Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
ACS Appl Mater Interfaces. 2013 May;5(9):3677-82. doi: 10.1021/am400209u. Epub 2013 Apr 16.
Molybdenum nitride/N-doped carbon nanospheres (MoN/N-C) are synthesized by hydrothermal method followed by ammonia annealing. The as-prepared MoN/N-C nanospheres manifest considerable electrocatalytic activity toward oxygen reduction reaction in nonaqueous electrolytes because of its nanostructure and the synergetic effect between MoN and N-C. Furthermore, the MoN/N-C nanospheres are explored as cathode catalyst for Li-O2 batteries with tetra-(ethylene glycol) dimethyl ether as the electrolyte. The assembled batteries deliver alleviated overpotentials and improved battery lifespan, and their excellent performances should be attributed to the unique hierarchical structure and high fraction of surface active sites of cathode catalyst.
氮化钼/氮掺杂碳纳米球（MoN/N-C）通过水热法合成，然后进行氨退火处理。所制备的 MoN/N-C 纳米球由于其纳米结构和 MoN 与 N-C 之间的协同效应，在非水电解液中对氧还原反应表现出相当大的电催化活性。此外，MoN/N-C 纳米球还被探索作为 Li-O2 电池的阴极催化剂，以四乙二醇二甲醚作为电解质。组装好的电池表现出较低的过电位和改善的电池寿命，其优异的性能应归因于阴极催化剂独特的分层结构和高比例的表面活性位。
