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Journal articles on the topic 'XRD of Molybdenum Dioxide Powder'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

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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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/10.11648/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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3

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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4

Trotta, Richard, Felicia Tolea, Mihaela Valeanu, Lucian Diamandescu, Agnieszka Grabias, and Monica Sorescu. "Structural, Magnetic and Hyperfine Properties of Molybdenum Dioxide-Hematite Mixed Oxide Nanostructures." MRS Advances 3, no. 47-48 (2018): 2887–92. http://dx.doi.org/10.1557/adv.2018.420.

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ABSTRACTMoO2-Fe2O3 nanoparticle system was successfully synthesized by mechanochemical activation of MoO2 and α-Fe2O3 equimolar mixtures for 0-12 hours of ball milling time. The study aims at exploring the formation of magnetic oxide semiconductors at the nanoscale. X-ray powder diffraction (XRD), Mössbauer spectroscopy and magnetic measurements were used to study the phase evolution of MoO2-Fe2O3 nanoparticle system under the mechanochemical activation process. The Mössbauer studies showed that the spectrum of the mechanochemically activated composites evolved from a sextet for hematite to se

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Liu, Lingna, Yi Hou, Xiuzhao Yin, Fang Zhang, and Zifei Peng. "Preparation and investigation of co-doped VO2 powders." Functional Materials Letters 12, no. 02 (2019): 1950015. http://dx.doi.org/10.1142/s1793604719500152.

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In this paper, tungsten-and molybdenum-doped vanadium dioxide (VO[Formula: see text] powders were prepared by hydrothermal reaction using vanadium pentoxide (V2O[Formula: see text], H2O2, white tungstic acid (WPTA) and sodium molybdate (Na2MoO[Formula: see text] as raw materials. The microstructure and composition of VO2 powders were characterized by means of XRD, XPS, DSC and FT-IR. We made a preliminary study on the thermal-induced phase transition properties of powders. The experimental results show that the co-doped samples are monoclinic rutile. Tungsten and molybdenum atoms exist in the

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6

Inpan, Ungkana, Pimpan Leangtanom, Pusit Pookmanee, Sukon Phanichphant, and Viruntachar Kruefu. "Synthesis of Molybdenum Trioxide: Structure Properties and Sensing Film Preparation." Applied Mechanics and Materials 879 (March 2018): 62–67. http://dx.doi.org/10.4028/www.scientific.net/amm.879.62.

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In this research, molybdenum trioxide (MoO3) nanoflakes were synthesized by a simple and low cost hydrothermal method for gas sensing application. Sodium molybdate (Na2MoO4·2H2O) was used as the precursor. The powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). After hydrothermal process, the powders were showed amorphous phase. However, after annealing process the MoO3 was observed as particles having the orthorhombic phase. The average particle sizes of MoO3 nanoflakes were about 80 nm. The morphologies, cross se

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7

Hamza, Zahraa A., Jamal J. Dawood, and Murtadha Abbas Jabbar. "Ag/Mo Doping for Enhanced Photocatalytic Activity of Titanium (IV) Dioxide during Fuel Desulphurization." Molecules 29, no. 19 (2024): 4603. http://dx.doi.org/10.3390/molecules29194603.

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Regarding photocatalytic oxidative desulphurization (PODS), titanium oxide (TiO2) is a promising contender as a catalyst due to its photocatalytic prowess and long-term performance in desulphurization applications. This work demonstrates the effectiveness of double-doping TiO2 in silver (Ag) and molybdenum (Mo) for use as a novel catalyst in the desulphurization of light-cut hydrocarbons. FESEM, EDS, and AFM were used to characterize the morphology, doping concentration, surface features, grain size, and grain surface area of the Ag/Mo powder. On the other hand, XRD, FTIR spectroscopy, UV-Vis,

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8

Subbian, V., H. Sandeep, K. A. Jayasheel Kumar, et al. "Dry Sliding Wear Behavior of Copper Matrix Composites Enhanced with TiO2 and MoS2 Hybrids." Advances in Materials Science and Engineering 2024 (January 16, 2024): 1–8. http://dx.doi.org/10.1155/2024/4384178.

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The paper deals with the properties of copper-based composites. Copper is contributing to the field of automobiles and aerospace industries. The tribological properties of copper are not found to be satisfactory, which may be attributed to the support of producing copper matrix composites with extensive investigations into their properties. Coper-based hybrid composites were fabricated by reinforcing titanium dioxide (TiO2) and molybdenum disulphide (MoS2) to enhance the wear and mechanical properties of copper composites. Three specimens were prepared by powder metallurgy process with the des

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Chung, Chan-Yu, Ying-Chung Chen, Yu-Cheng Chen, Kuo-Sheng Kao, and Yu-Chen Chang. "Fabrication of a 3.5-GHz Solidly Mounted Resonator by Using an AlScN Piezoelectric Thin Film." Coatings 11, no. 10 (2021): 1151. http://dx.doi.org/10.3390/coatings11101151.

