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Artykuły w czasopismach na temat „Molybdenum Dioxide TGA Analysis”

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Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Trivedi, Mahendra Kumar, Rama Mohan Tallapragada, Alice Branton, et al. "Analysis of Physical, Thermal, and Structural Properties of Biofield Energy Treated Molybdenum Dioxide." International Journal of Materials Science and Applications 4, no. 5 (2015): 354–59. https://doi.org/10.11648/j.ijmsa.20150405.21.

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Molybdenum dioxide (MoO2) is known for its catalytic activity toward reforming hydrocarbons. The objective of this study was to evaluate the effect of biofield energy treatment on physical, thermal, and structural properties in MoO2. The MoO2 powder sample was divided into two parts, one part was remained as untreated, called as control, while the other part was subjected to Mr. Trivedi’s biofield energy treatment and called as treated. Both control and treated samples were investigated using X-ray diffraction (XRD), thermogravimetric analysis (TGA), and Fourier transform infrared (FT-IR

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2

Trivedi, Mahendra Kumar, Rama Mohan Tallapragada, Alice Branton, et al. "Analysis of Physical, Thermal, and Structural Properties of Biofield Energy Treated Molybdenum Dioxide." International Journal of Materials Science and Applications 4, no. 5 (2015): 354–59. https://doi.org/10.5281/zenodo.192199.

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Molybdenum dioxide (MoO2) is known for its catalytic activity toward reforming hydrocarbons. The objective of this study was to evaluate the effect of biofield energy treatment on physical, thermal, and structural properties in MoO2. The MoO2 powder sample was divided into two parts, one part was remained as untreated, called as control, while the other part was subjected to Mr. Trivedi’s biofield energy treatment and called as treated. Both control and treated samples were investigated using X-ray diffraction (XRD), thermogravimetric analysis (TGA), and Fourier transform infrared (FT-IR

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3

Avilés-García, Osmín, Jaime Espino-Valencia, Rubí Romero-Romero, et al. "Enhanced Photocatalytic Activity of Titania by Co-Doping with Mo and W." Catalysts 8, no. 12 (2018): 631. http://dx.doi.org/10.3390/catal8120631.

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Various W and Mo co-doped titanium dioxide (TiO2) materials were obtained through the EISA (Evaporation-Induced Self-Assembly) method and then tested as photocatalysts in the degradation of 4-chlorophenol. The synthesized materials were characterized by thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy (RS), N2 physisorption, UV-vis diffuse reflectance spectroscopy (DRS), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). The results showed that the W-Mo-TiO2 catalysts have a high surfa

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4

Naouel, R., F. Touati, and N. Gharbi. "Control of the Morphology of Molybdenum Dioxide Nanoparticles." E-Journal of Chemistry 9, no. 1 (2012): 233–39. http://dx.doi.org/10.1155/2012/506572.

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Synthesis of MoO2nanoparticles with one-dimensional (1D) and spherical morphologies in aqueous solutions, through hydrothermal process was investigated. The materials were studied by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Infrared spectroscopy (FTIR) and thermal analysis (TG). It was found that the quantity of organic compound influenced the size and shape of the final product. The possible formation mechanism of MoO2microspheres and nanowires was also discussed. The conductivity of MoO2nanowires was explained by the presence of two

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5

Yuvaraj, Haldorai, Min Hee Woo, Eun Ju Park, Yeong-Soon Gal, and Kwon Taek Lim. "A Facile Synthesis of Poly(3-octylthiophene)-Titanium Dioxide Nanocomposite Particles in Supercritical CO2." Journal of Nanoscience and Nanotechnology 8, no. 9 (2008): 4743–46. http://dx.doi.org/10.1166/jnn.2008.ic60.

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Poly(3-octylthiophene) (P3OT)-titanium dioxide (TiO2) nanocomposite powder where TiO2 was embedded with homogeneous dispersion was synthesized by in-situ chemical oxidative polymerization of 3-octylthiophene in the presence of TiO2 nanoparticles in supercritical carbon dioxide (scCO2), using ferric chloride as the oxidant. The synthesized materials could be obtained as dry powder upon venting of CO2 after the polymerization. The composites were subsequently characterized by FT-IR spectroscopy, transmission electron microscopy (TEM), X-ray diffraction studies (XRD), thermogravimetric analysis (

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6

Shaabani, Ahmad, Zeinab Hezarkhani, and Elham Badali. "Wool supported manganese dioxide nano-scale dispersion: a biopolymer based catalyst for the aerobic oxidation of organic compounds." RSC Advances 5, no. 76 (2015): 61759–67. http://dx.doi.org/10.1039/c5ra10522f.

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A wool supported manganese dioxide nano-scale dispersion was synthesized by soaking wool in a potassium permanganate solution and characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM).

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7

Ito, Yasuyuki, Ikuo Ushiki, Yoshiyuki Sato, and Hiroshi Inomata. "Practical Reuse of Activated Carbon in the Exhaust Facility of Semiconductor Production Factory with Supercritical Carbon Dioxide Regeneration." MATEC Web of Conferences 333 (2021): 08004. http://dx.doi.org/10.1051/matecconf/202133308004.

