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High N-content holey few-layered graphene electrocatalysts: Scalable solvent-less production
journal contribution
posted on 2015-01-28, 00:00 authored by Dan LiuDan Liu, Weiwei LeiWeiwei Lei, D Portehault, Alex QinAlex Qin, Ying (Ian) ChenYing (Ian) ChenFew layered nitrogen doped graphene (NG) attracts great interest in energy storage and conversion applications due to its electronic and catalytic properties. However, its bulk production cannot be envisioned by the current synthetic methods. Here we report a facile, solvent-less, low cost and high yield process for the synthesis of NG. Mechanochemical solid-state exfoliation allows scalable synthesis of holey and crumple nitrogen-doped few-layered graphene from graphite with controlled high concentration N doping and a high surface area through ball-milling. By adjusting the ratio of starting materials, the nitrogen content can be modulated from 4.87 to 17.83 at.%. Furthermore, the types of nitrogen-containing species in few-layered graphene can also be controlled. The resultant NG exhibits superior oxygen reduction reaction performance and more reliable stability than commercial Pt/C catalysts. This journal is
History
Journal
Journal of Materials Chemistry AVolume
3Issue
4Pagination
1682 - 1687Publisher
Royal Society of ChemistryPublisher DOI
ISSN
2050-7488eISSN
2050-7496Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2015, Royal Society of ChemistryUsage metrics
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