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Academic literature on the topic 'Bi2O3'

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Published: 4 June 2021

Last updated: 7 September 2023

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Journal articles on the topic "Bi2O3"

Liang, Yuan-Chang, and Tsun-Hsuan Li. "Controllable morphology of Bi₂S₃ nanostructures formed via hydrothermal vulcanization of Bi₂O₃ thin-film layer and their photoelectrocatalytic performances." Nanotechnology Reviews 11, no. 1 (2021): 284–97. http://dx.doi.org/10.1515/ntrev-2022-0016.

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Abstract Bi2S3 nanostructures with various morphologies were synthesized through hydrothermal vulcanization at different sulfur precursor (thiourea) concentrations. A 100 nm thick sputter-deposited Bi2O3 thin-film layer on a fluorine-doped tin oxide glass substrate was used as a sacrificial template layer. The etching of the Bi2O3 sacrificial template layer and the regrowth of Bi2S3 crystallites during hydrothermal vulcanization produced the different Bi2S3 nanostructure morphologies. The lowest sulfur precursor concentration (0.01 M) induced the formation of Bi2S3 nanosheets, whereas the Bi2S3 nanoribbons and nanowires were formed with increased sulfur precursor concentrations of 0.03 and 0.1 M, respectively. These results indicate that sputter-deposited Bi2O3 thin-film layers can be effectively used to form low-dimensional Bi2S3 crystals with controllable morphologies. Among the various Bi2S3 samples, the Bi2S3 nanosheets exhibited superior photoactive ability. The higher active surface area, surface defect density, light absorption capacity, and photo-induced charge separation ability of Bi2S3 nanosheets explain their superior photoelectrocatalytic degradation ability of rhodamine B dyes.

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Malligavathy, M., and D. Pathinettam Padiyan. "Phase Purity Analysis and Optical Studies of Bi2O3 Nanoparticles Suitable for Photocatalytic Activity." International Journal of Nanoscience 17, no. 03 (2018): 1760040. http://dx.doi.org/10.1142/s0219581x17600407.

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Bismuth oxide was prepared using hydrothermal route and the effect of pH on the phase of Bi2O3 reported. Phase pure [Formula: see text]-Bi2O3 was prepared at the pH of 13 and its phase purity was confirmed from the X-ray diffraction pattern. At the pH of 10, 11 and 12 the hydrothermal synthesis yields Bi(OH)3, ([Formula: see text], [Formula: see text]-Bi2O3) & Bi2O4 and mixture of [Formula: see text]-Bi2O3 & Bi2O4, respectively. The optical band gaps were calculated from reflectance spectra using the Kubelka–Munk relation and the values decrease from 3.050(3) to 2.686(3) eV with the increase in pH value. Photoluminescence intensity decrease with the increase of pH value indicated the increase in the charge separation efficiency. In the application point of view, the photocatalytic activity of the samples was evaluated for methyl orange and among the four samples, [Formula: see text]-Bi2O3 degraded 67% within 4[Formula: see text]h. The degradation of dye was analyzed using pseudo first-order kinetics and the rate constant value was 0.0045(3) min[Formula: see text] with the correlation coefficient of 0.983.

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ARDELEAN, I., IOANA TODOR, P. PĂŞCUŢĂ, and V. IONCU. "STRUCTURAL INVESTIGATIONS OF MnO-Bi2O3 AND MnO-Bi2O3-As2O3 GLASS SYSTEMS BY IR SPECTROSCOPY." Modern Physics Letters B 17, no. 09 (2003): 355–59. http://dx.doi.org/10.1142/s0217984903005287.

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Glasses from x MnO · (100-x) Bi2O3 and x MnO · (100-x)[ Bi2O3 · As2O3 ] systems, with 0≤ x≤ 50 mol% were obtained in the same conditions and characterized by IR spectroscopy. The influence of a gradual increase of MnO content on the glass structure and the effect of changing the glass matrix compositions, were projected. The presence and the dependence of the bismuthate structural units BiO3 and BiO6 on the MnO content was analyzed.

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Taylor, Peter, and Vincent J. Lopata. "Some phase relationships between basic bismuth chlorides in aqueous solutions at 25 °C." Canadian Journal of Chemistry 65, no. 12 (1987): 2824–29. http://dx.doi.org/10.1139/v87-469.

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Observations are reported on the interconversion of solid α-Bi2O3, Bi12O17Cl2, BiOCl, and a daubréeite-like phase tentatively identified as Bi2O2(OH)Cl, in aqueous chloride solutions at 25 °C. Equilibrium constants, K, for these interconversions are expressed as anion activity ratios, {Cl−}/{OH−}. Experimental values of K for equilibrium between Bi2O3 and each of the chlorides are 100.56 ± 0.20 for Bi12O17Cl2, 101.5 ± 0.4 for Bi2O2(OH)Cl, and 103.13 ± 0.04 for BiOCl; the fatter two represent metastable equilibria. These equilibrium constants yielded the following estimates of Gibbs energies of formation: Bi12O17Cl2, −3141 ± 6 kJ mol−1;"Bi2O2(OH)Cl", −696 ± 4 kJ mol−1; BiOCl, −321.5 ± 1.3 kJ mol−1. Phase relationships among these solids are discussed, with reference to natural occurrence, other bismuth oxychlorides, and the stability of other basic salts of bismuth.

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Poltabtim, Worawat, Donruedee Toyen, and Kiadtisak Saenboonruang. "Theoretical Determination of High-Energy Photon Attenuation and Recommended Protective Filler Contents for Flexible and Enhanced Dimensionally Stable Wood/NR and NR Composites." Polymers 13, no. 6 (2021): 869. http://dx.doi.org/10.3390/polym13060869.

