期刊
BIOELECTROCHEMISTRY
卷 95, 期 -, 页码 23-28出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.bioelechem.2013.10.007
关键词
Microbial fuel cells; Nitrogen-doped carbon; Oxygen reduction reaction
资金
- Heilongjiang Postdoctoral Science-Research Foundation [LBH-Q12118]
- National Natural Science Foundation of China [51179033]
- China Postdoctoral Science Foundation [20100480975, 201104413]
- Harbin Special Innovative Talents of science and Technology Research Foundation [2009RFXXG204]
Porous nitrogen-doped carbon nanosheet on graphene (PNCN) was used as an alternative cathode catalyst for oxygen reduction reaction (ORR) in air-cathode microbial fuel cells (MFCs). Here we report a novel, low-cost, scalable, synthetic method for preparation of PNCN via the carbonization of graphite oxide-polyaniline hybrid (Go-PANI), subsequently followed by KOH activation treatment. Due to its high concentration of nitrogen and high specific surface area, PNCN exhibited an excellent catalytic activity for ORR. As a result, the maximum power density of 1159.34 mW m(-2) obtained with PNCN catalyst was higher than that of Pt/C catalyst (858.49 mW m(-2)) in a MFC. Therefore, porous nitrogen-doped carbon nanosheet could be a good alternative to Pt catalyst in MFCs. (C) 2013 Elsevier B.V. All rights reserved.
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