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An possible reason why the activated carbon used in the exhaust facility of real semiconductor production factory could not be regenerated by scCO2 regeneration was estimated to be attributable to its high boiling point adsorbates which showed a peak in TGA (Thermogravimetric analysis) curve at 400-900°C. This study was conducted to experimentally verify the above insight by using TGA analysis and scCO2 regeneration for the real samples with different loads from the factory. The experimental results showed that high boiling point ratio defined by TGA analysis was less than 4.0% in case of the

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8

Ito, Yasuyuki, Ikuo Ushiki, Yoshiyuki Sato, and Hiroshi Inomata. "Practical Reuse of Activated Carbon in the Exhaust Facility of Semiconductor Production Factory with Supercritical Carbon Dioxide Regeneration." MATEC Web of Conferences 333 (2021): 08004. http://dx.doi.org/10.1051/matecconf/202133308004.

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An possible reason why the activated carbon used in the exhaust facility of real semiconductor production factory could not be regenerated by scCO2 regeneration was estimated to be attributable to its high boiling point adsorbates which showed a peak in TGA (Thermogravimetric analysis) curve at 400-900°C. This study was conducted to experimentally verify the above insight by using TGA analysis and scCO2 regeneration for the real samples with different loads from the factory. The experimental results showed that high boiling point ratio defined by TGA analysis was less than 4.0% in case of the

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9

AVCI ÖZBEK, Hülya. "Molybdenum–Vanadium Oxide Clusters: Syntheses, Structures and Antibacterial Properties." Journal of the Institute of Science and Technology 14, no. 1 (2023): 356–62. http://dx.doi.org/10.21597/jist.1347906.

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The design and synthesis of polyoxometalates (POMs), a type of inorganic compounds, are of great interest due to their interesting structural properties as well as their extensive theoretical and practical applications in catalysis, electrical conductivity, magnetism, optics and medicine. Therefore, in this study two molybdovanadates [Cu(phen)2]3[Mo6V2O26]·4H2O and [Cu(bpy)2]3[Mo6V2O26]·4H2O have been prepared by the reaction of the [Mo6V2O26]6- anion with Cu(CH3COO)2 and 1,10-phenanthroline/2,2'-bipyridine in aqueous medium; characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Nu

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10

Shin, Hyunjung, Yuhu Wang, Uma Sampathkumaran, Mark R. De Guire, Arthur H. Heuer, and Chaim N. Sukenik. "Pyrolysis of self-assembled organic monolayers on oxide substrates." Journal of Materials Research 14, no. 5 (1999): 2116–23. http://dx.doi.org/10.1557/jmr.1999.0286.

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The pyrolysis of siloxy-anchored, organic self-assembled monolayers (SAMs) on oxide substrates [titanium dioxide powder; hydrolyzed silicon dioxide on (100) silicon] was studied using x-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and mass spectroscopy (MS). Pyrolysis in air began on heating at 200 °C and was complete by 400 °C for both octadecyltrichlorosilane (OTS) and C16-thioacetate (TA) SAMs, as observed in TGA of SAM-coated TiO2 powders, and in XPS studies of TA-SAM-coated TiO2 powders and Si wafers after various heat treatments. In low-oxygen environments, pyr

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11

Sheybani, K., M. H. Paydar, M. H. Shariat, and N. Setoudeh. "An investigation on aluminothermic reduction of MoO3 in domestic microwave oven." Journal of Mining and Metallurgy, Section B: Metallurgy, no. 00 (2020): 25. http://dx.doi.org/10.2298/jmmb190312025s.

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In the present study, feasibility of aluminothermic reduction of molybdenum oxide by microwave oven was studied. Furthermore, the effect of compaction pressure, the amount of used Al and CaO, as flux on aluminothermic reduction of molybdenum oxide were investigated. Thermodynamic analysis of the corresponding reaction indicated that, aluminothermic reduction of MoO3 is possible at all temperatures. XRD patterns and thermodynamic investigation of reaction products indicated that aluminothermic reduction of molybdenum oxide progressed through the formation of intermediate phases such as Al2 (MoO

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12

Sayyad, Ramejabi Jahangir, and Sharda R. Gadale. "SYNTHESIS, CHARACTERIZATION AND PHOTOCATALYTIC ACTIVITY OF NANOCRYSTALLINE LANTHANUM DOPED MOLYBDENUM OXIDE." Journal of Advanced Scientific Research 13, no. 01 (2022): 153–61. http://dx.doi.org/10.55218/jasr.202213116.

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Organic dyes effluents are a foremost source of environmental pollution and hence its removal has become an important area of research these days. A series of different concentrations of Lanthanum- Molybdenum Oxide catalysts, LMO (1%, 5%, 10%, 15% and 20wt.%) were prepared by a sol gel method and calcined at 500°C. Thus, synthesized LMO catalysts were characterized by Powder X-ray diffraction analysis (XRD), Flame Emission scanning electron microscopy (FESEM,) Energy-dispersed X-ray analysis (EDX), RAMAN Spectroscopy and Thermo-gravimetric analysis (TGA). The photocatalytic properties of LMO n

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13

Mihalinec, Josipa, Matea Pajski, Pascal Guillo, et al. "Alcohol Oxidation Assisted by Molybdenum Hydrazonato Catalysts Employing Hydroperoxide Oxidants." Catalysts 11, no. 8 (2021): 881. http://dx.doi.org/10.3390/catal11080881.