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This work aimed to theoretically determine the high-energy-photon-shielding properties of flexible wood/natural rubber (NR) and NR composites containing photon protective fillers, namely Pb, Bi2O3, or Bi2S3, using XCOM. The properties investigated were the mass attenuation coefficient (µm), linear attenuation coefficient (µ), and half value layer (HVL) of the composites, determined at varying photon energies of 0.001–5 MeV and varying filler contents of 0–1000 parts per hundred parts of rubber by weight (phr). The simulated results, which were in good agreement with previously reported experimental values (average difference was 5.3%), indicated that overall shielding properties increased with increasing filler contents but decreased with increasing incident photon energies. The results implied the potential of bismuth compounds, especially Bi2O3, to replace effective but highly toxic Pb as a safer high-energy-photon protective filler, evidenced by just a slight reduction in µm values compared with Pb fillers at the same filler content and photon energy. Furthermore, the results suggested that the addition of 20 phr wood particles, primarily aimed to enhance the rigidity and dimensional stability of Pb/NR, Bi2O3/NR, and Bi2S3/NR composites, did not greatly reduce shielding abilities; hence, they could be used as dimensional reinforcers for NR composites. Lastly, this work also reported the optimum Pb, Bi2O3, or Bi2S3 contents in NR and wood/NR composites at photon energies of 0.1, 0.5, 1, and 5 MeV, with 316–624 phr of filler being the recommended contents, of which the values depended on filler type and photon energy of interest.

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Schmidt, P., and H. Oppermann. "Zur Chemie von Mischphasen in komplexen Zustandsdiagrammen Das System Bi2O3/Bi2Se3/Bi2Te3/Chemistry of Mixed Crystals in Complex Phase Diagrams The System Bi2O3/Bi2Se3/Bi2Te3." Zeitschrift für Naturforschung B 55, no. 7 (2000): 627–37. http://dx.doi.org/10.1515/znb-2000-0710.

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Abstract Pseudoternary System Bi2O3/Bi2Se3/Bi2Te3, Phase Diagram, Thermodynamic Data The phase diagram of the pseudoternary system Bi2O3/Bi2Se3/Bi2Te3 is found to include a quaternary solid solution Bi2O2 (TexSe1-x) and ternary, intermetallic mixed crystals Bi2(TexSe1-x)3. Using thermodynamic modeling of the solid solutions it is possible to calcu late complex heterogeneous equilibria between all phases of this phase diagram. As a result we can thermodynamically describe the observed phase relations:Bi2(TexSe1-x)3 ⊿H°m(298) = 0; ⊿S°m(298) = R[xlnx + (1-x)ln(1-x)]Bi2O2(TexSe1-x) ⊿H°m(298) = Ω · x(1-x); O⊿S°m(298) = R/4 [xlnx + (1-x)ln(1-x)]Ω = 0,6 kcal/mol

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Danamah, Hamdan M., Siddheshwar D. Raut, Zeenat A. Shaikh, and Rajaram S. Mane. "Chemical Synthesis of Bismuth Oxide and Its Ionic Conversion to Bismuth Sulphide for Enhanced Electrochemical Supercapacitor Energy Storage Performance." Journal of The Electrochemical Society 169, no. 12 (2022): 120537. http://dx.doi.org/10.1149/1945-7111/acaac9.

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Successive ionic layer adsorption and reaction (SILAR)-based room-temperature (27 °C) chemical synthesis of bismuth oxide (Bi2O3) and its ionic conversion to bismuth sulphide (Bi2S3) has been performed and reported in the present study. A chemical conversion of the bismuth oxide to the bismuth sulphide has been confirmed using changes in the structure, phase, surface elementals , and surface area measurement studies. Both bismuth oxide and bismuth sulphide electrode materials are envisaged in electrochemical measurements wherein, the later has evidenced an enhanced electrochemical performance over the prior. The cycling stability of the Bi2S3 (91% after 2000 cycles) electrode material is also better than the Bi2O3 (87% over 2000 cycles). The as-assembled Bi2S3//Bi2S3 symmetric electrochemical supercapacitor device has adduced 75.3 Wh kg−1 and 749.8 W Kg−1energy and power densities, respectively with nearly 88.8% capacitance retention efficacy even over 2000 redox cycles measured at 10 A g−1. The commercial potential of the Bi2S3//Bi2S3 has been tested by powering the display panel “CNED” consisting nearly 42 LEDs with a full-light intensity.

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Astuti, Yayuk, Rizka Andianingrum, Abdul Haris, and Adi Darmawan. "The Role of H2C2O4 and Na2CO3 as Precipitating Agents on The Physichochemical Properties and Photocatalytic Activity of Bismuth Oxide." Open Chemistry 18, no. 1 (2020): 129–37. http://dx.doi.org/10.1515/chem-2020-0013.

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AbstractSynthesis of bismuth oxide synthesis through the precipitation method using H2C2O4 and Na2CO3 precipitating agents, identification of physicochemical properties and its photocatalysis activity for methyl orange degradation were conducted. The bismuth oxide synthesis was undertaken by dissolving Bi(NO3)3.5H2O in HNO3, then added precipitating agents to form precipitate. The results showed that bismuth oxide produced by H2C2O4 precipitating agent was a yellow powder containing a mixture of α-Bi2O3 (monoclinic) and β-Bi2O3 (tetragonal), porous with size of 28-85 μm. Meanwhile, the use of Na2CO3 as precipitating agent resulted in bismuth oxide consisting of α-Bi2O3 and β-Bi2O3 and Bi2O4, irregular shape without pore being 40-115 μm in size. Bismuth oxide synthesized with H2C2O4 precipitating agent showed higher photocatalytic activity compared to bismuth oxide synthesized using Na2CO3 on degrading methyl orange dye with degradation rate constants of 2.35x10-5 s-1 for H2C2O4 and 1.81x10-5 s-1 for Na2CO3.

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Bikharudin, Ahmad, Sutarno Sutarno, Yuichi Kamiya, and Nuryono Nuryono. "Effect of Thermal Treatment on Physico-Chemical Properties of White Mineral Trioxide Aggregate Synthesized from Limestone Precipitate Calcium Carbonate." Key Engineering Materials 884 (May 2021): 290–97. http://dx.doi.org/10.4028/www.scientific.net/kem.884.290.

