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Journal articles on the topic 'Bismuth oxide'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Karthik, Kasinathan, K. R. Sunaja Devi, Dephan Pinheiro, and Sankaran Sugunan. "Influence of Surfactant on the Phase Transformation of Bi2O3 and its Photocatalytic Activity." Australian Journal of Chemistry 72, no. 4 (2019): 295. http://dx.doi.org/10.1071/ch18446.

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Bismuth oxide with its unique narrow bandgap has gained significant attention in the field of photocatalysis. A new and efficient method to synthesise bismuth oxide with tuneable properties is proposed herein. A surfactant assisted modified sol–gel method is used to synthesise bismuth oxide with excellent photocatalytic activity for the degradation of Rhodamine B dye. Three different surfactants, namely polyethylene glycol-400, sodium lauryl sulfate, and cetyltrimethylammonium bromide (CTAB) have been used. The fabricated bismuth oxide nanoparticles were characterised by X-ray diffraction, IR,
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2

Bartoli, Mattia, Pravin Jagdale, and Alberto Tagliaferro. "A Short Review on Biomedical Applications of Nanostructured Bismuth Oxide and Related Nanomaterials." Materials 13, no. 22 (2020): 5234. http://dx.doi.org/10.3390/ma13225234.

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In this review, we reported the main achievements reached by using bismuth oxides and related materials for biological applications. We overviewed the complex chemical behavior of bismuth during the transformation of its compounds to oxide and bismuth oxide phase transitions. Afterward, we summarized the more relevant studies regrouped into three categories based on the use of bismuth species: (i) active drugs, (ii) diagnostic and (iii) theragnostic. We hope to provide a complete overview of the great potential of bismuth oxides in biological environments.
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3

Lazarević, Z. Ž., N. Ž. Romčević, M. J. Romčević, and B. D. Stojanović. "Raman Spectra of Bismuth Titanate Ceramics." Materials Science Forum 555 (September 2007): 243–47. http://dx.doi.org/10.4028/www.scientific.net/msf.555.243.

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Bismuth titanate is a typical layer-structured ferroelectric material and belongs to the Aurivilius type-structure compounds family. A bismuth titanate ceramic material could be obtained by mechanically activated synthesis after thermal treatment at a temperature slightly lower than in conventional solid-state reaction. In this case bismuth titanate was prepared through mechanochemical synthesis starting from bismuth oxide and titanium oxide in rutile form. The mixture of oxides was milled in a zirconium oxide jar in a planetary ball-mill in intervals from 1 to 12 hours. The ratio of powders t
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4

Wang, Xinxin, and Yifa Dong. "Studies on the Preparation and Photocatalytic Performance of Bismuth Ferrite." E3S Web of Conferences 245 (2021): 03078. http://dx.doi.org/10.1051/e3sconf/202124503078.

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Iron oxide and bismuth oxide powder are synthesized by the liquid phase precipitation method. Then a certain proportion of iron oxide, bismuth oxide and sodium chloride are mixed and ground to prepare the bismuth ferrite precursor by the molten salt method. The bismuth ferrite precursors are calcined at different temperatures to obtain bismuth ferrite photocatalyst. By studying the degradation performance of bismuth oxide, iron oxide and bismuth ferrite photocatalysts for methyl orange dyes, the best conditions for the degradation of methyl orange dyes by bismuth ferrite photocatalysts are fou
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5

Bartonickova, Eva, Jaroslav Cihlar, and Klara Castkova. "Microwave-assisted synthesis of bismuth oxide." Processing and Application of Ceramics 1, no. 1-2 (2007): 29–33. http://dx.doi.org/10.2298/pac0702029b.

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Single phase and ultrafine bismuth oxide was synthesized via microwave-assisted hydrothermal synthesis. The effect of reaction parameters (temperature/pressure and pH) on the product phase composition and morphology was discussed. The transformation of bismuth hydroxide into bismuth oxide was controlled by pH value and it was accelerated by time and temperature. The phase composition of reaction products was strongly dependent on pH value. The amorphous products were obtained at acidic pH conditions and the crystalline single phase product ?-Bi2O3 phase was obtained at pH ?12. The particle siz
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6

Korolev, A. A., S. V. Sergeichenko, K. L. Timofeev, G. I. Maltsev, and R. S. Voinkov. "Pyroelectrometallurgical processing of bismuth-containing oxides." iPolytech Journal 25, no. 6 (2022): 795–806. http://dx.doi.org/10.21285/1814-3520-2021-6-795-806.