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Molybdenum(VI) catalysts were obtained from methanol or acetonitrile by the reaction of [MoO2(C5H7O2)2] and isonicotinoyl- or nicotinoyl-based aroylhydrazones. Reactions in methanol resulted in the formation of the mononuclear complexes [MoO2(L1–4)(MeOH)] (1a–4a), while the ones in acetonitrile provided polynuclear complexes [MoO2(L1–4)]n (1–4). Crystals of polynuclear compound, [MoO2(L3)]n∙H2O (3∙H2O), suitable for X-ray diffraction analysis were obtained by the solvothermal procedure at 110 °C. Complexes were characterized by infrared spectroscopy (IR-ATR), nuclear magnetic resonance (NMR),

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14

Onwubu, Stanley C., Mokgadi Ursula Mokgobole, Phumlane Selby Mdluli, and Thabang Hendrica Mokhothu. "Assessing the antibacterial properties of eggshell-titanium powder." South African Dental Journal 77, no. 08 (2022): 483–88. http://dx.doi.org/10.17159/2519-0105/2022/v77no8a5.

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The global distribution of oral diseases caused by bacterial and the severity of their consequences constitute a pandemic condition.The present paper reports on the antibacterial properties of a modified eggshell and titanium dioxide using the mechanochemical method. EB@TiO2 was modified and characterized using X-raydiffraction (XRD) while the degradation condition was studied using Thermogravimetric analysis (TGA).The inhibitory properties of EB@TiO2at differentconcentrations (2:1; 3:1 and 4: 1) against both Grampositive (E. coli) and negative bacterial (B. Cereus)strain were studied the usin

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15

Mrkonja, Silvija, Edi Topić, Mirna Mandarić, Dominique Agustin, and Jana Pisk. "Efficient Molybdenum Hydrazonato Epoxidation Catalysts Operating under Green Chemistry Conditions: Water vs. Decane Competition." Catalysts 11, no. 7 (2021): 756. http://dx.doi.org/10.3390/catal11070756.

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Molybdenum compounds containing benzaldehyde-based hydrazones were obtained. The reaction in MeOH resulted with monomeric Mo complexes, [MoO2(L)(MeOH)], while the reaction in dichloromethane (DCM) provided oligomeric complexes, [MoO2(L)]n. The solid-state structures of the obtained compounds were investigated through Infrared Spectroscopy - Attenuated Total Reflection (IR-ATR), Thermogravimetric analysis (TGA), and via X-ray diffraction. The prepared molybdenum species were employed as cyclooctene epoxidation catalysts. TBHP (tert-butylhydroperoxide) in water and TBHP in decane were employed a

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16

Hunagund, Shirajahammad M., Pradeep Chavan, Vani R. Desai, L. R. Naik, Jagadish S. Kadadevarmath, and Ashok H. Sidarai. "Influence of Fe³⁺ Ion Substitution on Thermal and Dielectric Properties of Titanium Dioxide." International Letters of Chemistry, Physics and Astronomy 67 (June 2016): 9–13. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.67.9.

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Thermal and dielectric characteristics of Fe2O3doped TiO2(FDT) nanopowder is investigated. Formation of FDT was prepared using the formula [1-x] TiO2+ [x] Fe2O3by solid state reaction method. The Surface morphology was studied using atomic force microscopy (AFM) technique; it reveals the average particle size in the range of 180 to 200nm. FT-IR analysis reveals weak transmittance bands between 1020 to 1650 cm-1and 2800 to 3500 cm-1which shows a gradual decrease in peak intensities with an increase of Fe concentration. Thermal stability was assessed by Thermogravimetric analysis (TGA). Results

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17

Dahham, Omar S., R. Hamzah, N. Z. Noriman, et al. "The Influences of Zirconium Dioxide on ENR-25/ZrO2 Composites: FTIR and TGA Analysis." Journal of Physics: Conference Series 1019 (June 2018): 012055. http://dx.doi.org/10.1088/1742-6596/1019/1/012055.

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18

Ahmed, Ahmed N., Aysar T. Jarulah, Ban A. Ahmed Altabakh, Abdullah M. Ahmed, and Hamin J. Mohammed. "Preparation and Characterization of Metal Carbide Zeolite Composite Catalyst." Journal of Petroleum Research and Studies 13, no. 4 (2023): 115–30. http://dx.doi.org/10.52716/jprs.v13i4.737.

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The object of present work is to synthesize metal carbide zeolite composite catalysts and discusses their characteristics. Metal carbide with zeolite composite was prepared in the present research. Molybdenum carbide was used as a metal carbide which was prepared by solid-state method with Ammonium molybdate tetrahydrate and commercial activated carbon as raw materials. Ion exchanged method was used to add platinum to the HY zeolite. Modified Y zeolite was prepared by using ion exchanged method by mixing the HY zeolite with Cerium nitrate. After prepared Mo2C, PtHY zeolite, and CeY a formation

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19

Palacio, Luz Amparo, Carlos Saldarriaga, and Eduardo Lombardo. "Catalytic behavior of Zn(II) and Co(II) molypdates." Revista Facultad de Ingeniería Universidad de Antioquia, no. 29 (December 8, 2003): 24–29. http://dx.doi.org/10.17533/udea.redin.326570.

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Isotypic molybdates of Zn(Il) and Co(II) were hydro thermally prepared and the solid products characterized by XRD, TGA, AA, SEM, CHN analysis and N2 adsorption. The materials are layered type and exhibit structures formed by Zn and Co octahedrons and molybdenum tetrahedrons with one vertex unconnected which protrudes into the interlayer space. The catalytic behavior was tested by means of the reaction of cyclohexene hydroxylation with hydrogen peroxide. ZnMo shows high selectivity to 2-cyclohexene-1-ol while CoMo shows lower activity than the blank.

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20

Kumar Trivedi, Mahendra. "Analysis of Physical, Thermal, and Structural Properties of Biofield Energy Treated Molybdenum Dioxide." International Journal of Materials Science and Applications 4, no. 5 (2015): 354. http://dx.doi.org/10.11648/j.ijmsa.20150405.21.