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This study reports the preparation of white mineral trioxide aggregate (WMTA) using precipitate calcium carbonate (PCC) by sol-gel method at various thermal treatments 900, 1100, and 1300 °C. The composition of WMTA included PCC (55% CaO), C6H16O3Si-TEOS (21% SiO2), Al(NO3)3⋅9H2O (2% Al2O3), and Bi2O3. WMTA 1100 with the highest purity was proven by the presence of C3S, C3A, and α-Bi2O3 phase in X-ray diffraction patterns. Results show that based on the SEM image WMTA 1100 formed a smaller crystal agglomeration (6-8 µm) and FTIR analysis found Bi-O (BiO3) vibration in Bi2O3 at 1100 and 950 cm-1, a characteristic of the β-C2S phase. The radiopacity value of WMTA 1100 resembles ProRoot MTA, namely 6.86±0.36 millimeters of aluminum (mm Al). WMTA 1100 gives the highest compressive strength, smallest solubility, highest pH, and calcium levels in comparison to WMTA 900 and WMTA 1300.

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Liang, Yuan-Chang, Shao-Yu You, and Bo-Yue Chen. "Crystal Design and Photoactivity of TiO2 Nanorod Template Decorated with Nanostructured Bi2S3 Visible Light Sensitizer." International Journal of Molecular Sciences 23, no. 19 (2022): 12024. http://dx.doi.org/10.3390/ijms231912024.

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In this study, TiO2-Bi2S3 composites with various morphologies were synthesized through hydrothermal vulcanization with sputtering deposited Bi2O3 sacrificial layer method on the TiO2 nanorod templates. The morphologies of decorated Bi2S3 nanostructures on the TiO2 nanorod templates are controlled by the duration of hydrothermal vulcanization treatment. The Bi2S3 crystals in lumpy filament, nanowire, and nanorod feature were decorated on the TiO2 nanorod template after 1, 3, and 5 h hydrothermal vulcanization, respectively. Comparatively, TiO2-Bi2S3 composites with Bi2S3 nanowires exhibit the best photocurrent density, the lowest interfacial resistance value and the highest photodegradation efficiency towards Rhodamine B solution. The possible Z-scheme photoinduced charge separation mechanism and suitable morphology of Bi2S3 nanowires might account for the high photoactivity of TiO2 nanorod-Bi2S3 nanowire composites.

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Dissertations / Theses on the topic "Bi2O3"

MATOS, Lucyene Nascimento. "Estudo de fases cristalinas no sistema Bi2O3-Tb4O7." Universidade Federal de Goiás, 2009. http://repositorio.bc.ufg.br/tede/handle/tde/821.

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Made available in DSpace on 2014-07-29T15:07:11Z (GMT). No. of bitstreams: 1 Dissertacao Lucyene Quimica.pdf: 715050 bytes, checksum: f0341d52acc4a9b488b447ca69a136f7 (MD5) Previous issue date: 2009-08-25 A systematic study concerning the crystalline phases in the Bi2O3-rich region of the system Bi2O3-Tb4O7 was made. X-ray powder diffraction method, differential thermal analysis (DTA) and differential scanning calorimetry (DSC) were used in the study of the obtained crystalline phases. Sixteen samples with composition in the range of 4.21 to 33.33 mol% of Tb4O7 were synthesized at 800oC by solid state reaction synthesis. Three distinct crystalline phases were initially identified: a tetragonal phase in the composition range of 4.21 to 5.69 mol% of Tb4O7, a cubic phase for compositions between 6.12 and 29.03 mol% of Tb4O7, and a monoclinic one with 33.33 mol% of Tb4O7. The thermal stability of these compositions was rigorously investigated and the results shown that they are metastable phases in almost all studied range. Under thermal annealing at 500oC, tetragonal phase undergoes decomposition into two phases, monoclinic and rhombohedral ones. The cubic phase, under the same thermal annealing, decomposes partially into a rhombohedral one, except for the interval between 25.0 and 29.1 mol% of Tb4O7. In this case, there was not decomposition under thermal annealing at 500oC during 373 hours, suggesting the cubic phase is stable in this composition range. The monoclinic phase was also tested concerning its thermal stability, but no phase transition was verified. The existence of a possible composition range in the system Bi2O3-Tb4O7 with stable cubic -Bi2O3 type structure is a new and promise result, because of the high ionic conductivity presented by this phase Um estudo sistemático das fases cristalinas na região mais rica em óxido de bismuto no sistema Bi2O3-Tb4O7 foi realizado. As técnicas de Difração de Raios X pelo método do pó, Análise Térmica Diferencial (DTA) e Calorimetria Diferencial de Varredura (DSC) foram utilizadas no estudo das fases cristalinas obtidas. Dezesseis amostras com composição entre 4,21 e 33,33 mol% de Tb4O7 foram preparadas através de síntese por reação no estado sólido a 800oC. Três fases cristalinas distintas foram inicialmente identificadas: uma tetragonal, presente nas composições entre 4,21 e 5,69 mol% de Tb4O7, uma cúbica, para as composições entre 6,12 e 29,03 mol% de Tb4O7 e uma monoclínica com composição de 33,33 mol% de Tb4O7. Essas composições foram rigorosamente testadas quanto à sua estabilidade térmicas e os resultados indicaram que elas são metaestáveis em quase todo o intervalo investigado. Sob tratamento térmico a 500oC, a fase tetragonal se decompôs em duas fases, uma romboédrica e outra monoclínica. A fase cúbica, sob o mesmo tratamento térmico, se decompôs parcialmente em uma fase romboédrica, exceto para o intervalo compreendido entre 25,0 e 29,1 mol% de Tb4O7. Neste caso não houve decomposição sob tratamento térmico a 500oC durante 373 horas, indicando que a fase cúbica é estável neste intervalo de composição. A fase monoclínica também foi testada quanto à sua estabilidade, não tendo sido verificada nenhuma transição estrutural. A existência de uma possível faixa de composição no sistema Bi2O3-Tb4O7 com estrutura cúbica do tipo -Bi2O3 estável é um resultado inédito e promissor devido ela apresentar elevada condutividade iônica

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Silva, Fernanda Garcia e. [UNESP]. "Estudo do efeito de CdO e Bi2O3 no processo de nucleação e crescimento de cristais em matrizes vítreas [TeO2WO3] (CdO;Bi2O3)." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/91980.

