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Highly active reduction of oxygen on a FeCo alloy catalyst encapsulated in pod-like carbon nanotubes with fewer walls
Deng, Jiao; Yu, Liang; Deng, Dehui; Chen, Xiaoqi; Yang, Fan; Bao, Xinhe
刊名JOURNAL OF MATERIALS CHEMISTRY A
2013
DOI10.1039/c3ta13759g
1期:47页:14868-14873
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
关键词[WOS]HIGH ELECTROCATALYTIC ACTIVITY ; PEM FUEL-CELLS ; CATHODE CATALYST ; GRAPHENE NANOSHEETS ; ALKALINE-MEDIUM ; NANOPARTICLES ; PERFORMANCE ; COMPLEXES ; SULFUR ; GROWTH
英文摘要Employing an alternative of the Pt-based electrocatalysts for oxygen reduction reaction (ORR) has become a major interest in the fundamental research of the polymer electrolyte membrane fuel cells (PEMFCs). The carbon-encapsulated metal catalyst, on which O-2 is readily activated by the electrons transferred from the metal to the carbon surface, has recently been demonstrated as a promising strategy to produce robust non-precious metal electrocatalysts. However, the thickness of carbon walls might affect the process of the electron transfer, and subsequently the ORR activity. It is thus vital to explore the influence of the carbon wall thickness on the ORR reactivity for further improvement in designing carbon-encapsulated non-precious metal catalysts for ORR. Herein, we report a novel FeCo alloy catalyst encapsulated in pod-like carbon nanotubes via introducing graphene nanosheets into the raw materials to tailor the carbon wall thickness. The ORR activity of these catalysts increases drastically with the decreased thickness of the carbon walls, which could be attributed to the enhanced adsorption of O-2 on the carbon surface upon decreasing the carbon wall thickness. These findings provide a route for the rational design of high-performance non-precious metal cathode catalysts in PEMFCs.
语种英语
WOS记录号WOS:000326984500007
引用统计
被引频次:77[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/137963
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
Deng, Jiao,Yu, Liang,Deng, Dehui,et al. Highly active reduction of oxygen on a FeCo alloy catalyst encapsulated in pod-like carbon nanotubes with fewer walls[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(47):14868-14873.
APA Deng, Jiao,Yu, Liang,Deng, Dehui,Chen, Xiaoqi,Yang, Fan,&Bao, Xinhe.(2013).Highly active reduction of oxygen on a FeCo alloy catalyst encapsulated in pod-like carbon nanotubes with fewer walls.JOURNAL OF MATERIALS CHEMISTRY A,1(47),14868-14873.
MLA Deng, Jiao,et al."Highly active reduction of oxygen on a FeCo alloy catalyst encapsulated in pod-like carbon nanotubes with fewer walls".JOURNAL OF MATERIALS CHEMISTRY A 1.47(2013):14868-14873.
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