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Chinh, Nguyen Thuy, Tran Thi Mai, Dao Phi Hung, et al. "Characteristics of organic titanate modified titanium dioxide nanoparticles and its dispersibility in acrylic emulsion coating." Vietnam Journal of Chemistry 60, S1 (2022): 116–24. http://dx.doi.org/10.1002/vjch.202200080.

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AbstractThis work presents the characteristics of rutile TiO2 nanoparticles modified by isopropyl tri[di(octyl) phosphato] titanate (KR‐12) with the content of 3, 5 and 10 wt.% as compared to TiO2 nanoparticles weight. The infrared (IR) spectroscopy, scanning electron microscopy (SEM), dynamic light scattering (DLS), and thermal gravimetry analysis (TGA) methods were used to evaluate the surface modification efficiency of the TiO2 nanoparticles with KR‐12. The TGA and IR analysis results indicated that the organic coupling agent (KR‐12) was grafted to the surface of the nanoparticles. The TiO2

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22

Chien, Wen Chen, Shyue Ming Jang, and Yu Cheng Lin. "Synthesis of Titania in a Spinning Disk Reactor." Advanced Materials Research 148-149 (October 2010): 1264–67. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.1264.

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In this study, titania powders were prepared from 0.02M titanium tetrachloride and 0.08M sodium hydroxide in a high gravity rotary reactor. The preparation was combined with a precipitation, washing/centrifugation, hydrothermal and drying steps. The prepared titania powders were characterized by TGA, SEM, TEM, FTIR, and UV-vis analysis。TGA curves show that the titania yield was found to increase with rising hydrothermal time. TEM analysis show that the prepared titania crystalline in solution has a flake-like shape with a primary size 5~15nm and narrow size distribution. SEM images show that t

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23

Koczorowski, Tomasz, Barbara Wicher, Rafal Krakowiak, et al. "Photocatalytic Activity of Sulfanyl Porphyrazine/Titanium Dioxide Nanocomposites in Degradation of Organic Pollutants." Materials 15, no. 20 (2022): 7264. http://dx.doi.org/10.3390/ma15207264.

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Magnesium(II) sulfanyl porphyrazine with peripheral morpholinethoxy substituents was embedded on the surface of titanium(IV) dioxide nanoparticles. The obtained nanocomposites were characterized with the use of particle size and distribution (NTA analysis), electron microscopy (SEM), thermal analysis (TGA), FTIR–ATR spectroscopy, and X-ray powder diffraction (XRD). The measured particle size of the obtained material was 327.4 ± 15.5 nm. Analysis with XRD showed no visible changes in the crystallinity of the material after deposition of porphyrazine on the TiO2 surface. However, SEM images reve

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24

Ashaq, Hussain, N. Sheikh H., and L. Kalsotra B. "Synthesis and characterization of mixed ligand complexes of molybdenum(VI)." Journal of Indian Chemical Society Vol. 83, Jun 2006 (2006): 531–35. https://doi.org/10.5281/zenodo.5819443.

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Department of Chemistry, University of Jammu, Jammu-180 006, Jammu & Kashmir, India. <em>E-mail</em> : hnsheikh@rediffmail.com <em>Manuscript received 10 May 2005, revised 14 December 2005, accepted 1 March 2006</em> The mixed ligand complexes of molyhdenum(Vl) of the type, [MoO<sub>2</sub>(acac)<sub>2</sub>L] where L = morpholinomethyl urea (MMU), morpholinomethyl thiourea (MMTU), piperidinomethyl urea (PMU), pipcridinomcthyl thiourea (PMTU), pJrrolidinomethyl urea (PyMU) and pyrrolidinomethyl thiourea (PyMTU) have been prepared by the reaction of [MoO<sub>2</sub>(acac)<sub>2</sub>] with

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Onyszko, Magdalena, Karolina Urbas, Malgorzata Aleksandrzak, and Ewa Mijowska. "Reduced graphene oxide and inorganic nanoparticles composites – synthesis and characterization." Polish Journal of Chemical Technology 17, no. 4 (2015): 95–103. http://dx.doi.org/10.1515/pjct-2015-0074.

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Abstract Graphene – novel 2D material, which possesses variety of fascinating properties, can be considered as a convenient support material for the nanoparticles. In this work various methods of synthesis of reduced graphene oxide with metal or metal oxide nanoparticles will be presented. The hydrothermal approach for deposition of platinum, palladium and zirconium dioxide nanoparticles in ethylene glycol/water solution was applied. Here, platinum/reduced graphene oxide (Pt/RGO), palladium/reduced graphene oxide (Pd/RGO) and zirconium dioxide/reduced graphene oxide (ZrO2/RGO) nanocomposites w

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Jahantigh, Farhad, and Mehdi Nazirzadeh. "Synthesis and Characterization of TiO2Nanoparticles with Polycarbonate and Investigation of its Mechanical Properties." International Journal of Nanoscience 16, no. 05n06 (2017): 1750012. http://dx.doi.org/10.1142/s0219581x17500120.

