Molybdenum Nitride/N-Doped Carbon Nanospheres for Lithium-O2 Battery Cathode Electrocatalyst

被引：104

作者：

Zhang, Kejun ^{[1
,2
]}

Zhang, Lixue ^{[1
]}

Chen, Xiao ^{[1
]}

He, Xiang ^{[3
]}

Wang, Xiaogang ^{[1
]}

Dong, Shanmu ^{[1
]}

Gu, Lin ^{[3
]}

Liu, Zhihong ^{[1
]}

Huang, Changshui ^{[1
]}

Cui, Guanglei ^{[1
]}

机构：

[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

[3] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2013年 / 5卷 / 09期

基金：

中国国家自然科学基金;

关键词：

MoN/N-C nanospheres; synergetic effect; electrocatalytic activity; oxygen reduction reaction; Li-O-2; batteries; OXYGEN-REDUCTION ACTIVITY; BIFUNCTIONAL CATALYST; NANOTUBE ARRAYS; OXIDE CATALYSTS; NANOPARTICLES; NANOWIRES; NANOCUBES; ELECTRODE; CAPACITY; GRAPHENE;

D O I：

10.1021/am400209u

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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-O-2 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.

引用

页码：3677 / 3682

页数：6

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