Facile Synthesis and Thermal Stability of Nanocrystalline Molybdenum Carbide

Youjian Chen, Hong Zhang, Jinfeng Zhang, Jianhua Ma, Hongnan Ye, Gaojin Qian, Yi Ye, Shuang Zhong

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DOI: 10.4236/msa.2011.29178                

Abstract

Nanocrystalline molybdenum carbide (Mo₂C) was prepared via one simple route by the reaction of metallic magnesium powders with molybdenum trioxide and potassium acetate in an autoclave at the condition of 600℃ and 4 h. X-ray powder diffraction (XRD) pattern indicated that the product was hexagonal α-Mo₂C, and the cell constant was a = 3.0091 Å, c = 4.7368 Å. Scanning electron microscopy (SEM) image showed that the sample consisted of particles with an average size of about 100 nm in diameter. The product was also studied by the thermogravimetric analysis (TGA). It had good thermal stability and oxidation resistance below 450℃ in air.

Keywords

Molybdenum Carbide, Chemical Synthesis, X-Ray Diffraction, Thermogravimetric Analysis

Conflicts of Interest

The authors declare no conflicts of interest.

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