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Baek, Jong-Beom
Center for Dimension-Controllable Organic Frameworks
Research Interests
  • Covalent Organic Frameworks (COFs), Carbon Nanotubes(CNTs), graphene, Energy Conversion and Storage

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

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Title
Edge-Selectively Sulfurized Graphene Nanoplatelets as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction: The Electron Spin Effect
Author
Jeon, In-YupZhang, ShengZhang, LipengChoi, Hyun-JungSeo, Jeong-MinXia, ZhenhaiDai, LimingBaek, Jong-Beom
Keywords
Ball-milling; Electrocatalysts; Graphene nanoplatelets; Oxygen reduction reaction; Sulfurization
Issue Date
201311
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED MATERIALS, v.25, no.42, pp.6138 - 6145
Abstract
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
URI
http://scholarworks.unist.ac.kr/handle/201301/3998
DOI
http://dx.doi.org/10.1002/adma.201302753
ISSN
0935-9648
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