{"title":"On the Fabrication of Niobium-Carbide Powders by the Reaction of Niobium with Acetone","authors":"V. N. Kolosov, M. N. Miroshnichenko","doi":"10.1134/S2635167623600876","DOIUrl":null,"url":null,"abstract":"<div><p>The process of fabricating niobium-carbide powders using niobium powder as a precursor and acetone vapor as a carbon source is investigated in the temperature range of 650–850°C using magnesium as an in situ niobium deoxidizer. A comprehensive analysis of the powders is performed with determination of the carbide crystal structure and crystallite size using X-ray diffraction analysis, the specific surface area, and porosity of the powders using the Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) methods. Powders of niobium carbide NbC with cubic structure (<i>Fm</i><span>\\(\\bar {3}\\)</span><i>m</i>) are obtained. The specific surface of the powders are at the level of 9–26 m<sup>2</sup>/g. The powders are characterized by a mesoporous structure. The average crystallite sizes are 11–16 nm.</p></div>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"18 1 supplement","pages":"S48 - S54"},"PeriodicalIF":0.8000,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanotechnologies in Russia","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2635167623600876","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
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Abstract
The process of fabricating niobium-carbide powders using niobium powder as a precursor and acetone vapor as a carbon source is investigated in the temperature range of 650–850°C using magnesium as an in situ niobium deoxidizer. A comprehensive analysis of the powders is performed with determination of the carbide crystal structure and crystallite size using X-ray diffraction analysis, the specific surface area, and porosity of the powders using the Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) methods. Powders of niobium carbide NbC with cubic structure (Fm\(\bar {3}\)m) are obtained. The specific surface of the powders are at the level of 9–26 m2/g. The powders are characterized by a mesoporous structure. The average crystallite sizes are 11–16 nm.
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Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.
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