α-MnO2 nanorods grown in situ on graphene as catalysts for Li-O2 batteries with excellent electrochemical performance

被引：237

作者：

Cao, Yong ^{[1
]}

Wei, Zhikai ^{[1
]}

He, Jiao ^{[1
]}

Zang, Jun ^{[1
]}

Zhang, Qian ^{[1
]}

Zheng, Mingsen ^{[1
]}

Dong, Quanfeng ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Fujian, Peoples R China

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2012年 / 5卷 / 12期

关键词：

LITHIUM-AIR BATTERIES; OXYGEN REDUCTION REACTION; NANOSHEETS; ELECTRODE; CATHODE; OXIDE; ELECTROCATALYSTS; CAPACITY;

D O I：

10.1039/c2ee23475k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Through in situ nucleation and growth of alpha-MnO2 nanorods on graphene nanosheets (GNs), a alpha-MnO2 nanorod/GN hybrid was synthesized and employed as the catalyst for non-aqueous lithium oxygen (Li-O-2) batteries. The alpha-MnO2/GN hybrid showed excellent catalytic property. It was demonstrated that the catalytic performance of alpha-MnO2 for ORR and OER was not only associated with the morphology and size of the particles but also with their combination with graphene. The developed in situ synthetic strategy can also be applied to prepare analogous MOx/GN hybrids used in Li-O-2 batteries and other energy storage systems.

引用

收藏

页码：9765 / 9768

页数：4

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