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In this work, we substantiate and develop a general pyroelectrometallurgical technology for processing bismuth dross and oxides (the intermediate products of lead bullion refining by the Betterton-Kroll process) to obtain crude bismuth. The research focuses on bismuth dross (3–5% Bi; 80–85% Pb) remelted at 500–600°С in the presence of NaNO3 and NaOH, as well as the obtained alkaline melt (bismuth oxides, 1–5% Bi; 60–70% Pb). The conducted experiments allowed us to determine optimal parameters of the main steps of processing bismuth oxide, as well as the characteristics of obtained products. Re
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7

Chadwick, A. V., and A. J. Francklin. "Thermoelectric power studies of bismuth oxide and mixed oxides based on bismuth oxide." Philosophical Magazine A 68, no. 4 (1993): 787–97. http://dx.doi.org/10.1080/01418619308213997.

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8

YUKHIN, YU M., E. S. KOLEDOVA, A. S. DAMINOV, E. V. TIMAKOVA, V. A. KUZNETSOV, and O. D. SHEINA. "OBTAINING BISMUTH AND ITS HIGH-PURITY COMPOUNDS." Chemistry for Sustainable Development 32, no. 5 (2024): 687–96. https://doi.org/10.15372/csd2024604.

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The process of metal bismuth dissolution in nitric acid was studied, and a comparison was made over environmentally friendly methods of obtaining bismuth nitrate solutions by the preliminary oxidation of bismuth, as well as by its dissolution in the presence of urea or ammonium nitrate. It has been shown that the dissolution of bismuth in the presence of ammonium nitrate at a molar ratio of ammonium nitrate to bismuth equal to 1.5-3.5 and a temperature of 70±5 °C allows eliminating the release of nitrogen oxides into the gas phase and obtaining a solution with a high concentration of bismuth.
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9

Məmməd oğlu Qarayev, Əhməd, and Aliyə Bayram Rzayeva. "Studying of obtaining conditions of bismuth selenide in the aquatic medium." SCIENTIFIC RESEARCH 08, no. 4 (2022): 189–93. http://dx.doi.org/10.36719/2789-6919/08/189-193.

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Məqalədə bismut oksidin elementar selenlə qarşılıqlı təsirindən bismut(III) selenidə su mühitində trasformasiya şəraiti öyrənilməsi verilmişdir. Birləşmənin əmələ gəlməsinin temperaturdan, mühitin pH-dan, reduksiyaedicinin miqdarından asılılığı araşdırılmış və prosesin reaksiya tənliyi tərtib edilmişdir. Alınan maddənin fiziki kimyəvi xassələri TQ, DTA, RFA, və kimyəvi analiz metodları ilə müəyyən edilmişdir. Termoqravimetrik analizlə nümunədə Bi:Se nisbəti 90.65:49.98 təşkil etmişdir. Differensial termiki analizlə nümunənin ərimə temperaturunun 7050C olduğu təyin edilmişdir. Rentgen quruluş a
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10

Yu, Hyeongmin, Doyeub Kim, Incheol Jeong, Ha-Ni Im, and Kang Taek Lee. "Superionic Conducting Triple-Doped Stabilized Bismuth Oxide for High Performing Reversible Solid Oxide Cells." ECS Meeting Abstracts MA2022-02, no. 47 (2022): 1751. http://dx.doi.org/10.1149/ma2022-02471751mtgabs.

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Reversible solid oxide cells (SOCs) have drawn much attention as alternative energy conversion and storage devices owing to their high efficiency and environmental benignity. However, considering their high operating temperature involves unwanted chemical reactions, thermal stress, and high system costs it is essential to lower their operating temperature for commercial feasibility. At reduced temperature, on the other hand, the catalytic activity of oxygen reduction reactions (ORRs), oxygen evolution reactions (OERs), and oxygen ionic transport are diminished due to their thermally activated
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11

Baamer, Mazen A., Saad Alshahri, Ahmed A. Basfar, Mohammed Alsuhybani, and Alhanouf Alrwais. "Novel Polymer Composites for Lead-Free Shielding Applications." Polymers 16, no. 7 (2024): 1020. http://dx.doi.org/10.3390/polym16071020.

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Polymer nanocomposites have recently been introduced as lead-free shielding materials for use in medical and industrial applications. In this work, novel shielding materials were developed using low-density polyethylene (LDPE) mixed with four different filler materials. These four materials are cement, cement with iron oxide, cement with aluminum oxide, and cement with bismuth oxide. Different weight percentages were used including 5%, 15%, and 50% of the cement filler with LDPE. Furthermore, different weight percentages of different combinations of the filler materials were used including 2.5
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12

Ulyanov, Vladimir V., Mikhail M. Koshelev, Vladlena S. Kremlyova, and Sergey E. Kharchuk. "Investigations of regularities in the accumulation of hydrogen-reduced slags in circulation circuits with lead-containing coolants." Nuclear Energy and Technology 7, no. 3 (2021): 245–52. http://dx.doi.org/10.3897/nucet.7.74154.