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Made available in DSpace on 2014-06-11T19:25:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-06-18Bitstream added on 2014-06-13T19:32:45Z : No. of bitstreams: 1 silva_fg_me_ilha.pdf: 1536045 bytes, checksum: 5e52a7e90e9528b73306cfd4b593e9d3 (MD5) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Apresentamos os resultados de estudos de cristalização de possíveis crescimentos de cristais semicondutores de óxido de telúrio (CdTe) e óxido de bismuto (Bi2O3) no sistema de vidro 20WO3-80TeO2 (TW). Estes trabalho configura-se como um estagio anterior aos estudos de crescimentos de semicondutores em dimensões nanométricas(nanocristais “NCs”) em vidros teluritos. Com este objetivo foi sintetizada a amostra: dopadas com óxido de cadmio e óxido de bismuto, em diversas proporções em suas composições, e estas foram submetidas ou não a ambientes redutores. As amostras foram tratadas termicamente a diferentes temperaturas na região de transição vítrea (Tg ~ 350° C) e analisados utilizando as técnicas de DRX, DSC, FTIR e UV-Vis. Resultados de DRX mostram que acima do recozimento 400°C estimulou o crescimento de trigonal bipiramidal-estruturas conhecidas como α-TeO2 em ambas as amostras, e para as amostras TW dopadas com óxido de bismuto, o tratamento térmico induz a formação de cristais semicondutores de óxido de bismuto. Espectroscopia no infravermelho também mostrou a presença de estruturas Bi2O3. Absorção óptica UV-Vis indica que a presença de cádmio e bismuto em vidro TW sem serem submetidos a tratamento térmico não muda os valores de gap óptico, sendo que este corresponde a uma energia de ~2,8 eV The present work shows the studies of possible crystallization growth of crystals oxide semiconductors of tellurium (CdTe) and bismuth oxide (Bi2O3) in the glass system 20WO3- 80TeO2 (TW). This work consists in the first steps of initial growth of semiconductors in nanometrics dimensions (nanocrystals “NCs”) in glasses teluritos. The sample was synthecized: doped with oxide of cadmium and bismuth oxide, in diverse ratios of its compositions, and these had been submitted or not it reducing enviroments. The samples had been thermally dealt with the different temperatures in the region glass transition (Tg ~ 350° C) and analyzed using the techniques of DRX, DSC, FTIR and UV-Vis. Results of DRX showed that up to the annealing 400°C it stimulated the trigonal growth known bipiramidal-structures as α-TeO2 in both the samples, and for samples TW (B), the thermal treatment induced the crystal formation bismuth oxide semiconductors. Spectroscopy in the infra-red ray also showed the presence of Bi2O3 structures in samples TW (B). Optic absorption UV-Vis indicated that the presence of cadmium and bismuth in glass TW without being submitted not dumb the thermal treatment the values of optic gap, being that this corresponds to an energy of ~2,8 eV

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Silva, Fernanda Garcia e. "Estudo do efeito de CdO e Bi2O3 no processo de nucleação e crescimento de cristais em matrizes vítreas [TeO2WO3] (CdO;Bi2O3) /." Ilha Solteira, 2012. http://hdl.handle.net/11449/91980.

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Orientador: Keizo Yukimitu Banca: Ezequiel Costa Siqueira Banca: Américo Sheitiro Tabata Resumo: Apresentamos os resultados de estudos de cristalização de possíveis crescimentos de cristais semicondutores de óxido de telúrio (CdTe) e óxido de bismuto (Bi2O3) no sistema de vidro 20WO3-80TeO2 (TW). Estes trabalho configura-se como um estagio anterior aos estudos de crescimentos de semicondutores em dimensões nanométricas(nanocristais "NCs") em vidros teluritos. Com este objetivo foi sintetizada a amostra: dopadas com óxido de cadmio e óxido de bismuto, em diversas proporções em suas composições, e estas foram submetidas ou não a ambientes redutores. As amostras foram tratadas termicamente a diferentes temperaturas na região de transição vítrea (Tg ~ 350° C) e analisados utilizando as técnicas de DRX, DSC, FTIR e UV-Vis. Resultados de DRX mostram que acima do recozimento 400°C estimulou o crescimento de trigonal bipiramidal-estruturas conhecidas como α-TeO2 em ambas as amostras, e para as amostras TW dopadas com óxido de bismuto, o tratamento térmico induz a formação de cristais semicondutores de óxido de bismuto. Espectroscopia no infravermelho também mostrou a presença de estruturas Bi2O3. Absorção óptica UV-Vis indica que a presença de cádmio e bismuto em vidro TW sem serem submetidos a tratamento térmico não muda os valores de "gap" óptico, sendo que este corresponde a uma energia de ~2,8 eV Abstract: The present work shows the studies of possible crystallization growth of crystals oxide semiconductors of tellurium (CdTe) and bismuth oxide (Bi2O3) in the glass system 20WO3- 80TeO2 (TW). This work consists in the first steps of initial growth of semiconductors in nanometrics dimensions (nanocrystals "NCs") in glasses teluritos. The sample was synthecized: doped with oxide of cadmium and bismuth oxide, in diverse ratios of its compositions, and these had been submitted or not it reducing enviroments. The samples had been thermally dealt with the different temperatures in the region glass transition (Tg ~ 350° C) and analyzed using the techniques of DRX, DSC, FTIR and UV-Vis. Results of DRX showed that up to the annealing 400°C it stimulated the trigonal growth known bipiramidal-structures as α-TeO2 in both the samples, and for samples TW (B), the thermal treatment induced the crystal formation bismuth oxide semiconductors. Spectroscopy in the infra-red ray also showed the presence of Bi2O3 structures in samples TW (B). Optic absorption UV-Vis indicated that the presence of cadmium and bismuth in glass TW without being submitted not dumb the thermal treatment the values of optic " gap", being that this corresponds to an energy of ~2,8 eV Mestre

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Moore, Katharine. "Preparation and characterisation of mixed CeO2-Nb2O5-Bi2O3 nanoparticles." Thesis, University of Cambridge, 2015. https://www.repository.cam.ac.uk/handle/1810/252691.

