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Synthesis of superconducting sphere‐like Mo 2 C nanoparticles in an autoclave
Author(s) -
Sun Bo,
Xu Liqiang,
Tang Kaibin,
Wang Liancheng,
Ju Zhicheng,
Qian Yitai
Publication year - 2012
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201100177
Subject(s) - autoclave , sodium molybdate , anhydrous , scanning electron microscope , nanoparticle , sodium azide , transmission electron microscopy , chemistry , powder diffraction , nanoreactor , nuclear chemistry , materials science , chemical engineering , molybdate , inorganic chemistry , crystallography , metallurgy , nanotechnology , organic chemistry , composite material , engineering
Sphere‐like Mo 2 C nanoparticles have been synthesized through the reaction of sodium molybdate, anhydrous ethanol and sodium azide at 450 °C for 10 h in a sealed stainless steel autoclave. X‐ray powder diffraction results indicated that the final product was Mo 2 C. Transmission electron microscopy (TEM) and scanning elctron microscopy (SEM) were employed to characterize the as‐prepared sample. The sample was mostly composed of sphere‐like particles, which has a superconducting transition temperature of 9.5 K, and its calculated surface area is 30.859 m 2 /g. The experimental parameters such as reaction temperature and reactants were studied to investigate the reaction mechanism. It was found that sodium azide and reaction temperature played key roles in the formation of sphere‐like Mo 2 C nanoparticles. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)