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- Baek, Jong-Beom
- Center for Dimension-Controllable Organic Frameworks
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Formation of Large-Area Nitrogen-Doped Graphene Film Prepared from Simple Solution Casting of Edge-Selectively Functionalized Graphite and Its Electrocatalytic Activity
- Author(s)
- Jeon, In-Yup, Yu, Dingshan, Bae, Seo-Yoon, Choi, Hyun-Jung, Chang, Dong Wook, Dai, Liming, Baek, Jong-Beom
- Issued Date
- 2011-09
- Citation
- CHEMISTRY OF MATERIALS, v.23, no.17, pp.3987 - 3992
- Abstract
- "Pristine" graphite is edge-selectively functionalized with 4-aminobenzoic acid by a "direct" Friedel Crafts acylation reaction in a polyphosphoric acid/phosphorus pentoxide medium to produce 4-aminobenzoyl edge-functionalized graphite (EFG). The EFG is readily dispersible in N-methyl-2-pyrrolidone (NMP). Subsequent solution casting leads to the formation of large-area graphene film on a silicon wafer. The film shows sheet resistances of 60 and 200 Omega/sq, respectively, before and after heat treatment at 900 degrees C in an argon atmosphere. Upon the heat treatment, the EFG film becomes a N-doped graphene (N-graphene) film to display outstanding electrocatalytic activity for oxygen reduction reaction (ORR).
- Publisher
- AMER CHEMICAL SOC
- ISSN
- 0897-4756
- Keyword (Author)
- graphite, graphene, edge-functionalization, nitrogen-doped graphene, electrocatalytic activity
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