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Mixed metal oxides are ionic compounds containing at least two metal ions within an oxide structure. The literature contains a plethora of examples of mixed metal oxides on the bulk scale, which have been well characterised, however, mixed metal oxides on the nanoscale are far less well understood. The work presented here investigates the Bi2O3-CeO2-Nb2O5 mixed oxide system and characterises the resulting nanoparticles and crystal structures. Although the parent oxides are well known and much work has previously been done in analysing their crystal structures, combinations of these oxides have not been well characterised, especially on the nanoscale. Using high resolution electron microscopy (HRTEM), powder X-ray diffraction (PXRD), electron dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) as analytical tools, the structures of the nanoparticles in this system have been explored. As each of the parent oxides possess useful properties, which have been utilised in industrial applications such as electrolyte components in solid oxide fuel cells and as catalysts in a range of chemical reactions, it was hypothesised that if all three metal ions could be contained in one particle they could show novel and interesting characteristics. It was proposed that due to the more relaxed crystal structure in nanoparticles, the solid solubility of the metal ions should be increased, and a solid solution of ions would form. This work presents results showing the synthesis of binary and ternary oxides in the nano-form within the Bi2O3-CeO2-Nb2O5 system, including quantitative analysis of these particles. Secondly, and most importantly, it presents the first successful synthesis of quaternary oxide nanoparticles containing bismuth, cerium and niobium using the low temperature resin-gel method. Finally, the work attempts to explain how and why the ions are ordered in a given arrangement, with bismuth showing a preference for surface site occupation, as shown by XPS data, and describes some preliminary computational results which corroborate the experimental data.

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Kotsantonis, Sotirios. "Oxygen transport in novel electrolyte materials based on Bi2O3." Thesis, Imperial College London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.529367.

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Oudich, Fayssal. "Contribution à l’étude thermodynamique du système Pb-Bi-(Hg)-Fe-(Al,Cr)-O : étude des systèmes Bi2O3–PbO–Al2O3 et Bi2O3–PbO–Fe2O3." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0273/document.

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Le présent travail de recherche s’inscrit dans un projet global, dont le but est de comprendre et résoudre un problème de corrosion d’un acier dit T91 par un mélange métallique liquide de plomb et bismuth. Il présente un intérêt pour la communauté nucléaire qui envisage de développer une nouvelle génération de réacteurs dits ADS. Ce travail est une contribution à l’étude thermodynamique d’un système plus complexe composé de plusieurs éléments : Al, Bi, Pb, Fe, Cr et l’oxygène. Plus précisément, il a été focalisé sur les systèmes à base de mélanges d’oxydes Bi2O3 + PbO + Al2O3 et Bi2O3 + PbO + Fe2O3. Un travail expérimental a été accompli, au cours duquel ces mélanges à différentes proportions ont été recuits à une température supérieure à 600 °C pendant plusieurs jours, suivi de l’analyse des échantillons par des techniques de pointe. Il a permis de découvrir les différents produits formés dans les différentes conditions de température, de compositions et atmosphères. Les résultats ont permis de faire aussi une modélisation à l’aide d’un outil informatique. Tout cela aide à mieux comprendre et anticiper la formation des produits de corrosion de l’acier par le mélange métallique liquide This research work takes part in a global project whose aim is to understand and solve a corrosion problem of a steel called T91 caused by a liquid mixture of lead-bismuth. It presents a great interest for the nuclear community who aims to develop a new generation of reactors called ADS. This study is a contribution to the thermodynamic study of a complex system involving several elements such as Al, Bi, Pb, Fe, Cr and oxygen. More precisely, it was focused on mixtures of the following oxides Bi2O3 + PbO + Al2O3 and Bi2O3 + PbO + Fe2O3. A long experimental work had been accomplished, in which mixtures of different proportions of these oxides were prepared and heated above 600 °C for several days, followed by samples analyses by use of accurate and advanced techniques. It allowed discovering the different products formed within the different experimental conditions. The results have been modeled using a computer tool. All this allowed a better understanding and anticipating the corrosion products formation of the T91 steel by the metallic liquid

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Laurent, Kévin. "Etude expérimentale de la microstructure et des propriétés électriques et optiques de couches minces et de nanofils d'oxydes métalliques (d-Bi2O3 et ZnO) synthétisés par voie électrochimique." Phd thesis, Université Paris-Est, 2008. http://tel.archives-ouvertes.fr/tel-00470542.

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L'intérêt porté sur la miniaturisation des systèmes par la communauté scientifique est grand, que ce soit pour des raisons de mobilité, d'économie d'énergie ou d'innovation technologique. L'objectif de cette thèse est de déterminer les caractéristiques physiques et structurales des couches minces et des nanofils d'oxydes métalliques synthétisés par la méthode électrochimique. La première partie de cette thèse est consacrée à l'oxyde de bismuth en phase delta. Les couches minces élaborés par électrochimie sont de très bonne qualité cristalline, et seul la phase delta- Bi2O3 est présente. Le caractère nano structuré des couches minces est mis en évidence par les expériences de microscopie électronique en transmission (MET) et participe à la stabilisation de cette phase à température ambiante. Les mesures de conductivité réalisées par spectroscopie d'impédance complexe montrent un comportement différent selon la nature du substrat utilisé. Nous observons une excellente conductivité électrique des dépôts réalisés sur les substrats en argent doré (4*10-3 S*cm-1), alors que les dépôts obtenus sur l'inox montre un comportement très résistif (10-7 S*cm-1). La seconde partie de cette étude concerne l'oxyde de zinc. Les conditions d'élaboration par électrochimie influence les propriétés structurales et physiques des couches minces obtenues. Les différents traitements thermiques réalisés sur les couches minces de ZnO ont permis d'améliorer la qualité optique des couches et de modifier la structure du ZnO par incorporation d'azote lors de recuit dans l'ammoniaque. La dernière partie est consacrée à la synthèse et à la caractérisation de nanofils de ZnO élaborés par la méthode " template ". Cette méthode nous a permis de confiner la croissance par électrochimie dans des pores de différents diamètres. Les observations réalisés par MET et MET en Haute Résolution montrent que les nanofils obtenus sont monocristallins et de bonne qualité. Les propriétés d'émission observées en PL sont très proches des propriétés d'émission des couches minces

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Bourja, Lamia. "Étude du système CeO2-Bi2O3 pour applications catalytiques et conductimétriques." Phd thesis, Toulon, 2011. http://tel.archives-ouvertes.fr/tel-00659119.

