Abstract
A simple and fast method of preparation of vanadium carbide (V8C7) nanopowders using mechanical alloying assisted microwave heating method was demonstrated. The micron-sized V2O5 and nano-sized carbon black were used as starting materials. The as-prepared powders were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric and differential scanning calorimetry (TG-DSC), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) techniques. The experimental results show that the V8C7 powders can be obtained by microwave heating at 1 100 °C for 1 h (34wt% C). The synthesized powders show good dispersion and are mainly composed of spherical or near-spherical particles with a mean diameter of about 30 nm. The XPS spectra show that the surface of the specimen mainly consists of V, C, and O three species elements.
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Funded by the Natural Science Foundation of China (21404032), the Program for Science & Technology Innovation Talents in Universities of Henan Province (16HASTIT011), the Funding Scheme for Young Teachers of Higher School in Henan Province (2014GGJS-062), the Fundamental Research Funds for the Henan Provincial Colleges and Universities (2014YWQQ19), the Development of Science and Technology Plan Projects of Zhengzhou City (20140771) and the Foundation of Henan University of Technology ( 2014JCYJ13), China
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Yang, B., Zheng, H., Zhao, Z. et al. Synthesis of Vanadium Carbide Nanopowders via Mechanical Alloying and Microwave Heating Methods. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 34, 332–336 (2019). https://doi.org/10.1007/s11595-019-2056-4
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DOI: https://doi.org/10.1007/s11595-019-2056-4