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The paper presents a computational analysis of regularities in the accumulation of slags during the interaction of lead and lead-bismuth coolants with oxygen gas. Oxidation of lead-containing coolants will cause the formation of lead oxide, while the formation of bismuth oxide is unlikely. Dosed supply of oxidizing gas to lead-containing coolants makes it possible to oxidize, selectively, chromium and nickel to their oxides without the slag formation from solid lead oxide. Regularities were studied which are involved in the lead oxide formation during the interaction of lead-containing coolant
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13

Ulyanov, Vladimir V., Mikhail M. Koshelev, Vladlena S. Kremlyova, and Sergey E. Kharchuk. "Investigations of regularities in the accumulation of hydrogen-reduced slags in circulation circuits with lead-containing coolants." Nuclear Energy and Technology 7, no. (3) (2021): 245–52. https://doi.org/10.3897/nucet.7.74154.

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The paper presents a computational analysis of regularities in the accumulation of slags during the interaction of lead and lead-bismuth coolants with oxygen gas. Oxidation of lead-containing coolants will cause the formation of lead oxide, while the formation of bismuth oxide is unlikely. Dosed supply of oxidizing gas to lead-containing coolants makes it possible to oxidize, selectively, chromium and nickel to their oxides without the slag formation from solid lead oxide. Regularities were studied which are involved in the lead oxide formation during the interaction of lead-containing coolant
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14

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
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15

Astuti, Yayuk, Trie Nanda Mulyana, Brainy Happy Ana Tasiman, Adi Darmawan, and Hendri Widyandari. "Hydrazine-Fueled Solution Combustion Method: Fuel/Oxidizer Ratio Effects on Photocatalytic Performance of Bismuth Oxide." Bulletin of Chemical Reaction Engineering & Catalysis 18, no. 3 (2023): 539–47. http://dx.doi.org/10.9767/bcrec.19943.

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Bismuth oxide nanoparticles were synthesized through the solution combustion method with a variation of fuel: oxidizer (hydrazine: bismuth nitrate) ratios (ϕ) of ϕ<1, ϕ=1 (stoichiometrically balanced) and ϕ> 1. Bismuth oxide nanoparticles were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and UV-Visible Diffuse Reflectance Spectroscopy (UV-DRS). The FTIR spectra obtained implies that the bismuth oxide nanoparticles of the three ratios contain Bi-O-Bi and Bi-O groups indicating its successful formation. XRD di
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16

Kozlovskiy, Artem, Aibek Seitbayev, Sholpan Giniyatova та Daryn Borgekov. "Determination of variation of compositions of (1-х)ZnO-0.25Al2O3-0.25WO3-хBi2O3 glass-like ceramics on protective characteristics in gamma radiation shielding". International Journal of Mathematics and Physics 15, № 1 (2024): 68–76. http://dx.doi.org/10.26577/ijmph.2024v15i1a8.

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The work is devoted to the study of the effect of variation of the ratio of oxides in the composition of (1-х)ZnO-0.25Al2O3-0.25WO3-хBi2O3 glass-like ceramics on shielding characteristics when employed as materials to mitigate the adverse effects of gamma radiation with different energy. The primary incentive behind these investigations is to discover novel protective shielding materials that lack lead or its oxide forms yet possess high shielding efficiency. Additionally, the aim is to identify the most promising compositions for potential practical applications in shielding. During the studi
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17

Sudina, Lyudmila V., Sergey I. Kolesnikov, Tatiana V. Minnikova, Tigran A. Ter-Misakyants, Еlena N. Nevedomaya, and Kamil Sh Kazeev. "Estimation of Ecotoxicity of Bismuth by Catalase Activity Depending on the Chemical Compounds and Buffer Soils." UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, no. 2 (210) (June 28, 2021): 126–33. http://dx.doi.org/10.18522/1026-2237-2021-2-126-133.

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The results of studies of changes in the activity of catalase in ordinary chernozem, brown forest soil and sierosands under pollution with different of the bismuth chemical compounds: bismuth oxide, carbonate and nitrate are presented. It has been established that bismuth contamination of different types of soils reduces catalase activity, regardless of the chemical compounds. The toxicity of bismuth increases with an increase in the dose applied to the soil. Based on the chemical bismuth compounds, the average toxicity series for soils by catalase activity is as follows: bismuth nitrate (86)&
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18

Astuti, Yayuk, Siti Hartinah, Adi Darmawan, and Hendri Widiyandari. "Synthesis and characterization of bismuth oxide/commercial activated carbon composite for battery anode." Open Chemistry 20, no. 1 (2022): 1476–84. http://dx.doi.org/10.1515/chem-2022-0247.

