期刊
CHEMSUSCHEM
卷 6, 期 3, 页码 493-499出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201200564
关键词
carbon; electrocatalysis; chemical vapor deposition; electrochemistry; platinum-free
资金
- National Natural Science Foundation of China [21101154, 21171163, 91127020]
- National Key Project on Basic Research [2011CB935904]
- Fundamental Research Funds for the Central Universities [2012QNA4005]
S and N co-doped, few-layered graphene oxide is synthesized by using pyrimidine and thiophene as precursors for the application of the oxygen reduction reaction (ORR). The dual-doped catalyst with pyrrolic/graphitic N-dominant structures exhibits competitive catalytic activity (10.0mAcm2 kinetic-limiting current density at 0.25V) that is superior to that for mono N-doped carbon nanomaterials. This is because of a synergetic effect of N and S co-doping. Furthermore, the dual-doped catalyst also shows an efficient four-electron-dominant ORR process, which has excellent methanol tolerance and improved durability in comparison to commercial Pt/C catalysts.
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