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In this project, nanocomposite films were prepared with different Titanium dioxide (TiO2) percentages. Properties of polycarbonate (PC) and PC–TiO2nanocomposite films were studied by X-ray diffraction (XRD) analysis and Fourier transform infrared (FTIR) spectroscopy. The structure of samples was studied by XRD. The mechanical properties of PC–TiO2nanocomposite films were investigated by conducting tensile tests and hardness measurements. Thermal stability of the nanocomposites was studied by thermogravimetric analysis (TGA) method. The elastic modulus of the composite increased with increasing

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Vogel, Christian, Shigeaki Morita, Harumi Sato, Isao Noda, Yukihiro Ozaki, and Heinz W. Siesler. "Thermal Degradation of Poly(3-hydroxybutyrate) and Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) in Nitrogen and Oxygen Studied by Thermogravimetric–Fourier Transform Infrared Spectroscopy." Applied Spectroscopy 61, no. 7 (2007): 755–64. http://dx.doi.org/10.1366/000370207781393370.

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The thermal degradation behavior of poly(3-hydroxybutyrate) (PHB) and poly(3-hydroxybutyrate- co-3-hydroxyhexanoate) (P(HB- co-HHx), HHx = 12 mol%) has been studied under different environmental conditions by thermogravimetric analysis (TGA) Fourier transform infrared (FT-IR) spectroscopy. It is reported that at higher temperature (>400 °C) carbon dioxide and propene are formed from the decomposition product crotonic acid in a nitrogen atmosphere, whereas in an oxygen atmosphere propene oxidizes in a further step to carbon dioxide, carbon monoxide and hydrogen. It was also found that PHB an

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Maurin, Salamanca-Guzmán, Enrique Licea-Fonsec Yordy, Echavarría-Isaza Adriana, Faro Arnaldo, and Amparo Palacio-Santos Luz. "Oxidative dehydrogenation of propane with cobalt, tungsten and molybdenum based materials." Revista Facultad de Ingeniería –redin-, no. 84 (September 25, 2017): 97–104. https://doi.org/10.17533/udea.redin.n84a11.

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Oxidative dehydrogenation of propane is a reliable alternative for olefins production. This paper presents the results obtained on oxidative dehydrogenation of propane by using two materials based on cobalt, tungsten, and molybdenum. The materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), temperature programmed reduction (TPR), thermogravimetric analysis (TGA), and differential thermal analysis (DTA). The CoMoϕy material was calcined at 623 K, transforming itself to β-CoMoO4 phase (CoMoϕ623), the same phase is observed when the material

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Sonakshi, Saini, Sharma Sakshi, Khangembam Maya, and Singh Vinod. "Structural analysis of the chemical vapour deposition grown molybdenum disulphide nanofilms for multifaceted applications." Indian Journal of Science and Technology 13, no. 29 (2020): 2973–80. https://doi.org/10.17485/IJST/v13i29.1215.

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Abstract <strong>Background/Objectives:</strong> In recent years, the research on molybdenum disulphide (MoS2) has gained significance because of its unique properties and ease of incorporation in hybrid structures, which makes it one of the most suitable materials for devices and multifaceted <strong>Applications.</strong> The objective of the study is to synthesize MoS2 nanofilms and then to characterize them through X-ray diffraction (XRD) technique. Methods: In this study, MoS2 nanofilms are synthesized on silicon dioxide substrates by the thermal Chemical Vapour Deposition

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Amir, Norlaili, Faiz Ahmad, Muhammad Hazwan Abdul Halim, et al. "Synergistic Effects of Titanium Dioxide and Zinc Borate on Thermal Degradation and Water Resistance of Epoxy Based Intumescent Fire Retardant Coatings." Key Engineering Materials 740 (June 2017): 41–47. http://dx.doi.org/10.4028/www.scientific.net/kem.740.41.

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Abstract. This studies discuss the synergistic effects of titanium dioxide (TiO2) and zinc borate on thermal stability and water resistance of intumescent fire retardant coatings. TiO2 in association with a traditional intumescent flame retardant system which contains ammonium polyphosphate/expandable graphite/melamine/ zinc borate (APP–EG–MEL-ZB) was introduced to epoxy based coatings to improve the fire resistance. The influences of TiO2 on the properties of the coatings were investigated in detail by using Bunsen burner fire test, thermogravimetric analysis (TGA), scanning electron microsco

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Ramimoghadam, Donya, Samira Bagheri, and Sharifah Bee Abd Hamid. "Biotemplated Synthesis of Anatase Titanium Dioxide Nanoparticles via Lignocellulosic Waste Material." BioMed Research International 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/205636.

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Anatase titanium dioxide nanoparticles (TiO2-NPs) were synthesized by sol-gel method using rice straw as a soft biotemplate. Rice straw, as a lignocellulosic waste material, is a biomass feedstock which is globally produced in high rate and could be utilized in an innovative approach to manufacture a value-added product. Rice straw as a reliable biotemplate has been used in the sol-gel method to synthesize ultrasmall sizes of TiO2-NPs with high potential application in photocatalysis. The physicochemical properties of titanium dioxide nanoparticles were investigated by a number of techniques s

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Faridi-Majidi, Reza, Naser Sharifi-Sanjani, and Mohammad Madani. "Synthesis of Calcium Carbonate-Polyethylene Oxide Hybrid Nanofibers Through In-Situ Electrospinning." Journal of Nanoscience and Nanotechnology 8, no. 5 (2008): 2627–31. http://dx.doi.org/10.1166/jnn.2008.18295.

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In this work, calcium carbonate nanoparticles-polyethylene oxide nanofibers as organic–inorganic hybrid were prepared via in-situ electrospinning. Thus, electrospinning of polyethylene oxide solution saturated with calcium hydroxide was carried out in gaseous carbon dioxide atmosphere. Transmission electron microscopy (TEM) showed that calcium carbonate (CaCO3) nanoparticles were formed on the produced nanofibers of 200–300 nm in diameter. The existence of the formed CaCO3 was also proved by thermogravimetric analysis (TGA) via loss of gaseous CO2 related to the decomposition of CaCO3 at about

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Qaira, I. S., Maiyesni, F. Rindiyantono, et al. "Mesoporous titania as sorbent for ⁹⁹Mo/^99mTc generators column with low specific activity molybdenum-99 for nuclear medicine application." Journal of Physics: Conference Series 2828, no. 1 (2024): 012045. http://dx.doi.org/10.1088/1742-6596/2828/1/012045.