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Abstract Bismuth oxide has been considered as a promising electrode material due to the high theoretical capacity, low cost, and non-toxic nature. However, its application has been limited by the low electrical conductivity. In this work, bismuth oxide/commercial activated carbon composite were successfully synthesized through hydrothermal method. Bismuth nitrate pentahydrate with concentrations of 8, 24, and 32 mmol were mixed with Na2SO4, NaOH, and commercial activated carbon. The mixture was then put into a hydrothermal reactor and heated at 110°C for 5 h. These composite materials can have
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19

Patil, S., and Vijaya Puri. "Study of Tabular Bismuth Oxide and Bismuth Oxide–Tin Oxide Mixed Thick Film." Advanced Science Letters 3, no. 2 (2010): 231–35. http://dx.doi.org/10.1166/asl.2010.1107.

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20

Stevens, K. J., B. Ingham, M. F. Toney, et al. "Structure of oxidized bismuth nanoclusters." Acta Crystallographica Section B Structural Science 63, no. 4 (2007): 569–76. http://dx.doi.org/10.1107/s0108768107024652.

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Synchrotron X-ray diffraction has determined that β-Bi2O3 is the dominant oxide phase covering hexagonal bismuth nanoclusters produced in an inert gas aggregation source. Simulated Debye–Scherrer patterns have indicated that the oxide is 20 ± 5 Å thick on average, at the surface of 320 ± 40 Å diameter clusters. A Williamson–Hall analysis of the peak broadening was used to measure the non-uniform strain in clusters. The oxidized clusters were in −0.11 ± 0.06% uniform compressive strain compared with other clusters without oxides detectable by X-ray diffraction which only have a small tensile un
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21

Autade, Vijay B., Kaustav Bhattacharjee, Ranjit S. Kate, et al. "Solid state engineering of Bi2S3/rGO nanostrips: an excellent electrode material for energy storage applications." RSC Advances 14, no. 18 (2024): 12313–22. http://dx.doi.org/10.1039/d4ra01304b.

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Herein, the study reported unique one-pot and scalable solid-state methodology to prepare bismuth sulphide (Bi2S3)-reduced graphene oxide (rGO) nanocomposites using bismuth oxide (Bi2O3), thiourea and graphene oxide (GO) for energy storage applications.
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22

You, Seong-Beom, Byeong Jun Kim, and Yong Nam Ahn. "Structural Influences on Lithium-Ion Transport in Bismuth Oxides: A Molecular Dynamics Approach." Materials 18, no. 10 (2025): 2287. https://doi.org/10.3390/ma18102287.

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This study investigates Li-ion diffusion characteristics in Li-contained and Li-free bismuth oxide crystals, aiming to explore their potential as solid electrolytes for next-generation lithium-ion batteries. Although bismuth oxide has been widely applied as a solid electrolyte in fuel cells, its suitability for Li-ion battery applications remains unexplored. Using molecular dynamics simulations, we analyzed the Li-ion diffusion behavior in two distinct Li-contained bismuth oxide crystals with layered and non-layered structures, as well as four Li-free bismuth oxide phases. It is demonstrated t
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23

Sayyed, Mohammed I., Gandham Lakshminarayana, Mustafa R. Kaçal, and Ferdi Akman. "Radiation protective characteristics of some selected tungstates." Radiochimica Acta 107, no. 4 (2019): 349–57. http://dx.doi.org/10.1515/ract-2018-3062.

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Abstract The mass attenuation coefficients (μ/ρ) of calcium tungstate, ammonium tungsten oxide, bismuth tungsten oxide, lithium tungstate, cadmium tungstate, magnesium tungstate, strontium tungsten oxide and sodium dodecatungstophosphate hydrate were measured at 14 photon energies in the energy range of 81–1333 keV using 22Na, 54Mn, 57Co, 60Co, 133Ba and 137Cs radioactive sources. The measured μ/ρ values were compared with those obtained from WinXCOM program and the differences between the experimental and theoretical values were very small. The bismuth tungsten oxide has the highest μ/ρ among
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24

Mitra, Priyanka, and B. Harihara Venkataraman. "Influence of excess bismuth oxide on the structural and dielectric characteristics of textured Bi4Ti3O12 ceramics." IOP Conference Series: Materials Science and Engineering 1248, no. 1 (2022): 012054. http://dx.doi.org/10.1088/1757-899x/1248/1/012054.