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In this study, a 3.5-GHz solidly mounted resonator (SMR) was developed by doping scandium in aluminum nitride to form AlScN as the piezoelectric thin film. Molybdenum (Mo) of 449 nm thickness and silicon dioxide (SiO2) of 371 nm thickness were used as the high and low acoustic impedance films, respectively, which were alternately stacked on a silicon substrate to form a Bragg reflector. Then, an alloy target with atomic ratio of 15% Sc was adopted to deposit the piezoelectric AlScN thin film on the Bragg reflector, using a radio frequency magnetron sputtering system. The characteristics of the

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10

Lee, Jong Hoon, and Kun-Jae Lee. "Characterization of Compacted and Pressureless Sintered Parts for Molybdenum Oxide Powder according to Hydrogen Reduction Temperature." Journal of Powder Materials 31, no. 4 (2024): 336–41. http://dx.doi.org/10.4150/jpm.2024.00241.

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Molybdenum, valued for its high melting point and exceptional physical and chemical properties, is studied in diverse fields such as electronics, petrochemicals, and aviation. Among molybdenum oxides, molybdenum dioxide stands out for its higher electrical conductivity than other transition metal oxides due to its structural characteristics, exhibiting metallic properties. It is applied as pellets to gas sensors, semiconductors, and secondary batteries for its properties. Thus, research on molybdenum dioxide compaction and pressureless sintering is necessary, yet research on pressureless sinte

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Sheng, Yan Wei, Zhi Meng Guo, and Jun Jie Hao. "Characterization of Spherical Molybdenum Powders Prepared by RF Plasma Processing." Advanced Materials Research 482-484 (February 2012): 2563–67. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.2563.

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Spherical molybdenum powders were synthesized by (RF) plasma with irregular molybdenum powders. The powder characteristics and spheroidization efficiency of the feeding rate for obtain the spherical molybdenum powders were studied. The phase composition and morphological properties of the powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM). As a result, the fine spherical powders composed of pure molybdenum with favorable dispersity and its surface became smooth. The spheroidization efficiency of synthesized powders was almost 100 % at feeding rate of 5g/m

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Wang, Yuan Rui, Guo Jun Qiang, and Feng Juan Liu. "Research of Preparation and Ultraviolet Shielding for Nanometer Powder of Tin Dioxide Coated with Zinc Oxide." Advanced Materials Research 496 (March 2012): 207–10. http://dx.doi.org/10.4028/www.scientific.net/amr.496.207.

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The preparation of tin dioxide coated with zinc oxide nanometer powder by factional homogeneous precipitation method is reported in this paper. The diameter of prepared nanometer powder is 32nm. UV shielding , XRD, SEM and EDS of prepared nanometer powder have been investigated. The results show that tin dioxide coated with zinc oxide nanometer powder has excellent UV-shielding performance , and the UV shielding characteristic is better than single tin dioxide or zinc oxide used.

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Yu, Bo, Xingyu Liu, Shufeng Wu, et al. "Study on Novel SCR Catalysts for Denitration of High Concentrated Nitrogen Oxides and Their Reaction Mechanisms." Catalysts 14, no. 7 (2024): 406. http://dx.doi.org/10.3390/catal14070406.

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With the rapid development of industrialization, the emission of nitrogen oxides (NOx) has become a global environmental issue. Uranium is the primary fuel used in nuclear power generation. However, the production of uranium, typically based on the uranyl nitrate method, usually generates large amounts of nitrogen oxides, particularly NO2, with concentrations in the exhaust gas exceeding 10,000 ppm. High concentrations of nitrogen dioxide are also produced during silver electrolysis processing and the treatment of waste electrolyte solutions. Traditional V-W/TiO2 NH3-SCR catalysts typically ex

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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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15

Li, Xiao Jing, Guan Jun Qiao, and Jin Ren Ni. "Effects of Substrates Made of Noncrystal and Polycrystal on Photocatalytic Degradation of Basic Crystal Violet." Advanced Materials Research 356-360 (October 2011): 574–78. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.574.

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Nanometer titanium dioxide films supported on glass, quartz, molybdenum, and aluminum were prepared by sol-gel method. The loaded titanium dioxide films were characterized by atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and photocatalytic degradation of aqueous crystal violet. The titanium dioxide films supported on different substrates were all composed of polycrystalline nanoparticles, which belonged to single-phase anatase, and displayed different morphology after sintering at 773 K for 1 h. Some elements in the substrate made of noncrystal

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16

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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17

Hu, Kun Hong, Xian Guo Hu, Xiao Jun Sun, He Feng Jing, and Song Zhan. "Synthesis and Characterization of Nanosize Molybdenum Disulfide Particles by Quick Homogeneous Precipitation Method." Key Engineering Materials 353-358 (September 2007): 2107–10. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2107.