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Dans le cadre général des études de matériaux multifonctionnels, électrolytiques et catalytiques, susceptibles d'être utilisés au sein de dispositifs de détection de gaz, un système d'oxydes (1-x)CeO2. x/2Bi2O3 avec 0≤x≤1 a été élaboré par coprécipitation puis traitement thermique à 600°C. Le système ainsi obtenu correspondrait à un diagramme de phases original, constitué d'un domaine de solutions solides (Ce1-xBixO2-z pour x ≤ 0,20), d'un domaine multiphasé pour 0,3≤x≤0,7 comportant une phase de type quadratique b'-Bi2O3 et une phase cubique substituée limite (x=0,20), d'un autre domaine multiphasé pour les compositions 0,8≤x≤1, comportant une phase quadratique b-Bi2O3 et une phase monoclinique. Ces deux phases ont déjà été considérées dans la littérature comme phases métastables résultant de divers modes de refroidissement de la phase pure Bi2O3. Dans le cas présent, la stabilisation de ces deux phases b' et b en présence d'une phase substituée cubique Ce1-xBixO2-z pourrait être due à la présence d'ions cérium au sein duréseau cristallin de Bi2O3. Les interactions catalytiques entre des échantillons polycristallins de ce système avec x variable et des mélanges air-CO et air CH4 ont été étudiées par spectroscopie infrarouge à transformée de Fourier dans le domaine 100 à 525°C. Il apparait que les composés riches en cérium ou riches en bismuth n'ont pas la même réactivité vis-à-vis des gaz CH4 ou CO. Cette diversité de propriétés catalytiques pourrait être utilisée au sein de systèmes multicapteurs de gaz.Une étude de la conduction électrique du système pour x variable a été effectuée par spectroscopie d'impédance électrique entre 100 et 750°C. Les représentations Nyquist des impédances électriques ont été interprétées en mettant en jeu des modèles de type élément de phase constante ou de type Warburg pour prendre en compte l'hétérogénéité des échantillons ainsi que les phénomènes de réaction-diffusion aux électrodes. La conductivité en volume (coeur de grains) augmente avec la composition, avec deux types d'évolutions distinctes : une évolution caractéristique de la phase substituée liée à l'augmentation du taux de lacunes, une évolution dans le système biphasé avec une forte augmentation de conductivité au-dessus de x=0,3 et un maximum atteint pour x=0,7. La phase quadratique de type b'-Bi2O3 connue comme phase métastable est ainsi stabilisée au sein de ce système mixte, au moins à 600°C: elle serait à l'origine de la forte conductivité ionique observée pour la composition proche de x = 0,7.

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Webster, Nathan A. S. "New fluorite-type Bi2O3-based solid electrolytes : characterisation, conductivity and crystallography." University of Western Australia. School of Biomedical and Chemical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0092.

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[Truncated abstract] New, double-doped, Bi2O3-based materials in the Bi2O3 Ln2O3 PbO (Ln = La, Nd, Er and Yb) and Bi2O3 WO3 PbO systems were prepared using solid-state reactions. For the Bi2O3 Er2O3 PbO and Bi2O3 Yb2O3 PbO systems, the air-quenchable compositional domain of the fcc fluorite-type phase was partially established. Temperature dependent conductivity measurements were performed on these quenched-in fluorite-type materials using AC impedance spectroscopy. Conductivity at 750[degrees Celsius] generally increased with increasing Pb2+/Ln3+ and decreasing (Ln3++Pb2+)/Bi3+ ratios. The material (BiO1.5)0.70(ErO1.5)0.15(PbO)0.15 had a conductivity of 0.66 [plus-minus] 0.05 S cm-1 at 750[degrees Celsius], placing it among the most highly conductive Bi2O3-based materials, and was the best new fluorite-type material from a combined conductivity and structural stability viewpoint. Some of the new materials in the Bi2O3 La2O3 PbO and Bi2O3 Nd2O3 PbO systems appeared to have the quenched-in fluorite type structure based on powder X-ray diffraction data. These materials had very high conductivities at 750[degrees Celsius] of `~ 1 S cm-1, but underwent rapid symmetry lowering transformations during heating, thus making them unsuitable for use as solid electrolytes. The fluorite-type structure was not air-quenchable in the Bi2O3 WO3 PbO system, for the compositions synthesised. Room temperature neutron powder diffraction data were collected for quenched-in fluorite-type materials in the (BiO1.5)0.80(LnO1.5)0.20-x(PbO)x, Ln = Er and Yb, x = 0, 0.03, 0.06 and 0.09, and (BiO1.5)0.97-y(ErO1.5)y(PbO)0.03, y = 0.27, 0.17 and 0.12, series. ... This suggests that Pb2+ dopant cations occupy face-centre positions in the fcc unit cell, and the Pb2+ lone pair electrons are likely to be orientated towards an oxide ion vacancy in an adjacent tetrahedral site. Pb2+/oxide ion vacancy interactions affect the migration of oxide ions/oxide ion vacancies through the structure, and are responsible for the significantly larger activation energy for oxide ion migration in the Pb2+-doped materials relative to the Pb2+-free materials. For example, the activation energies of (BiO1.5)0.80(ErO1.5)0.20-x(PbO)x, x = 0.03 and 0.06, were 1.50 [plus-minus] 0.02 and 1.54 [plus-minus] 0.02 eV, respectively, while the activation energy for (BiO1.5)0.80(ErO1.5)0.20 was 1.25 [plus-minus] 0.04 eV. Long-term annealing of the quenched in fluorite-type materials in the Bi2O3 Er2O3 PbO and Bi2O3 Yb2O3 PbO systems at 500 and 600[degrees Celsius] resulted in conductivity lowering structural transformations, making these materials unsuitable for practical use as solid electrolytes at these temperatures. For example, the materials (BiO1.5)0.80(ErO1.5)0.20-x(PbO)x, x = 0.03, 0.06 and 0.09, underwent a fluorite-type to tetragonal transformation during annealing at 500[degrees Celsius] due to <100> oxide ion vacancy ordering, and the rate of conductivity decay at 500[degrees Celsius] increased with increasing Pb2+/Er3+ ratio. Long-term annealing experiments at 500[degrees Celsius] performed on air quenched (Bi2O3)0.705(Er2O3)0.245(WO3)0.050 showed that the disordered fluorite-type structure of this material was not fully stabilised, as evidenced by the presence of superlattice reflections in selected area electron diffraction patterns for the material annealed for 2000 hours, and a gradual conductivity decay after ~ 150 hours annealing.