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Abstract Bismuth titanate (Bi4Ti3O12), an Aurivillius family of ferroelectric oxide, has been widely investigated due to its large remnant polarization, high Curie temperature, high dielectric constant and relatively low tangent for the application in information memory storage devices. In this work, polycrystalline bismuth titanate ceramics samples with different amounts of excess Bi2O3 (3 and 5 wt%) were prepared using a low temperature, cost-effective molten salt synthesis method. The structural, microstructural and dielectric properties depend on the addition of excess Bi2O3 and the sinter
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25

Jo, Seunghyun, and Kwang Sup Eom. "Effect of Bi Doping on the Kinetics of Nickel Oxides-Based Electrocatalyst in Alkaline Oxygen Evolution Reaction." ECS Meeting Abstracts MA2024-02, no. 28 (2024): 2138. https://doi.org/10.1149/ma2024-02282138mtgabs.

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As a generation process of hydrogen fuel, an alkaline water electrolysis is considered as one of the most promising pathway. The water electrolysis is able to divide into two half-cell reaction: hydrogen evolution reaction (HER) in cathode and oxygen evolution reaction (OER) in anode. However, high activation energy of OER is regarded as a major bottleneck for utilization of water electrolysis, therefore it is necessary to use an electrocatalyst to improve the reaction rate. Currently, commercially used electrocatalysts of OER is precious metal such as platinum (Pt), ruthenium (Ru), and iridiu
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26

Kinomura, Nobukazu, and Nobuhiro Kumada. "Preparation of bismuth oxides with mixed valence from hydrated sodium bismuth oxide." Materials Research Bulletin 30, no. 2 (1995): 129–34. http://dx.doi.org/10.1016/0025-5408(94)00123-5.

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27

Abdulbari, H. A., and F. L. W. Ming. "Drag Reduction Properties of Nanofluids in Microchannels." Journal of Engineering Research [TJER] 12, no. 2 (2015): 60. http://dx.doi.org/10.24200/tjer.vol12iss2pp60-67.

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An experimental investigation of the drag reduction (DR) individualities in different sized micro channels was carried out with nanopowder additives (NAs) (bismuth(III) oxide, iron(II/III) oxide, silica, and titanium(IV) oxide) water suspensions/fluids. The primary objective was to evaluate the effects of various concentrations of NAs with different microchannel sizes (50, 100, and 200 µm) on the pressure drop of a system in a single phase. A critical concentration was observed with all the NAs, above which increasing the concentration was not effective. Based on the experimental results, the
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28

Derrien, Gaelle, Monique Tillard, Laure Monconduit, and Claude Belin. "Potassium barium bismuth oxide." Acta Crystallographica Section C Crystal Structure Communications 56, no. 6 (2000): e232-e232. http://dx.doi.org/10.1107/s0108270100006855.

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29

Mima, T., Y. Takeuchi, S. Arai, K. Kishita, K. Kuroda, and H. Saka. "In Situ Transmission Electron Microscopy Observation of the Growth of Bismuth Oxide Whiskers." Microscopy and Microanalysis 14, no. 3 (2008): 267–73. http://dx.doi.org/10.1017/s1431927608080240.

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AbstractGrowth of bismuth oxide (most probably Bi2O3) was observed in situ in a transmission electron microscope. Bi liquid particles were dispersed on the substrates of diamond or SiO2. Introduction of oxygen up to ∼5 × 10−4 Pa resulted in formation of bismuth oxide (most probably Bi2O3) whiskers. The growth mechanism of the whisker was discussed in terms of a vapor-liquid-solid (VLS) mechanism. It is suggested that the liquid droplet of Bi acts as a physical catalyst for growth of bismuth oxide (most probably Bi2O3) whiskers.
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30

Zhang, Xiaojing, Xianglun Xie, Jianan Li, et al. "Type II Heterojunction Formed between {010} or {012} Facets Dominated Bismuth Vanadium Oxide and Carbon Nitride to Enhance the Photocatalytic Degradation of Tetracycline." International Journal of Environmental Research and Public Health 19, no. 22 (2022): 14770. http://dx.doi.org/10.3390/ijerph192214770.

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Both type II and Z schemes can explain the charge transfer behavior of the heterojunction structure well, but the type of heterojunction structure formed between bismuth vanadium oxide and carbon nitride still has not been clarified. Herein, we rationally prepared bismuth vanadium oxide with {010} and {012} facets predominantly and carbon nitride as a decoration to construct a core-shell structure with bismuth vanadium oxide wrapped in carbon nitride to ensure the same photocatalytic reaction interface. Through energy band establishment and radical species investigation, both {010} and {012} f
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31

Won-In, Krit, Sorapong Pongkrapan, and Pisutti Dararutana. "Eco-Glass Based on Thailand Quartz Sands and Bismuth Oxide." Materials Science Forum 695 (July 2011): 223–26. http://dx.doi.org/10.4028/www.scientific.net/msf.695.223.

