Synthesis of highly dispersed vanadium diboride with the use of nanofibrous carbon |
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| Authors: | Yu L Krutskii E A Maksimovskii T M Krutskaya M V Popov O V Netskina A A Nikulina N Yu Cherkasova T S Kvashina |
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| Institution: | 1.Novosibirsk State Technical University,Novosibirsk,Russia;2.Institute of Inorganic Chemistry, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;3.Novosibirsk State University,Novosibirsk,Russia;4.Novosibirsk State Architectural-Constructional University,Novosibirsk,Russia;5.Boreskov Institute of Catalysis, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia |
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| Abstract: | Reduction of vanadium(III) oxide with boron carbide and nanofibrous carbon in an induction furnace in argon was used to obtain a highly dispersed vanadium diboride powder. The characteristics of vanadium diboride powders were studied by various analytical methods. It was found that the material obtained contains only a single phase, vanadium diboride, with powder particles mostly aggregated, the average size of particles and aggregates being 9.8 μm at a wide particle size distribution. The optimal synthesis parameters were determined: V2O3: B4C: C ratio corresponding to the stoichiometry, temperature 1700°C, and keeping time 20 min. |
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