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FERREIRA, Katiúscia Daiane. "ESTUDO DE FASES E CRESCIMENTO DE MONOCRISTAIS NO SISTEMA Bi2O3 - TiO2 - ZrO2." Universidade Federal de Goiás, 2008. http://repositorio.bc.ufg.br/tede/handle/tde/1044.

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Made available in DSpace on 2014-07-29T15:12:45Z (GMT). No. of bitstreams: 1 dissertacaokatiusciaDaia.pdf: 861870 bytes, checksum: 844752d18d747dab701abe725ec66d0d (MD5) Previous issue date: 2008-08-18 I n this work a systematic study on the phase formation and stability in the system Bi2O3-ZrO2 was realized, the solubility of the Zr4+ ion in Bi12TiO20 (BTO) was investigated and Zr-doped BTO crystals (BTO:Zr) were grown and optically characterized. It was verified that a tetragonal phase was formed in the following wide composition interval: (6-x)Bi2O3:(1+x)ZrO2, with x = 0.5, 0.3, 0.2, 0.1, 0, -0.1, -0.2, -0.3, -0.5, -0.65 e -0.7. The phases were synthesized by solid state reaction and the powders were characterized by Xray diffraction and diferential thermal analysis. The formed tetragonal phase, however, was metastable for all investigated compositions and its preparation was dependent on the sample thermal history. The stable phase at room temperature was a monoclinic one. A low solubility of Zr4+ in BTO was verified, but BTO:Zr single crystals were grown by Top Seeded Solution Growth (TSSG) technique. Good quality crystalline samples were prepared and characterized by chemical compositon and by optical activity, photoconductivity and electro-optical measurements. The results shown that Zr-doping produced a decreasing in the crystal photosensitivity, and almost no changes in the optical activity and electro-optical coefficient were generated. Neste trabalho foi realizado um estudo sistemático das condições de preparação e estabilidade de fases no sistema Bi2O3-ZrO2, a solubilidade do íon Zr4+ no Bi12TiO20 (BTO) foi investigada e cristais de BTO dopados com Zr4+ (BTO:Zr) foram crescidos e caracterizados opticamente. Verificou-se que uma fase tetragonal é formada no amplo intervalo de composições (6- x)Bi2O3:(1+x)ZrO2, com x = 0,5, 0,3, 0,2, 0,1, 0, -0,1, -0.2, -0,3, -0,5, -0,65 e - 0,7. As fases foram sintetizadas por reação no estado sólido e os pós foram caracterizados por difração de raios-X e análise térmica diferencial. A fase tetragonal formada, no entanto, é metaestável em todo o intervalo de composições investigadas, sendo sua obtenção condicionada à história térmica da amostra. A fase estável à temperatura ambiente é monoclínica. Foi constatado que a solubilidade do Zr4+ no BTO é baixa, mas cristais de BTO:Zr foram crescidos através da técnica Top Seeded Solution Growth (TSSG). Amostras cristalinas de boa qualidade óptica e estrutural foram preparadas e caracterizadas quanto à composição química e através de medidas de atividade óptica, fotocondutividade e coeficiente eletro-óptico. Os resultados demonstram que o Zr produz uma diminuição na fotosensibilidade do cristal, provocando pouca alteração nos valores de atividade óptica e coeficiente eletro-óptico

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Books on the topic "Bi2O3"

Ristić, Momčilo M. Fazovye diagrammy sostoi͡a︡niĭ sistem Bi2O3-MexOy: Dopolzheno na X zasedenii Otdelenii͡a︡ tekhnicheskikh nauk, 21.11.1989. g. SANU, 1991.

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Crumpton, Trevor Edward. Characterisation of new phases synthesised by incorporating S,W,Mo, Cr, and Re oxoanions into Bi2O3. University of Birmingham, 2002.

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Leonard, Dana. LSC CPSU BIO3: Laboratory Manual for Introduction to Life Sciences. Learning Solutions, 2011.

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Book chapters on the topic "Bi2O3"

Villars, P., K. Cenzual, J. Daams, et al. "Sr6Al12O24∙Bi2O3." In Structure Types. Part 8: Space Groups (156) P3m1 – (148) R-3. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-70892-6_590.

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Villars, P., K. Cenzual, J. Daams, et al. "“Bi2O3∙2WO3”." In Structure Types. Part 9: Space Groups (148) R-3 - (141) I41/amd. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02702-4_512.

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Jain, M., and A. Gupta. "204 Diamagnetic susceptibility of Bi2O3." In Diamagnetic Susceptibility and Anisotropy of Inorganic and Organometallic Compounds. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-44694-1_205.

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Branković, G., D. Krsmanović, and B. Jordović. "Grain Growth in System CdO-Bi2O3." In Advanced Science and Technology of Sintering. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4419-8666-5_36.

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Sumimiya, S., T. Nanba, Y. Miura, and S. Sakida. "Optical Properties of Bi2O3-La2O3-Al2O3-B2O3Glasses." In Advances in Glass and Optical Materials II. John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118144138.ch12.

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Hwang, Chawon, Bong Ki Ryu, and Shigeru Fujino. "Surface Tension of Bi2O3-B2O3-SiO2Glass Melts." In Ceramic Transactions Series. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118472590.ch19.

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Chihara, H., and N. Nakamura. "NQRS Data for Bi2O3 (Subst. No. 0412)." In Landolt-Börnstein - Group III Condensed Matter. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02892-2_417.

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Chihara, H., and N. Nakamura. "NQRS Data for Bi2O3 (Subst. No. 0413)." In Landolt-Börnstein - Group III Condensed Matter. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02892-2_418.

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Low, It Meng, and Nurul Zahirah Noor Azman. "Effect of Bi2O3 Particle Sizes and Addition of Starch into Bi2O3–PVA Composites for X-Ray Shielding." In Polymer Composites and Nanocomposites for X-Rays Shielding. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-13-9810-0_10.

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Chiang, Yet-Ming, Jonq-Ren Lee, and Haifeng Wang. "Microstructure and Intergranular Phase Distribution in Bi2O3-Doped ZnO." In Ceramic Microstructures. Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5393-9_11.