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Molybdenum sulfide nanoparticles were prepared via quick homogeneous precipitation method (QHPM) by the reaction between Na2MoO4 and CH3CSNH2 in the presence of sulfuric acid at 80 oC. The as-synthesized molybdenum sulfide particles were studied by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM). The results showed that the as-synthesized molybdenum sulfide was amorphous MoS3 nanoparticles with an average size of 40 nm. The resultant amorphous MoS3 nanoparticles were then calcined under hydrogen gas flow at a

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18

Guo, Dong Bo, Yan Ping Wang, Xiao Chao Zhang, Jia Wang, and Yi Min Wang. "Synthesis of Titania Microshperes with Controllable Diameter Under Solvothermal Conditions." Advanced Materials Research 476-478 (February 2012): 1678–81. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.1678.

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Bead-structured titanium dioxide microspheres were successfully prepared by a facile one-step solvothermal method using diblock copolymers poly(ethylene oxide)-block-polystyene (PEO-b-PS) as the structure-directing agent. The products were characterized by scanning electron microscopy, thermogravimetic analysis and X-ray powder diffraction (XRD) technique. The XRD patterns show that the products synthesized with low content of HCl are anatase titanium dioxide and the products synthesized with low content of HCl are rulite titanium dioxide.

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Li, Ji Wen, Yan Hua Ma, Fang Fang Gong, Guo Shang Zhang, Liu Jie Xu, and Shi Zhong Wei. "The Preparation Technique of Nanometer Molybdenum Trioxide by Hydrothermal Synthesis." Applied Mechanics and Materials 117-119 (October 2011): 807–10. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.807.

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The technique of hydrothermal synthesis is used to prepare nanometer molybdenum trioxide through controlling the parameters such as the acidification condition, the reaction temperature, the reaction time and so on. The technique is under high temperature and high pressure by water as the solvent. Synthesized molybdenum trioxide powder is characterized by XRD, SEM, and HRTEM. The optimal reaction time is 40h, the optimum reaction temperature is 170°C, and the optimum pH value is 1.0. The results indicate that powder has an ultrafine particle size, high purity, and narrow size distribution, goo

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Adarsh, Kumar Pandey. "HYDROTHERMAL SYNTHESIS AND CHARACTERIZATION OF MOLYBDENUM DISULFIDE NANOSHEETS." International Journal of Education & Applied Sciences Research 12, no. 1 (2025): 01–08. https://doi.org/10.5281/zenodo.15420875.

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<em>This paper reports the hydrothermal synthesis of molybdenum disulfide (MoS₂) nanosheets. The few-layered nanosheets have a potential due to their two-dimensional structure and electronic properties, making them good candidates for various applications, including nanofiltration membranes, energy storage, and sensing. A simple hydrothermal synthesis method has been used to prepare these nanosheets, involving the reaction of molybdenum and sulfur sources at higher temperatures. To know the synthesized nanosheets, we have used powder X-ray diffraction (XRD), Raman spectroscopy, Fourier-transfo

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An, Vladimir, Yuri Irtegov, and Charles de Izarra. "Study of Tribological Properties of Nanolamellar WS2and MoS2as Additives to Lubricants." Journal of Nanomaterials 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/865839.

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This work was aimed at studying the tribological properties of nanolamellar tungsten and molybdenum disulfides produced from nanosized W and Mo nanopowders by self-propagating high-temperature synthesis. The prepared WS2and MoS2powders were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), and differential thermal analysis (DTA). For tribological tests, oil-based lubricants added with nanolamellar tungsten and molybdenum disulfides were prepared. The tribological tests show that the friction coefficient of the nanolamellar powders is lower than that of commercial powder(

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An, Gao Jun, Chun Hua Xiong, Chang Bo Lu, and Zhao Jun Chen. "Synthesis of Porous Molybdenum Disulfide Materials with High Specific Surface Area Using Sodium Chloride as the Template." Advanced Materials Research 217-218 (March 2011): 1569–73. http://dx.doi.org/10.4028/www.scientific.net/amr.217-218.1569.

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One novel, simple and convenient synthetic approach has been proposed to prepare the porous molybdenum disulfide materials by utilizing ammonium tetrathiomolybdate as the precursor and sodium chloride as the template. The as-synthesized products were characterized by X-ray powder Diffraction (XRD), Low-temperature N2 Adsorption (BET method), and Scanning Electron Microscopy (SEM). The characterization results reveal that the as-synthesized molybdenum disulfide material has high specific surface area (253.5 m2/g).