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Abstract The 99Mo/99mTc generator is a chromatography column system that can be eluted to obtain technetium-99m (99mTc) for nuclear medicine applications in the hospital. Mesoporous titania is developed for the Mo adsorbent of a 99Mo/99mTc generator column employing low specific activity 99Mo produced by nuclear reactor irradiation of natural molybdenum. A symmetric triblock copolymer of P123 was used as a template to create mesoporous titania using the sol-gel process.. The molar ratio of the reactant (titanium tetraisopropoxide (TTIP) and titanium chloride (TiCl4)) was applied with ratios 1:

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Hunagund, Shirajahammad M., Pradeep Chavan, Vani R. Desai, L. R. Naik, Jagadish S. Kadadevarmath, and Ashok H. Sidarai. "Influence of Fe<sup>3+</sup> Ion Substitution on Thermal and Dielectric Properties of Titanium Dioxide." International Letters of Chemistry, Physics and Astronomy 67 (June 30, 2016): 9–13. http://dx.doi.org/10.56431/p-9z005n.

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Thermal and dielectric characteristics of Fe2O3 doped TiO2 (FDT) nanopowder is investigated. Formation of FDT was prepared using the formula [1-x] TiO2 + [x] Fe2O3 by solid state reaction method. The Surface morphology was studied using atomic force microscopy (AFM) technique; it reveals the average particle size in the range of 180 to 200nm. FT-IR analysis reveals weak transmittance bands between 1020 to 1650 cm-1 and 2800 to 3500 cm-1 which shows a gradual decrease in peak intensities with an increase of Fe concentration. Thermal stability was assessed by Thermogravimetric analysis (TGA). Re

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Rajasekar, M., K. Muthu, A. Aditya Prasad, R. Agilandeshwari, and SP Meenakshisundaram. "Synthesis, growth, structure and characterization of molybdenum zinc thiourea complex crystals." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 71, no. 3 (2015): 285–92. http://dx.doi.org/10.1107/s2052520615005922.

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Single crystals of molybdenum-incorporated tris(thiourea)zinc(II) sulfate (MoZTS) are grown by the slow evaporation solution growth technique. Crystal composition as determined by single-crystal X-ray diffraction analysis reveals that it belongs to the orthorhombic system with space groupPca21and cell parametersa= 11.153 (2),b= 7.7691 (14),c= 15.408 (3) Å,V= 1335.14 (4) Å3andZ= 4. The surface morphological changes are studied by scanning electron microscopy. The vibrational patterns in FT–IR are used to identify the functional group and TGA/DTA (thermogravimetric analysis/differential thermal

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Nyakuma, Bemgba B., Samuel-Soma M. Ajibade, Victor B. Adebayo, et al. "Carbon dioxide-assisted Torrefaction of Maize Cobs by Thermogravimetry: Product Yield and Energy Recovery Potentials." Physics and Chemistry of Solid State 23, no. 1 (2022): 16–24. http://dx.doi.org/10.15330/pcss.23.1.16-24.

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The objective of this study is to examine the potential product yields and energy recovery of maize cobs (MC) through carbon dioxide-assisted torrefaction using thermogravimetric analysis (TGA). The CO2-assisted torrefaction of MC was performed from 240 °C to 300 °C (Δ 30 °C) for the residence time of 30 minutes based on the selected non-isothermal/isothermal heating program of the TGA. Furthermore, the physicochemical, microstructure and mineral characteristics of MC were examined. The results showed that the CO2-torrefaction of MC resulted in a mass loss (ML) ranging from 18.45% to 55.17%, w

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Topić, Edi, Vladimir Damjanović, Katarina Pičuljan, and Mirta Rubčić. "Dinuclear Molybdenum(VI) Complexes Based on Flexible Succinyl and Adipoyl Dihydrazones." Crystals 14, no. 2 (2024): 135. http://dx.doi.org/10.3390/cryst14020135.

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A series of molybdenum(VI) complexes with aryl-functionalized alkyl dihydrazones was prepared by the reaction of [MoO2(acac)2] and the appropriate dihydrazone in methanol. Their solid-state structures were elucidated via single-crystal X-ray diffraction (SC-XRD) and Fourier-transform infra-red (FTIR) spectroscopy, while the thermal stability of compounds was inspected by combined thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) experiments. The behaviour of complexes in DMSO-d6 solution was explored by nuclear magnetic resonance (NMR). The relevant data show that al

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Aldashukurova, G., A. V. Mironenko, Z. A. Mansurov, et al. "Carbon Dioxide Conversion of Methane into Synthesis-Gas on Glass Cloth Catalysts." Eurasian Chemico-Technological Journal 12, no. 2 (2010): 97. http://dx.doi.org/10.18321/ectj31.