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Ecological glass with non-toxic was fabricated in bismuth-bearing glass using mainly local quartz sands and various concentration of bismuth oxide. The specific gravity (SG), refractive index (RI), thermal expansion coefficient (CoE) and hardness (HV) were determined. It was found that the values of SG, RI and HV were increased linearly as the increasing of bismuth oxide, whiles that of CoE was decreased. This glass is environmentally friendly materials.
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32

Rajaee, Azimeh, Shi Wang, and Lingyun Zhao. "Bismuth-based nanoparticles as radiosensitizer in low and high dose rate brachytherapy." Polish Journal of Medical Physics and Engineering 25, no. 2 (2019): 79–85. http://dx.doi.org/10.2478/pjmpe-2019-0011.

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Abstract Background: Recently bismuth-based nanoparticles have attracted increasing attention as a dose amplification agent in radiation therapy due to high atomic number, high photoelectric absorption, low cost, and low toxicity. Objectives: This study aims to calculate physical aspects of dose enhancement of bismuth-based nanoparticles in the presence of brachytherapy source by Monte Carlo simulation and an analytical method for low mono-energy. Materials and methods: After simulation and validation brachytherapy sources (Iodine-125 and Ytterbium-169) by Monte Carlo code, bismuth-based nanop
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33

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
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34

Borisova, V. V., V. A. Kutvitsky, E. V. Mironova, I. A. Romanova, and O. I. Ostanina. "Bismuth-containing glassy reference materials for establishing the content of transition elements using luminescent-based methods." Reference materials 15, no. 1 (2019): 29–38. http://dx.doi.org/10.20915/2077-1177-2019-15-1-29-38.

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Modern express methods of analytical control are widely used for monitoring the quality of oxide materials. However, the possibilities of these methods are currently limited by the lack of versatile homogeneous reference materials (RMs). Such RMs can be produced most effectively by vitrification methods. In this connection, glassy RMs based on bismuthborate systems are of great interest. In the earlier research, bismuth-borate RMs were used for comparison purposes in determining the composition of complex oxide systems using the X-ray fluorescence method. This work considers issues associated
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35

Beneš, L., V. Rambousek, M. PŘedota, and J. Horák. "Interaction of zinc oxide with bismuth oxide." Journal of Materials Science 21, no. 9 (1986): 3345–47. http://dx.doi.org/10.1007/bf00553378.

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36

Park, Seon-Young, and A.-Young Sung. "Preparation and Properties of cosmetic hydrogel lenses containing bismuth oxide." K Beauty In Society 2, no. 2 (2022): 4–9. https://doi.org/10.71293/jkbs.2022.2.2.4.

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This study used lenses made using 2-hydroxyethyl methacrylate (HEMA), a basic material for hydrogel lenses, ethylene glycol dimethacrylate (EGDMA), and an initiator 2,2'-Azobis (2-methylpropionitrile) (AIBN). A combination of the hydrophilic additives N, N-Dimethylacrylamide (DMA), N-vinyl pyrrolidone (NVP), methacrylic acid (MA), and the nanomaterial Bismuth (III) oxide was added to prepare a Comparative group lens. As a result of measuring the change in the physical properties of the produced contact lens, the result was a water content of 38-50%, a refractive index of 1.413-1.435, and a ten
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Ю.М., ЮХИН, КОЛЕДОВА Е.С., ДАМИНОВ А.С., ТИМАКОВА Е.В., КУЗНЕЦОВ В.А. та ШЕИНА О.Д. "ПОЛУЧЕНИЕ ВИСМУТА И ЕГО СОЕДИНЕНИЙ ВЫСОКОЙ ЧИСТОТЫ". Химия в интересах устойчивого развития 32, № 5 (2024): 708–17. http://dx.doi.org/10.15372/khur2024604.

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Исследован процесс растворения металлического висмута в азотной кислоте и проведено сравнение экологически чистых способов получения азотнокислых растворов висмута, основанных на предварительном окислении висмута, а также на его растворении в присутствии карбамида или нитрата аммония. Установлено, что растворение висмута в присутствии нитрата аммония при молярном отношении нитрата аммония к висмуту, равном 1.5-3.5, и температуре 70±5 °С позволяет устранить выделение оксидов азота в газовую фазу и получить раствор с высокой концентрацией по висмуту. Показана целесообразность двухстадийной гидро
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38

Motakef Kazemi, Negar, and Masoumeh Yaqoubi. "Synthesis of Bismuth Oxide: Removal of benzene from waters by Bismuth Oxide Nanostructures." Analytical Methods in Environmental Chemistry Journal 2, no. 04 (2019): 5–14. http://dx.doi.org/10.24200/amecj.v2.i04.79.