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Conference papers on the topic "Bi2O3"

Bai, Bing, Nigel M. Sammes, Alevtina L. Smirnova, and Geoff Tompsett. "Characterization of Scandia Stabilized Zirconia Doped With Various Bi2O3 Additions as an IT-SOFC Electrolyte." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97154.

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Bi2O3 doped scandia stabilized zirconia systems have shown promise for use as electrolytes in IT-SOFCs. Sintering properties, crystal phase transformation, microstructure, as well as electrical conductivity of the Bi2O3 doped Sc2O3-ZrO2 systems were investigated. The effect of Bi2O3 doping from 0 to 2.0mol%, and different sintering temperatures, on the properties and performance of the electrolyte were examined. The presence of Bi2O3 aided the sintering process and better sintering for the doped system was achieved at lower temperatures. The rhombohedral phase in 10ScSZ was successfully stabilized to cubic phase at room temperature with a concentration of 1 mol% and 2 mol% Bi2O3 sintered at 1100°C–1400°C. The achievement of cubic structure depends upon both the Bi2O3 concentration and the sintering temperature. Higher electrical conductivity was achieved with Bi2O3 doped Sc2O3-ZrO2 systems than 10ScSZ below 600°C. A maximum conductivity of 1.68 × 10−2 S/cm at 700°C was obtained for 2 mol% Bi2O3 doped sample sintered at 1100°C.

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Glazek, W., L. Pawlowski, R. N. Vannier, and J. Zdanowski. "Preliminary Study on Plasma Spraying of Ion Conducting Oxides on Bi2O3 Base." In ITSC2005, edited by E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p1214.

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Abstract The powders of Bi2O3 and Bi2WO6 were prepared by calcination, sintering and crushing. Their sizes were screened out to be in the range from 50 to 150 µm. The initial spray parameters were optimised using numerical codes simulating the behaviour of powders in plasma jet. Spray experiments onto metallic substrates were carried out using commercial plasma torch SG-100, equipped in an external powder injector. The spraying of coatings was carried out by varying electric power input to plasma, distance of spraying and the geometry of injector. The morphology of sprayed coatings was investigated using scanning electron microscope (SEM). X-ray Diffraction (XRD) of Bi2O3 coatings revealed the α-Bi2O3 phase, present in the initial powder, and also β-Bi2O3 in some of the samples. Reduction of oxide into metallic Bi at spraying process was not discovered using XRD and Differential Thermal Analysis (DTA). Bi2WO6 powder was crystallized in an orthorhombic phase that transformed into tetragonal one at spraying. Finally, the X-ray Photoelectric Spectroscopy (XPS) investigations revealed a possible presence of Bi(OH)3 phase in the coatings sprayed using Bi2O3 powder.

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Bandyopadhyay, S., Sk Anirban, A. Sinha, S. K. Pradhan, and A. Dutta. "Conductivity enhancement in mechanosynthesized Bi2O3." In DAE SOLID STATE PHYSICS SYMPOSIUM 2015. Author(s), 2016. http://dx.doi.org/10.1063/1.4948043.

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Duda, V. M., E. F. Dudnik, and I. V. Prushko. "Some Optical Properties of new Monocrystals in Bi2O3-V2O5 and Bi2O3-P2O5 Oxide Systems." In Photorefractive Materials, Effects, and Devices II. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/pmed.1993.thb.12.

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HU, RONG, CHUNLAN JIANG, LIANG MAO, YUXUAN QI, and ZAICHENG WANG. "EXPERIMENTAL STUDY ON THE SHOCK-INDUCED REACTION CHARACTERISTICS OF PTFE/AL/BI2O3 REACTIVE MATERIALS." In 32ND INTERNATIONAL SYMPOSIUM ON BALLISTICS. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/ballistics22/36138.

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Four PTFE/Al/Bi2O3 ternary reactive materials with different Al contents were prepared by molded sintering method to obtain the influence of Al content on the mechanical properties and impact reaction characteristics of PTFE/Al/Bi2O3 ternary reactive materials, and their mechanical and reaction properties were tested by drop-weight test and the shock induced reaction phenomena were observed by high-speed camera. The results show that the characteristic drop height first decreases and then increases as the Al content increases from 24% to 48%, and the reaction delay time remains unchanged, and the reaction duration first increases and then decreases. When the Al excess is doubled, its reaction is the most intense, the duration is the longest, and the reactivity reaches the strongest. The results of the study can provide some reference for the engineering application of PTFE/Al/Bi2O3

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Ohara, Seiki, and Yutaka Kuroiwa. "Bi2O3-based Ytterbium Doped Fiber Laser." In Conference on Lasers and Electro-Optics. OSA, 2009. http://dx.doi.org/10.1364/cleo.2009.cthn4.

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Kumari, Sonia, Devendra Mohan, and Sandeep Yadav. "Effect of Bi2O3 content on non linear optical properties of TeO2.Bi2O3.B2O3.ZnO glass system." In PROCEEDINGS OF THE NATIONAL CONFERENCE ON RECENT ADVANCES IN CONDENSED MATTER PHYSICS: RACMP-2018. Author(s), 2019. http://dx.doi.org/10.1063/1.5097118.

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Deshpande, A. V., and V. D. Raut. "Study of lithium borate glasses containing Bi2O3." In SOLID STATE PHYSICS: Proceedings of the 58th DAE Solid State Physics Symposium 2013. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4872762.

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Naoki Sugimoto, Tatsuo Nagashima, Tomoharu Hasegawa, and Seiki Ohara. "Bi2O3-based fiber for highly nonlinear applications." In 2008 Conference on Lasers and Electro-Optics (CLEO). IEEE, 2008. http://dx.doi.org/10.1109/cleo.2008.4551006.

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Nagashima, T., T. Hasegawa, S. Ohara, and N. Sugimoto. "Fusion-spliceable Bi2O3-based photonic crystal fiber." In OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference. IEEE, 2007. http://dx.doi.org/10.1109/ofc.2007.4348774.

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Reports on the topic "Bi2O3"

Ehst, D. A. Production of Ra225 precursor for Ac225/Bi213 generators. Final CRADA Report. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/967952.

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