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题名: CNTs@Fe-C-C core-shell nanostructures as active electrocatalyst for oxygen reduction
作者: Yao, Yi1, 3;  Xiao, Hui2, 3;  Wang, Peng1, 3;  Su, Panpan1, 3;  Shao, Zhigang2;  Yang, Qihua1
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2014-08-14
DOI: 10.1039/c4ta01237b
卷: 2, 期:30, 页:11768-11775
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: The development of non-precious metal catalysts for oxygen reduction reactions (ORRs) is of extreme importance for the construction of efficient H-2/O-2 polymer electrolyte membrane fuel cells (PEMFCs), one of the most promising clean energy technologies. Herein, we report the fabrication of core-shell structured CNTs@Fe-N-C composites with a Fe-N-C shell closely wrapped around a core of CNTs (carbon nanotubes) as efficient catalysts for ORR. CNTs@Fe-N-C composites afford comparable activity to commercial Pt/C catalysts with a loading of 20 mu g Pt cm(-2) towards ORR in alkaline media. The results of XRD, TEM. XPS and Fe-57 MOssbauer characterizations suggest that the high ORR activity of CNTs@.FeN-C composites are mainly attributed to the combined advantages of the unique core-shell nanostructure allowing close contact between Fe-N-C and CNTs, uniformly distributed FeN4/C species, and the presence of pyridine and graphitic nitrogen.
关键词[WOS]: DOPED CARBON NANOTUBES ;  FUEL-CELL CATHODE ;  IRON ;  CATALYSTS ;  POLYANILINE ;  GRAPHENE ;  SITES ;  MEDIA
语种: 英语
WOS记录号: WOS:000339535100030
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145657
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Yao, Yi,Xiao, Hui,Wang, Peng,et al. CNTs@Fe-C-C core-shell nanostructures as active electrocatalyst for oxygen reduction[J]. JOURNAL OF MATERIALS CHEMISTRY A,2014,2(30):11768-11775.
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