A thermal reduction route to nanocrystalline transition metal carbides from waste polytetrafluoroethylene and metal oxides

作者：Wang Liangbiao; Li Qianwen; Mei Tao; Shi Liang; Zhu Yongchun^*; Qian Yitai

来源：Materials Chemistry and Physics, 2012, 137(1): 1-4.

DOI：10.1016/j.matchemphys.2012.08.008

• Carbides
• Chemical synthesis
• Electron microscopy
• Superconductivity

Starting from waste polytetrafluoroethylene (PTFE), metal oxides (TiO2, V2O5, Nb2O5, and MoO3) and metal sodium, several nanocrystalline transition metal carbides (TiC, VC, NbC, and Mo2C) have been prepared through a thermal reduction route in an autoclave at 600 degrees C. It is found that the obtained NbC nanocrystallines have a superconducting transition temperature at 11.6 K.

• 出版日期2012-11-15
• 单位中国科学技术大学