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Haifeng, Wang, Chen Xiaoliang, Zhao Pingyuan, et al. "Preparation of New Nano-MnO2 and Its Molybdenum Adsorption in Manganese Sulfate Solution." Nanoscience and Nanotechnology Letters 12, no. 9 (2020): 1070–78. http://dx.doi.org/10.1166/nnl.2020.3210.

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Manganese sulfate solution was in this study oxidized, using H2O2 as oxidant, to obtain new Nano-MnO2 in situ. The characterization of new MnO2 was carried out by XRD, SEM, FT-IR and BET. The effect of new manganese dioxide adsorpting molybdenum ion in manganese sulfate solution was also studied. Results showed that the main crystal form of the new MnO2 was γ type, and there was agglomeration of nanospheres with 200∼300 nm diameter from the microscopic morphology, which had abundant surface hydroxyl groups, and its specific surface area was as high as 146 m2/g. MnO2 addition was 1.0 g under op

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Yan, Shao Feng, and Xiao Hang Xiong. "Nanometer Titanium Dioxide Powder Preparation and its Performance." Applied Mechanics and Materials 130-134 (October 2011): 1258–61. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1258.

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F-doped TiO2 by hydrothermal synthesis method is prepared in this paper. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), infra-red (FT-IR) and diffuse reflectance spectroscopy (UV-vis). The photocatalytic performances of the samples were estimated by degrading Rhodamine B. which indicates that the reaction of photocatalytic degradation of Rhodamine B follows the zero order kinetic law. The photocatalytic performances are increased by F-doped. And F optimum doping dosage is 2.0%. After calcination at 500°C, the photocatalytic performance of the sam

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Pookmanee, Pusit, Tarika Kuntatun, Wiyong Kangwansupamonkon, and Sukon Phanichphant. "Titanium Dioxide Powder Prepared by a Low Temperature Hydrothermal Method." Advanced Materials Research 93-94 (January 2010): 627–30. http://dx.doi.org/10.4028/www.scientific.net/amr.93-94.627.

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Titanium dioxide powder was prepared by a low temperature hydrothermal method. Titanium isopropoxide, ammonium hydroxide and nitric acid were used as the starting precursors. The mixed solution with final pH of 1 was treated in the autoclave hydrothermal at 80-100 °C for 2-4h. The phase of titanium dioxide powder was studied by X-ray diffraction (XRD). Anatase and rutile structure were obtained at 80 °C for 2-4h without calcination step. Anatase structure was obtained at 100 °C for 2-4h without calcination step. The morphology of titanium dioxide powder was investigated by scanning electron mi

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Yang, Chao, Fang Wang, Shi Bin Li, et al. "Effect of Reaction Time on Surface Nano-Structure of TiN Oxide Nanofilm by Hydrothermal Method." Key Engineering Materials 814 (July 2019): 58–63. http://dx.doi.org/10.4028/www.scientific.net/kem.814.58.

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Dye-sensitized solar cells have better development prospects than silicon cells, and the main structural components of nanoporous semiconductor films are particularly important. In this experimental study, we used tin dioxide film and investigated the effect of preparing this film on dye-sensitized solar cells under different conditions. Furthermore, SnO2 powder was prepared through hydrothermal method, and an experiment was conducted through a controlled variable method. The properties of the obtained tin dioxide powder were characterized by SEM, 3D ultradepth microscopy, and XRD. An XRD peak

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Pookmanee, Pusit, Hathaithip Ninsonti, Supaporn Sangsrichan, Wiyong Kangwansupamonkon, and Sukon Phanichphant. "Photocatalytic Degradation of Geosmin by Titanium Dioxide Powder Synthesized by the Hydrothermal Route." Advanced Materials Research 93-94 (January 2010): 161–64. http://dx.doi.org/10.4028/www.scientific.net/amr.93-94.161.

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Titanium dioxide powder was synthesized by the hydrothermal route with the starting precursors as titanium isopropoxide, ammonium hydroxide and nitric acid. The final of pH value of mixed solution was 1 and treated in the hydrothermal PTFE vessel at 80-100 °C for 3h. The phase of titanium dioxide was characterized by X-ray diffractometer (XRD). The morphology of titanium dioxide was investigated by scanning electron microscope (SEM). The chemical composition of titanium dioxide was examined by energy dispersive X-ray spectrophotometer (EDXS). The photocatalytic degradation of geosmin by titani

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Liu, Xiaoping, Kuaishe Wang, Qiang Chen, et al. "Controllable Preparation of Spherical Molybdenum Nano-Powders by One-Step Reduction of APM in Radio Frequency Hydrogen Plasma." Materials 15, no. 6 (2022): 2019. http://dx.doi.org/10.3390/ma15062019.