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In this research, bismuth oxide (Bi2O3) nanostructures were prepared via chemical method at 90 °C for 3 h. the results samples were characterized by Fourier transform infrared (FTIR) for determination of functional groups, X-ray diffraction (XRD) for evaluation of crystal structure, dynamic light scattering (DLS), scanning electron microscope (SEM) for presentation of morphology and size, energy-dispersive X-ray spectroscopy (EDS) for determination of chemical composition, and diffuse reflection spectroscopy (DRS) for ultraviolet (UV) blocking. Also, the Bi2O3 nanostructures were used for benz
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39

Algethami, Merfat. "Bismuth/bismuth oxide-incorporated reduced graphene oxide nanocomposite: synthesis, characterisation, and photocatalytic activity." Materials Research Express 9, no. 2 (2022): 025001. http://dx.doi.org/10.1088/2053-1591/ac4ebb.

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Abstract This study loaded Bi/Bi2O3 on the surface of reduced graphene oxide (rGO) to perform a two-step facile synthesis of rGO@Bi/Bi2O3 as a bismuth-based nanocomposite. First, Bi/Bi2O3 nanocomposites were synthesised via a solvothermal process using Bi(NO3)3 5H2O as the Bi3+ precursor and dimethyl sulfoxide (DMSO) as the solvent. Second, we exfoliated rGO in water to functionalise Bi/Bi2O3 with a few layers of rGO. Obtained nanocomposites were characterised with scanning electron microscopy and X-ray diffraction. We also measured the nanocomposites’ photocatalytic activity using cationic dy
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40

Bloom, D. W., and S. W. S. McKeever. "Temperature Dependence of Drift Mobility in Bismuth Germanium Oxide and Bismuth Silicon Oxide." Materials Science Forum 239-241 (January 1997): 325–28. http://dx.doi.org/10.4028/www.scientific.net/msf.239-241.325.

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41

Just, D., and T. Takamori. "Thermally stimulated current and photorefractivity of bismuth silicon oxide and bismuth germanium oxide." Materials Science and Engineering: B 9, no. 4 (1991): 469–74. http://dx.doi.org/10.1016/0921-5107(91)90075-7.

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42

Varaprasad, Kokkarachedu, Koduri Ramam, G. Siva Mohan Reddy, and Rotimi Sadiku. "Development and characterization of nano-multifunctional materials for advanced applications." RSC Adv. 4, no. 104 (2014): 60363–70. http://dx.doi.org/10.1039/c4ra09980j.

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43

Daminov, Artem S., Ekaterina S. Koledova, Kseniya V. Mishchenko, and Yuri M. Yukhin. "Hydrolytic method for processing bismuth to obtain compounds." MATEC Web of Conferences 340 (2021): 01031. http://dx.doi.org/10.1051/matecconf/202134001031.

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The hydrolytic processing of metallic bismuth to obtain compounds was investigated by methods of chemical, X-ray diffraction analyses, thermogravimetric analyzes, as well as electron microscopy. The conditions for obtaining bismuth nitrate pentahydrate composition Bi(NO3)3∙5H2O, oxide, citrate of bismuth of composition BiС6Н5O7, bismuth-potassium-ammonium citrate and oxohydroxotribromophenolate of bismuth of the pharmacopoeial composition [Bi6O6(OH)2](C6H2Br3O)4 Xeroform are presented.
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44

Zhuk, Nadezhda A., Sergey V. Nekipelov, Olga V. Petrova, et al. "Synthesis, Phase Formation, and Raman Spectroscopy of Ni and Zn(Mg) Codoped Bismuth Stibate Pyrochlore." Chemistry 7, no. 4 (2025): 110. https://doi.org/10.3390/chemistry7040110.

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Complex antimony pyrochlores Bi2.7M0.46Ni0.70Sb2O10+Δ (M = Zn, Mg) were synthesized from oxide precursors, using the solid-state reaction method. For each composition variant, the pyrochlore phase formation process was studied during solid-state synthesis in the range of 500–1050 °C. The influence of zinc and magnesium on the phase formation process was established. The interaction of oxide precursors occurs at a temperature of 600 °C and higher, resulting in the formation of bismuth stibate (Bi3SbO7) as a binary impurity phase. Oxide precursors, including bismuth(III) and antimony(III,V) oxid
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Astuti, Yayuk, Prisca Putri Elesta, Didik Setyo Widodo, Hendri Widiyandari, and Ratna Balgis. "Hydrazine and Urea Fueled-Solution Combustion Method for Bi2O3 Synthesis: Characterization of Physicochemical Properties and Photocatalytic Activity." Bulletin of Chemical Reaction Engineering & Catalysis 15, no. 1 (2019): 104–11. http://dx.doi.org/10.9767/bcrec.15.1.5483.104-111.

