期刊
ADVANCED FUNCTIONAL MATERIALS
卷 28, 期 16, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201707284
关键词
hydrothermal carbonisation; interface manipulation; MWCNTs; nanocomposites; oxygen reduction reaction
类别
资金
- European Research Council [ERC-2009-StG-240500-DEDIGROWTH, ERC-2016-POC-754748-OxfordNano, ERC-2015-POC-680559-CONDUCT, ERC-2011-POC-309786-DEVICE]
- Royal Society
- Engineering and Physical Sciences Research Council [EP/R021554/1, EP/N509899/1]
- Engineering and Physical Sciences Research Council IAA block grants
An effective strategy is proposed to enhance the oxygen reduction reaction (ORR) performance of multiwall carbon nanotubes (MWCNTs) in both acid and alkaline electrolytes by coating them with a layer of biomass derivative N-doped hydrothermal carbons. The N-doped amorphous carbon coating plays triple roles: it (i) promotes the assembly of MWCNTs into a 3D network therefore improving the mass transfer and thus increasing the catalytic activity; (ii) protects the Fe-containing active sites, present on the surface of the MWCNTs, from H2O2 poisoning; (iii) creates nitrogenated active sites and hence further enhances ORR activity and robustness.
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