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Spherical molybdenum nano-powders were in-situ ultrafast synthesized from ammonium paramolybdate (APM) raw materials in a one-step reduction method by radio frequency (RF) hydrogen plasma. Due to the extreme conditions of the RF plasma torch such as its high temperature and large temperature gradient, the injected raw APM powder was quickly gasified and then reduced into nano-sized metal molybdenum (Mo) powder. The influences of APM powder delivery rate and H2 concentration on the properties of the obtained powders were investigated. Field-emission scanning electron microscope (FESEM), transmi

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Guo, Tie Ming, Chang Song Han, Jian Gang Jia, Ying Fu, Zhi Hui, and Li Qun Wang. "A Study of 5%Mo-Cu Nanocomposite Prepared by SHS Route." Advanced Materials Research 675 (March 2013): 231–34. http://dx.doi.org/10.4028/www.scientific.net/amr.675.231.

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Thermodynamic calculations indicate that molybdenum particles reinforced copper-matrix composite can be fabricated in CuO-Al-MoO3 powder system. Thermit reaction and self-propagation high-temperature synthesis (SHS) were applied to prepare samples. Then the phases, structure morphologies and properties were studied through the instruments of XRD, SEM and microhardness tester. The results show that nanocrystals are formed in Cu matrix and molybdenum particles are dispersive distributed in Cu matrix. The microhardness of 5﹪Mo-Cu nanocomposite is 110HV，and the relative electric conductivity is 58

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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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Gavrilova, Natalia, Maria Myachina, Victor Nazarov, and Valery Skudin. "Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles." Nanomaterials 11, no. 4 (2021): 873. http://dx.doi.org/10.3390/nano11040873.

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In recent years, much attention has been paid to the development of a new flexible and variable method for molybdenum carbide (Mo2C) synthesis. This work reports the applicability of nano-size clusters of molybdenum blue to molybdenum carbide production by thermal treatment of molybdenum blue xerogels in an inert atmosphere. The method developed made it possible to vary the type (glucose, hydroquinone) and content of the organic reducing agent (molar ratio R/Mo). The effect of these parameters on the phase composition and specific surface area of molybdenum carbides and their catalytic activit

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Koroteev, V. O., A. V. Okotrub, Y. V. Shubin, and L. G. Bulusheva. "Formation of Mo₂S₃ Layers on the Surface of Graphitic Platelets." Key Engineering Materials 508 (March 2012): 56–60. http://dx.doi.org/10.4028/www.scientific.net/kem.508.56.

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The Powder Mixture of Thermally Exfoliated Graphite (TEG) and Amorphous Molybdenum (VI) Sulfide MoS3Has Been Annealed in Vacuum at 723, 1073, and 1273 K. The Obtained Samples Were Examined Using Transmission Electron Microscopy (TEM), X-Ray Diffraction (XRD), and Raman Spectroscopy. XRD and Raman Spectroscopy Detected that the Main Product of MoS3Annealing Is MoS2Nanoparticles. TEM Images Showed the Formation of a Continuous Coating on the Surface of TEG Platelets at 1273 K and Fourier Analysis of the High Resolution TEM Image Revealed that this Coating Corresponds to the Mo2S3Layers.

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RAMEZANALIZADEH, H., and S. HESHMATI-MANESH. "MECHANOCHEMICAL REDUCTION OF MoO3 POWDER BY Al AND Si TO SYNTHESIZE NANOCRYSTALLINE MoSi2." International Journal of Modern Physics: Conference Series 05 (January 2012): 119–26. http://dx.doi.org/10.1142/s2010194512001924.

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In this study, mechanical alloying was used to produce MoSi 2 powder directly from molybdenum trioxide. Mixture of MoO 3, Si and Al powders were exposed to high mechanical activation in a planetary ball mill. The ball to powder mass ratio was constant at 33:1 and the rotation speed (cup speed) was 290 rpm during the milling operations. Phase compositions and structural evolutions during milling were investigated by X-ray diffraction analysis. The morphology of the mechanically alloyed powders was evaluated with scanning electron microscope (SEM). From XRD results, it was observed that within 3

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Göynük, Tansu, İshak Emre Ömür, Metehan Erdogan, and Ishak Karakaya. "(Digital Presentation) Electroless Deposition of Oxidation Resistant High-Temperature Silicide Coatings on Molybdenum and Tzm Alloy Using Molten Salt." ECS Meeting Abstracts MA2022-01, no. 22 (2022): 1124. http://dx.doi.org/10.1149/ma2022-01221124mtgabs.

