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题名: Two-Dimensional Mesoporous Carbon Doped with Fe-N Active Sites for Efficient Oxygen Reduction
作者: Ye, Yifan1, 2;  Li, Haobo1, 2;  Cai, Fan1, 2;  Yan, Chengcheng1, 2;  Si, Rui3;  Miao, Shu1;  Li, Yanshuo4;  Wang, Guoxiong1;  Bao, Xinhe1
关键词: zeolitic imidazolate framework-7 ;  oxygen reduction reaction ;  self-assembly ;  3D-to-2D transformation ;  iron-nitrogen sites
刊名: ACS CATALYSIS
发表日期: 2017-11-01
DOI: 10.1021/acscatal.7b02101
卷: 7, 期:11, 页:7638-7646
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Iron-nitrogen (Fe-N) sites confined within carbon are highly active to catalyze the oxygen reduction reaction (ORR). The mesoporous structure of carbon facilitates the mass transport and availability to the Fe-N sites during the ORR; however, the construction of mesoporous carbon architecture with highly exposed and accessible Fe-N active sites remains challenging. Herein, 3D-to-2D transformation of zeolitic imidazolate frame-work-7 (ZIF-7) was successfully achieved via convenient impregnation in ammonium ferric citrate aqueous solution. After pyrolysis, isolated Fe-N sites are generated and confined within highly mesoporous carbon without using any additional modulator or template. The optimal Fe-N catalyst exhibits excellent performance toward ORR in alkaline medium, exceeding commercial 40% Pt/C catalyst in terms of activity, stability, and methanol resistance.
关键词[WOS]: METAL-ORGANIC FRAMEWORKS ;  FUNCTIONALIZED GRAPHITIC MATERIALS ;  C CATALYSTS ;  TRANSITION-METALS ;  HIGHLY EFFICIENT ;  ELECTROCATALYSTS ;  EVOLUTION ;  NITROGEN ;  IRON ;  COBALT
语种: 英语
WOS记录号: WOS:000414724700029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149748
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.Acad Sinica, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis,CAS Ctr Excellence Nanosc, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
4.Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China

Recommended Citation:
Ye, Yifan,Li, Haobo,Cai, Fan,et al. Two-Dimensional Mesoporous Carbon Doped with Fe-N Active Sites for Efficient Oxygen Reduction[J]. ACS CATALYSIS,2017,7(11):7638-7646.
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