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The catalytic activity of nanostructurized low per cent (1%) Co-Ni catalysts on the basis of glass cloth, obtained by “solution combustion” (SC) method, in the reaction of carbon dioxide of methane was studied. The physico - chemical characteristics of the obtained species were studied by the methods of X-ray phase analysis, SEM, TEM, TGA. It is found that SC method allows to obtain an active component on the surface of glass cloth in the form of nanopaticles. A high activity of the catalyst, the active component of which is cobalt, is revealed; the decrease in Co concentration in the matrix o

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Qian, Yi, Shaojie Zhou, and Xilei Chen. "Synergistic flame retardant effect between nano-silicon dioxide and layered double hydroxides in ethylene vinyl acetate composites." Journal of Thermoplastic Composite Materials 31, no. 10 (2017): 1295–309. http://dx.doi.org/10.1177/0892705717738287.

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Layered double hydroxides (LDHs) were synthesized by a coprecipitation method. The synergistic flame retardant effect of nano-silicon dioxide (nano-SiO2) on ethylene vinyl acetate (EVA)/LDHs composites was studied using limiting oxygen index (LOI), cone calorimeter test (CCT), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). Results showed that the LOI values of the EVA/LDHs/nano-SiO2 composites were basically higher than that of the EVA/LDHs composite, and the EVA composite with 48% LDHs and 2% nano-SiO2 reached an LOI value of up to 31.2%. The CCT results indicate th

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Swathi N, Sandhiya D, Rajeshkumar S, and Lakshmi T. "Green synthesis of titanium dioxide nanoparticles using Cassia fistula and its antibacterial activity." International Journal of Research in Pharmaceutical Sciences 10, no. 2 (2019): 856–60. http://dx.doi.org/10.26452/ijrps.v10i2.261.

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Green synthesis of titanium oxide nanoparticles has more advantages when compared with the chemical method. This work reports a green synthesis of titanium dioxide nanoparticles (TiO2NPs) by the herbal plant extracts of Cassia fistula. Then the green synthesized NPs were characterized by UV-Vis spectroscopy, X-ray Diffraction (XRD), Fourier transforms infra-Red spectroscopy (FT-IR), atomic force microscopy (AFM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA). The result of the SEM image shows that the nanoparticles are spherical in shape. The antibacterial activity was d

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Liu, Ying, Liutao Yang, Chunping Ma, and Yingzhe Zhang. "Thermal Behavior of Sweet Potato Starch by Non-Isothermal Thermogravimetric Analysis." Materials 12, no. 5 (2019): 699. http://dx.doi.org/10.3390/ma12050699.

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In this study, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) methods were used to study the structure, the thermal degradation kinetics, and the thermogram of sweet potato starch, respectively. The thermal decomposition kinetics of sweet potato starch was examined within different heating rates in a nitrogen atmosphere. Different models of kinetic analysis were used to calculate the activation energies using the thermogravimetric data of the thermal degradation process. The activation energies got from Kissinger, Flynn–Wall–Ozawa, and Ša

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Valarini Junior, Osvaldo, Carlos Eduardo Barão, Graciette Matiolli, Everton Fernando Zanoelo, Lúcio Cardozo-Filho та Flávio Faria de Moraes. "Complexation and physicochemical analysis of hydrophobic molecules of methyl jasmonate with Hydroxypropyl-β–Cyclodextrin". Acta Scientiarum. Technology 41, № 1 (2019): 39611. http://dx.doi.org/10.4025/actascitechnol.v41i1.39611.

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In the present study, methyl jasmonate (MeJa) was included in 2-hydroxypropyl-β-cyclodextrin (HPβCD) by grinding (M1), freeze drying (M2), co-precipitation + freeze drying (M3) and by applying supercritical carbon dioxide (M4). FT-IR/ATR, FT-Raman, TGA, and DSC analyses of the complexation products confirmed that MeJa/HPβCD complexes were formed by the four different examined methods of inclusion. FT-IR/ATR supported the inclusion, mainly based on the reduction of intensity of absorption at the wavelength of maximum absorbance of free MeJa (1733 cm-1), which was 27.69 au before inclusion. From

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Huang, Hui, and Zhong Cheng Guo. "Preparation and Characterization of Conductive Polyaniline/Cerium Dioxide Composites." Materials Science Forum 663-665 (November 2010): 686–89. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.686.

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Conductive polyaniline/cerium dioxide (PANI/CeO2) composites have been synthesized by in-situ polymerization of aniline in the presence of CeO2 nanoparticles. The structure and thermal stability of obtained composites were characterized by Fourier-transform infrared spectra (FTIR), Fourier-transform Raman spectra (FT-Raman), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The results showed that PANI and CeO2 nanoparticles were not simply blended, and a strong interaction existed at the interface of CeO2 and PANI. In the PANI/CeO2 composite, the degree crystallinity of PANI incre

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Mushinskiy, Alexander, Aliya Saudabaeva, Tatyana Vasilyeva, Sergey Fomin, and Alexander Panfilov. "Analysis of morphobiological response of potato plants to treatment with silicon dioxide and molybdenum nanoparticles." BIO Web of Conferences 160 (2025): 01025. https://doi.org/10.1051/bioconf/202516001025.

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The article presents the results of the effect of treating tubers and above-ground parts of the Kuzovok potato variety with SiO2 and Mo nanoparticles on morphometric parameters and biochemical composition. It was found that treating seed potato tubers with SiO2 0.18, Mo 0.045 g/kg increased germination energy on the 6th day regardless of the nanoparticle ratio (18 %, 13 % and 10 %, respectively). The concentration of SiO2 0.18 g/kg and Mo 0.045 g/kg excludes long-term pre-planting light germination (vernalization) for 15-20 days. Biochemical analysis of potato tubers treated with Mo nanopartic

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KHAZIPOV, M. R., A. A. SAGDEEV, G. S. SAGDEEVA, and D. N. LATYPOV. "COMPARATIVE ANALYSIS OF ACTIVITY AND SELECTIVITY OF LD-145 CATALYST REGENERATED BY SUPERCRITICAL FLUID EXTRACTION PROCESS USING SUPERCRITICAL PROPANE/BUTANE MIXTURE AND SUPERCRITICAL CARBON DIOXIDE AS AN EXTRACTANT." Herald of Technological University 27, no. 8 (2024): 78–81. https://doi.org/10.55421/1998-7072_2024_27_8_78.