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Molybdenum is one of the refractory metals which has high melting point, 2620oC, and good mechanical properties. Unfortunately, oxidation resistance of molybdenum is not satisfactory for certain applications which involves high temperatures; therefore, an oxidation resistant coating is necessary. Molybdenum di-silicide (MoSi2) was coated on pure molybdenum and TZM alloy to increase oxidation resistance at high temperatures by electroless molten salt method. A molten salt solution containing NaCl, KCl and NaF was used to apply coating at temperatures above 600oC. Silicon powder and Na2SiF6 were

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Jansanthea, Pongthep, Natkritta Boonprakob, Jaruwan Treenattip, Pusit Pookmanee, and Sukon Phanichphant. "Photocatalytic Degradation of Methylene Blue and Methyl Orange over TiO₂ Powder Synthesized via the Solvothermal Method." Applied Mechanics and Materials 749 (April 2015): 51–55. http://dx.doi.org/10.4028/www.scientific.net/amm.749.51.

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Titanium dioxide (TiO2) powder was synthesized via the solvothermal method. Titanium isopropoxide (C12H28O4Ti), ammonium hydroxide (NH4OH) and nitric acid (HNO3) were used as the starting materials. The mixed solution was diluted with ethanol (C2H5OH) and heated at 100°C for 5h in a Teflon–lined stainless steel autoclave vessel. The phase transition of TiO2 powder was studied by X–ray diffraction (XRD). The morphology and chemical composition of TiO2 powder were investigated by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The photocatalytic degradation of methyl

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KANG, YOUNG SOO, and DONG RI ZHANG. "SYNTHESIS AND CHARACTERIZATION OF TITANIUM DIOXIDE DOPED WITH Sc3+ IONS." International Journal of Nanoscience 05, no. 02n03 (2006): 351–57. http://dx.doi.org/10.1142/s0219581x06004462.

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Nanoparticles of titanium dioxide ( TiO 2) doped with 5 at.% Sc 3+ ions were synthesized using the sol–gel method and calcined at 500°C to obtain better anatase phase. The crystal structures of the doped TiO 2 nanoparticles were characterized by X-ray powder diffraction (XRD), Raman, UV-vis, FT-IR spectroscopy, high resolution transmission electron microscopy (HRTEM) and selected-area electron diffraction (SAED). XRD patterns and Raman spectra of TiO 2 + 5 at.% Sc -500°C show the anatase phase and the average particle size of the sample calculated from XRD patterns was determined as 5.9 nm. We

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Wang, Neng Wei, Zai Chun Huang, and Xu Mei Cui. "Study on the Preparation and Properties of Li₄Ti₅O₁₂ Powder." Applied Mechanics and Materials 217-219 (November 2012): 759–65. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.759.

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Lithium titanate (Li4Ti5O12) was synthesized by solid-state method with anatase titanium dioxide and lithium carbonate(Li2CO3) as raw materials at 800°C,900°C and 1000°C for 12h, respectively. The prepared powder was characterized by XRD, SEM and constant current charge/discharge test. The results showed that the calcination temperature effected on the properties of Li4Ti5O12 powder, the crystallinity and particle size of powder were changed with the calcination temperature. Li4Ti5O12 had good performance of 1ithium insertion/extraction, stable charge/discharge platform, excellent multipule cy

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Ramezanalizadeh, H., and Saeed Heshmati-Manesh. "Mechanochemical Reduction of MoO₃ Powder by Silicone to Synthesize Nanocrystalline MoSi₂." Advanced Materials Research 264-265 (June 2011): 1364–69. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.1364.

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Molybdenum disiliside is known as a ceramic material with attractive properties for high temperature structural applications. In this study, mechanical alloying was used to produce MoSi2 powder directly from molybdenum oxide. Mixture of MoO3 and Si powders with commercial purity were exposed to high mechanical activation in a planetary ball mill. The ball to powder mass ratio was selected to be constant at 33:1 and the rotation speed (cup speed) was 600 rpm during the milling operations. Crystallite sizes and structural evolutions during milling were investigated by Xray diffraction analysis.

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Mody, Khyati, and I B Patel. "Comparative study of Powder X-Ray Diffraction Analyses of Titanium Dioxide (TiO₂) Nanoparticles Synthesized by the Sol-Gel Method." Journal of Condensed Matter 3, no. 01 (2025): 30–35. https://doi.org/10.61343/jcm.v3i01.71.

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This study presents a comparative analysis of Powder X-ray Diffraction (XRD) data of various Titanium Dioxide (TiO₂) nanoparticle samples synthesized via the Sol-Gel method using Titanium (IV) isopropoxide as a precursor. Titanium Dioxide, known for its chemical inertness and environmental friendliness, is widely utilized in industries as a pigment and exists in three crystalline phases: anatase, rutile, and brookite. XRD analysis revealed that the synthesized nanoparticles exhibit pure anatase and anatase-rutile mixed phases. The particle sizes, ranging in nanometres, were influenced by varyi

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Chithambararaj, A., and A. Chandra Bose. "Microwave Assisted Ultra Fast Synthesis of 1-D Molybdenum Oxide Nanocrystals: Structural and Electrical Studies." Advanced Materials Research 488-489 (March 2012): 940–44. http://dx.doi.org/10.4028/www.scientific.net/amr.488-489.940.

