Edge-Selectively Sulfurized Graphene Nanoplatelets as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction: The Electron Spin Effect

被引：547
作者：
Jeon, In-Yup [1 ]
Zhang, Sheng [2 ]
Zhang, Lipeng [3 ,4 ]
Choi, Hyun-Jung [1 ]
Seo, Jeong-Min [1 ]
Xia, Zhenhai [3 ,4 ]
Dai, Liming [2 ]
Baek, Jong-Beom [1 ]
机构：
[1] UNIST, Interdisciplinary Sch Green Energy, Low Dimens Carbon Mat Ctr, Ulsan 689798, South Korea
[2] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA
[3] Univ N Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA
[4] Univ N Texas, Dept Chem, Denton, TX 76203 USA
来源：
ADVANCED MATERIALS | 2013年 / 25卷 / 42期
基金：
新加坡国家研究基金会;
关键词：
ball-milling; sulfurization; graphene nanoplatelets; electrocatalysts; oxygen reduction reaction; NITROGEN-DOPED GRAPHENE; FUNCTIONALIZED GRAPHENE; CARBON NANOTUBES; CATALYSTS; OXIDE; GRAPHITE; NANOSHEETS; IRON;
D O I：
10.1002/adma.201302753
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
To replace precious platinum (Pt)-based electrocatalysts for cathodic oxygen reduction reaction (ORR), edge-selectively sulfurized graphene nanoplatelets (SGnP) are synthesized as efficient metal-free electrocatalysts simply by ball-milling pristine graphite in the presence of sulfur (S 8). The resultant SGnPs exhibit remarkable electrocatalytic activity toward ORR with better tolerance to methanol crossover/CO poisoning effects and longer-term stability than those of pristine graphite and commercial Pt/C electrocatalysts. Edge-Selectively Sulfurized Graphene Nanoplatelets as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction: The Electron Spin Effect © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：6138 / 6145
页数：8
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