期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 31, 页码 12273-12280出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta02891h
关键词
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资金
- Natural Science Foundations of China [21306030, 21576056, 21576057]
- Natural Science Foundations of Guangdong Province [2014A030313520, 2015A030313503]
- Science and Technology Research Project of Guangdong Province [2016A010103043]
- Science and Technology Research Project of Guangzhou [201607010232, 201607010198, 201607010263]
- Scientific Research Project of Guangzhou Municipal Colleges and Universities [1201410618]
The exploration and design of inexpensive noble-free metal catalysts with high activity and stability as alternatives for carbon supported platinum catalysts (Pt/C) in the microbial fuel cells (MFCs) still remain a great challenge. In this work, nanostructured hexagonal klockmannite copper selenide (CuSe) grown on the hybrid of reduction oxidized graphene (rGO) and carbon nanotubes (CNTs) has been synthesized via a facile and cost effective method. Compared with the pure CuSe, rGO-CNTs and correlative others, the as-prepared CuSe@rGO-CNTs exhibited a superior ORR catalytic performance, for instance, more positive onset potential, higher current density, smaller Tafel slope and excellent stability. Furthermore, MFCs equipped with CuSe@rGO-CNTs cathodes also achieved a larger energy output comparable to those of reference devices employing Pt/C as the catalyst.
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