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Molybdenum oxide (MoO3) is a well known transition metal oxide with multi phase properties that permit novel applications in sensors and batter systems. In this paper, we report a new approach to synthesize meta-stable structured molybdenum oxide (MoO3) by microwave assisted solution precipitation method using a domestic microwave oven. The reaction is carried out in a short period of 5 min. The XRD results confirms that the powder exhibits single phase hexagonal MoO3 with lattice parameter a= 10.53 Å and c = 14.907 Å. SEM images show, the particles are one dimensional (1-D) structure with hex

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Li, Yan Juan, Nan Li, Xiao Yan, Yue Chi, Qing Yuan, and Xiao Tian Li. "One-Step Hydrothermal Synthesis of MoS₂ Nano-Flowers with High Surface Area and Crystalline." Key Engineering Materials 531-532 (December 2012): 508–11. http://dx.doi.org/10.4028/www.scientific.net/kem.531-532.508.

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One-step and controlled pH hydrothermal synthesis of transition metal disulfide using double molybdenum sources to synthesize MoS2 nano-flowers at low temperature was first reported. Anhydrous molybdenum pentachloride (MoCl5) and four sulfur ammonium molybdate ((NH4) 6Mo7O24•4H2O) were the molybdenum source and CS (NH2) 2 was the sulfur source. Through hydrothermal method, MoS2 was obtained at 180 °C. The pH value of system was controlled by adjusting the molar ratio of MoCl5 and (NH4) 6Mo7O24•4H2O. The products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy

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Ukhina, Arina V., Boris B. Bokhonov, and Dina V. Dudina. "Selective Deposition of Mo2C-Containing Coatings on {100} Facets of Synthetic Diamond Crystals." International Journal of Molecular Sciences 23, no. 15 (2022): 8511. http://dx.doi.org/10.3390/ijms23158511.

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An efficient way to improve the properties of metal–diamond composites (mechanical strength, wear resistance, thermal conductivity) is the preliminary modification of the diamond surface to improve its wettability by the metal matrix. In the present work, Mo2C-containing coatings were deposited on the diamond crystals under different conditions: hot pressing (atmosphere of argon), spark plasma sintering (forevacuum), and annealing in air. The influence of the sintering parameters on the morphology and phase composition of the coatings deposited on diamond was studied. Mo2C-containing coatings

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Wei, Shi Zhong, Liu Jie Xu, Guo Shang Zhang, Ji Wen Li, and Bao Zhu Dai. "Microstructure and Properties of Mo-Based Composites Reinforced by Al₂O₃." Applied Mechanics and Materials 120 (October 2011): 467–70. http://dx.doi.org/10.4028/www.scientific.net/amm.120.467.

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Mo-based composites with Al2O3 particles were developed in order to enhance the wear resistance of molybdenum alloys. Using Al2O3 power and pure Mo power as raw materials, the Molybdenum powders mixed with Al2O3 particles were prepared using planetary ball mill. And then the Mo-based composites with 3-10vol.% Alumina were prepared by compaction and sintering at 1840°C. The morphology of the Molybdenum powder and microstructure of the composites were analyzed by SEM and XRD. The micro-hardness, density and wear property of composites were researched. The results show that the microstructure of

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Jakeer Husain, Kiran Pakmode, Narsappa Reddy, Anindya Jana, and Sayan Chatterjee. "Sensing and Electrical properties of Polyaniline /Nanocomposites For Gas Sensor Application." international journal of engineering technology and management sciences 7, no. 2 (2023): 108–11. http://dx.doi.org/10.46647/ijetms.2023.v07i02.013.

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Polyaniline nanocomposite using metal oxides have wide variety of applicability because of its enhanced properties to that of pure polyaniline. Here we employed titanium dioxide as the metal oxide to synthesize polyaniline composite (PANi-TiO2 ) through chemical oxidative polymerization in-situ. The obtained PANi-TiO2 is tested for powder X-Ray diffractometry (XRD), & Scanning electron microscopy(SEM).

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Wang, Yu Tian, You Dong Cao, Jin Hu, Wei Jun Zhang, Da Ping Wu, and Li Shen. "Fabrication of Lithium Silicate Doped with Lithium Titanate by Solid-State Reaction and its XRD Study." Advanced Materials Research 624 (December 2012): 200–203. http://dx.doi.org/10.4028/www.scientific.net/amr.624.200.