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A comparative analysis of activity and selectivity of nickel-molybdenum catalyst LD-14 5samples regenerated by supercritical fluid extraction process using supercritical propane/butane mixture and supercritical carbon dioxide as an extractant was carried out. The activity and selectivity of the catalysts were evaluated by steady-state method in a 200 ml autoclave. The process was carried out in hydrogen medium at a temperature of 573 K and a pressure of 3.0 MPa. The products obtained during the reactions were identified on an Agilent chromatography-mass spectrometer with a quadrupole mass anal

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Valtsifer, Igor V., Yan Huo, Valery V. Zamashchikov, et al. "Synthesis of Hydrophobic Nanosized Silicon Dioxide with a Spherical Particle Shape and Its Application in Fire-Extinguishing Powder Compositions Based on Struvite." Nanomaterials 13, no. 7 (2023): 1186. http://dx.doi.org/10.3390/nano13071186.

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Textural and morphological features of hydrophobic silicon dioxide, obtained by the hydrolysis of tetraethoxysilane in an ammonia medium followed by modification of a spherical SiO2 particles surface with a hydrophobic polymethylhydrosiloxane, were studied in this work. The size of silicon dioxide particles was controlled during preparation based on the Stöber process by variation of the amount of water (mol) in relation to other components. The ratio of components, synthesis time and amount of the hydrophobizing agent were determined to obtain superhydrophobic monodisperse silicon dioxide wit

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Pisk, Jana, Mia Šušković, Edi Topić, Dominique Agustin, Nenad Judaš, and Luka Pavić. "Molybdenum Complexes Derived from 2-Hydroxy-5-Nitrobenzaldehyde and Benzhydrazide as Potential Oxidation Catalysts and Semiconductors." International Journal of Molecular Sciences 25, no. 9 (2024): 4859. http://dx.doi.org/10.3390/ijms25094859.

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This study aimed to synthesize molybdenum complexes coordinated with an aroyl hydrazone-type ligand (H2L), which was generated through the condensation of 2-hydroxy-5-nitrobenzaldehyde with benzhydrazide. The synthesis yielded two types of mononuclear complexes, specifically [MoO2(L)(MeOH)] and [MoO2(L)(H2O)], as well as a bipyridine-bridged dinuclear complex, [(MoO2(L))2(4,4’-bpy)]. Those entities were thoroughly characterized using a suite of analytical techniques, including attenuated total reflectance infrared spectroscopy (IR-ATR), elemental analysis (EA), thermogravimetric analysis (TGA)

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Ullah, Rizwan, Mehtab Khan, Rozina Khattak, Nadia Khan, Muhammad Sufaid Khan, and Yaser A. El-Badry. "Synthesis, Characterization and Evaluation of Supercapacitive Response of Dodecylbenzenesulphonic Acid (DBSA) Doped Polypyrrole/Zirconium Dioxide Composites." Polymers 13, no. 22 (2021): 4035. http://dx.doi.org/10.3390/polym13224035.

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An in-situ chemical oxidative method was used to effectively synthesize a promising supercapacitor material based on PPy/ZrO2 composites. The synthesized materials were characterized by different analytical techniques, such as UV/visible (UV/Vis) spectroscopy, Fourier-transform infra-red spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The inclusion of ZrO2 into the PPy matrix was verified by vibrational spectra and structural analyses. The (TGA) results showed that incorporating ZrO2 into the polymeric matrix improved its

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Ponnambalam, Nirmal, Chinnaraju K, and Chithra S. "The hydration behaviour of blended cements incorporating sugarcane bagasse ash and limestone." Cement Wapno Beton 29, no. 4 (2025): 285–301. https://doi.org/10.32047/cwb.2024.29.4.3.

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The utilization of supplementary cementitious material [SCMs] as a partial substitution of cement is one of the most effective way to lower carbon-dioxide emissions in the cement production. Although previous research on the use of sugarcane bagasse ash [SBA] and limestone as SCMs as a partial substitution of cement has been reported. However, there is little research on their combined use in cement. The impact of SBA and limestone on the hardening and hydration property in blended cements were examined by testing properties of fresh and hardened mortars supplemented with TGA and XRD analysis.

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Brella M., Taabouche A., Gharbi B., et al. "Comparison of Thin Films of Titanium Dioxide Deposited by Sputtering and Sol-Gel Methods for Waveguiding Applications." Semiconductors 56, no. 1 (2022): 111. http://dx.doi.org/10.21883/sc.2022.01.53121.9552a.

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In this work, TiO2 thin films were deposited onto glass substrate by two different techniques: sol-gel dip-coating (SG) and reactive DC magnetron sputtering (Sput). The prepared samples have been characterized by means of micro-Raman, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) measurements, scanning electron microscopy (SEM), UV-Visible spectrophotometry, and M-Lines spectroscopy (MLS). The micro-Raman results showed an amorphous TiO2-SG phase and the vibrational mode of TiO2-Sput is anatase phase. DSC-TGA analysis was used to investigate the thermal properties o

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