Co/CoO Nanoparticles Assembled on Graphene for Electrochemical Reduction of Oxygen

被引:387
作者
Guo, Shaojun [1 ]
Zhang, Sen [1 ]
Wu, Liheng [1 ]
Sun, Shouheng [1 ]
机构
[1] Brown Univ, Dept Chem, Providence, RI 02912 USA
关键词
cobalt; graphene; heterogeneous catalysis; nanoparticles; oxygen reduction; METAL-FREE ELECTROCATALYSTS; NITROGEN-DOPED GRAPHENE; CATALYST-FREE SYNTHESIS; NANOCRYSTALS; NANOTUBES; HYBRID; OXIDE;
D O I
10.1002/anie.201206152
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Good support: A solution-phase self-assembly approach leads to Co/CoO core/shell nanoparticles deposited on graphene (G-Co/CoO NPs). Their catalytic activity for the oxygen reduction reaction in O2-saturated KOH solution depends on the thickness of the CoO shell (green in picture). The optimized G-Co/CoO NPs have a comparative activity and better stability than the commercial Pt NP catalyst supported on carbon (C-Pt). Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:11770 / 11773
页数:4
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