六方MoN的合成新路线

1.
同济大学玻耳固体研究所，上海 200092；
2.
Institute of Inorganic Chemistry, University of Regensburg, Regensburg 93040, Germany

A New Route for the Synthesis of MoN

1.
Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092, China;
2.
Institute of Inorganic Chemistry, University of Regensburg, Regensburg 93040, Germany

摘要: 在高温高压极端条件下利用CH4Cl还原二氧化钼的方法合成了六方MoN。反应条件为：压力2 GPa，温度1 500 ℃，时间2 h。并利用XRD对合成产物进行了表征。经最小二乘法拟合后结果表明，该合成产物具有六方结构对称性，其晶格常数为a＝0.572 nm，c＝0.560 nm。经过对其衍射峰位和峰强进行拟合计算，并与实验结果进行比较，结果表明 MoN 产物的空间群为P63/mmc，其中Mo原子位于2b (0, 0, 1/4)和6h (x, 2x, 1/4)，x＝0.489。N原子位于2a (0, 0, 0)和6g (0.5, 0, 0)。所采用的方法具有反应条件易达到、反应时间短、反应产物单相性好等特点。
- 高温高压 /
- MoN /
- X射线衍射
Abstract: The Molybdenum nitride was synthesized by the reduction of Molybdenum dioxide with ammonium chloride under extreme conditions of high pressure and high temperature. The product was examined with XRD measurement. The results show that the MoN has the hexagonal symmetry with lattice constants of a=0.572 nm, c=0.560 nm, and space group of P63/mmc. The Mo atoms are at the positions 2b (0, 0, 1/4) and 6h (x, 2x, 1/4), x=0.489, the N atoms are at the positions 2a (0, 0, 0) and 6g (0.5, 0, 0). This method is very easy to be attached, and get the pure phase, as well as need a short time to react.
- high pressure and high temperature /
- MoN /
- XRD