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Bismuth oxide synthesis using solution combustion method fuelled by hydrazine and urea has been conducted. This study aims to examine the effect of the applied fuels, urea and hydrazine, on product characteristics and photocatalytic activity in degrading rhodamine B dye. Bismuth oxide synthesis was initiated by dissolving bismuth nitrate pentahydrate (Bi(NO3)3.5H2O) in a nitric acid solvent. Fuel was added and then stirred. The solution formed was heated at 300 ºC for 8 hours. The product obtained was then calcined at 700 ºC for 4 hours. Bismuth oxide synthesized with urea (BO1) and hydrazine
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46

Chu, Yen-Chang, Gang-Juan Lee, Chin-Yi Chen, et al. "Preparation of Bismuth Oxide Photocatalyst and Its Application in White-light LEDs." Journal of Nanomaterials 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/596324.

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Bismuth oxide photocatalysts were synthesized and coated on the front surface of phosphor-converted white light-emitting diodes to produce a safe and environmentally benign lighting source. Bismuth oxide photocatalyst powders were synthesized with a spray pyrolysis method at 500°C, 600°C, 700°C, and 800°C. Using the absorption spectrum in the blue and UV regions of the bismuth oxide photocatalysts, the blue light and UV leakage problems of phosphor-converted white LEDs can be significantly reduced. The experimental results showed that bismuth oxide photocatalyst synthesized at 700°C exhibited
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47

Lazarević, Z. Ž., B. D. Stojanović, and José Arana Varela. "Mechanochemical Synthesis of Bi4Ti3O12." Materials Science Forum 518 (July 2006): 125–30. http://dx.doi.org/10.4028/www.scientific.net/msf.518.125.

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Our efforts were directed to the preparation of bismuth titanate – Bi4Ti3O12 (BIT) by mechanically assisted synthesis. The mechanical activation was applied to prepare bismuth titanate, Bi4Ti3O12, from bismuth oxide, Bi2O3, and titanium oxide, TiO2 (in an anatase crystal form). Mechanochemical synthesis was performed in a planetary ball mill in air atmosphere. Bismuth titanate ceramics was obtained by sintering at 1000 oC. The formation of Bi4Ti3O12 in the sintered samples was confirmed by X-ray diffraction analysis. Scanning electron microscopy, SEM, was used to study the particle size and po
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48

Inaba, Katsuya, Ichiro Fujii, Kouichi Nakashima, et al. "Preparation of Grain-Oriented Ceramics with Bismuth Potassium Titanate-Barium Titanate and their Piezoelectric Properties." Key Engineering Materials 582 (September 2013): 80–83. http://dx.doi.org/10.4028/www.scientific.net/kem.582.80.

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Bismuth potassium titanate ((Bi1/2K1/2)TiO3: BKT) powder were prepared using bismuth oxide (Bi2O3), potassium hydrogen carbonate (KHCO3) and titanium oxide (TiO2) raw materials. Barium titanate (BaTiO3: BT) platelike particles oriented along [110] direction were used as template particles. Barium titanate-bismuth potassium titanate (BT-BKT) ceramics had a tetragonal phase at -100 °C. The main composition was fixed to BKT 30 molar% because the Curie temperature (TC) was well above 200 °C at BKT 30 molar%. The orientation of [110]-oriented BT-BKT ceramics (BKT 30 molar%) was 54.6 %.
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Puttaswamy, Manjunath, Marko Vehkamäki, Kaupo Kukli, et al. "Bismuth iron oxide thin films using atomic layer deposition of alternating bismuth oxide and iron oxide layers." Thin Solid Films 611 (July 2016): 78–87. http://dx.doi.org/10.1016/j.tsf.2016.05.006.

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50

S, Salprima Yudha, Morina Adfa, Swadexi Istiqphara, and Muhamad Alvin Reagen. "Bismuth Silicate/Silica-Titania Synthesis from In Situ Decomposition of Oil Palm Leaves as Silica Source." Science and Technology Indonesia 8, no. 3 (2023): 397–402. http://dx.doi.org/10.26554/sti.2023.8.3.397-402.

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In this work, bismuth silicate-titania has been synthesized in two stages by utilizing bismuth oxynitrate as an elemental source of bismuth, oil palm leaves (OPL) as a source of silica and titanium tetraisopropoxide (TTIP) as source of titania (TiO2). In the first stage, bismuth silicate/silica (Bi4Si3O12/SiO2) was formed, which occurs due to the in-situ decomposition of palm leaves and reacts directly with the bismuth precursor at high temperatures (900oC). The reaction could possibly occur through a solid-state reaction mechanism between bismuth oxide and silica or through a more complex mec
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