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Fabrication of lithium silicate powder containing lithium titanate by solid phase reaction method. LiFabrication of lithium silicate powder doped with lithium titanate by solid-state reaction. Take lithium carbonate, silicon dioxide and titania as raw materials and then these powders were mixed according to the different ratios and grinded in an agate mortar for 15 min. And then the mixture were dried at 80°C. Finally, the samples were sintered in vacuum tube furnace at 750, 800, 850 and 900°C for 2h. Thermogravimetric analysis, differential scanning calorimetry and XRD analysis were carried o

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Biessikirski, Andrzej, Krzysztof Barański, Mateusz Pytlik, Łukasz Kuterasiński, Jolanta Biegańska, and Konrad Słowiński. "Application of Silicon Dioxide as the Inert Component or Oxide Component Enhancer in ANFO." Energies 14, no. 8 (2021): 2152. http://dx.doi.org/10.3390/en14082152.

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Non-ideal explosives with differing contents of silicon dioxide (silica or dioxosilane) added in the form of powder and gel were tested. Measurements of structure, crystallinity and morphology were performed by means of infrared spectroscopy (IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). IR and XRD analysis revealed a lack of SiO2 influence on the non-ideal explosive structure. SEM analysis indicated that all the surface deformations of ammonium nitrate(V) prill were filled by a thin fuel film layer on which SiO2 was present. The additional calculations of selected theor

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Xu, Liu Jie, Shi Zhong Wei, Guo Shang Zhang, Ji Wen Li, Xiang Dong Ma, and Bao Zhu Dai. "Preparation and Properties of Al₂O₃ Ceramic Reinforced Mo-Based Composites by Al(NO₃)₃ Precursor." Advanced Materials Research 150-151 (October 2010): 1077–81. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.1077.

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To enhance the wear resistance of molybdenum alloys, Mo-based composites reinforced by Al2O3 ceramic particles were developed. Using Al(NO3)3 aqueous solution and MoO3 as raw materials, the Molybdenum powders mixed with Al2O3 particles were prepared by liquid-solid incorporation, drying, pyrolysis of Al(NO3)3 and deoxidation of MoO3 by H2. And then the Mo-based composites with 3-10vol.% Alumina were prepared by compaction and sintering at 1840°C. The morphology of the Molybdenum powder and microstructure of the composites were analyzed by SEM and XRD. The micro-hardness, density and wear prope

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Shakila, S., and B. R. Venkatraman. "Green fabrication and characterization of transition metal doped tin dioxide nanoparticles using Psidium guajava leaf extract." Research Journal of Chemistry and Environment 26, no. 11 (2022): 51–55. http://dx.doi.org/10.25303/2611rjce051055.

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The microwave-assisted green fabrication of tin dioxide (SnO2), iron (Fe)-doped tin dioxide (SFO), nickel (Ni)-doped tin dioxide (SNO) and cobalt (Co)-doped tin dioxide (SCO) nanoparticles (NPs) was illustrated employing Psidium guajava leaf extract (PGLE). The fabricated NPs were characterized by X-ray powder diffraction (XRD), Field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), Energy-dispersive X-ray spectroscopy (EDAX) and Photoluminescence (PL) spectroscopy. XRD patterns of fabricated SnO2, SFO, SNO and SCO NPs show a rutile structure. FESEM study

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Mehmood, Muhammad Farhan, and Amir Habib. "Hydrothermal Synthesis and Structural Characterization of BaTiO3 Powder." Nucleus 60, no. 2 (2023): 168–73. https://doi.org/10.71330/thenucleus.2023.1296.

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The main purpose of the present study was to synthesize and characterize the structural morphology of barium titanate (BaTiO3) powder. The synthesis of BaTiO3 powder was carried out by hydrothermal process using barium hydroxide (Ba(OH)2) and titanium dioxide (TiO2) as precursors in a high-pressure stirred reactor autoclave for a 7-hour reaction time at various temperatures (100, 150 and 180 °C). The physical appearance of the synthesized BaTiO3 powder was white crystalline. X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM) were used to characterize the BaTiO3

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Mehmood, Muhammad Farhan, and Amir Habib. "Hydrothermal Synthesis and Structural Characterization of BaTiO3 Powder." Nucleus 60, no. 2 (2023): 168–73. https://doi.org/10.71330/nucleus.60.02.1296.

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The main purpose of the present study was to synthesize and characterize the structural morphology of barium titanate (BaTiO3) powder. The synthesis of BaTiO3 powder was carried out by hydrothermal process using barium hydroxide (Ba(OH)2) and titanium dioxide (TiO2) as precursors in a high-pressure stirred reactor autoclave for a 7-hour reaction time at various temperatures (100, 150 and 180 °C). The physical appearance of the synthesized BaTiO3 powder was white crystalline. X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM) were used to characterize the BaTiO3

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