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Two-Dimensional Mesoporous Carbon Doped with Fe-N Active Sites for Efficient Oxygen Reduction
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
2017-11-01
DOI10.1021/acscatal.7b02101
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
关键词[WOS]METAL-ORGANIC FRAMEWORKS ; FUNCTIONALIZED GRAPHITIC MATERIALS ; C CATALYSTS ; TRANSITION-METALS ; HIGHLY EFFICIENT ; ELECTROCATALYSTS ; EVOLUTION ; NITROGEN ; IRON ; COBALT
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.
语种英语
WOS记录号WOS:000414724700029
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149748
专题中国科学院大连化学物理研究所
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
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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.
APA Ye, Yifan.,Li, Haobo.,Cai, Fan.,Yan, Chengcheng.,Si, Rui.,...&Bao, Xinhe.(2017).Two-Dimensional Mesoporous Carbon Doped with Fe-N Active Sites for Efficient Oxygen Reduction.ACS CATALYSIS,7(11),7638-7646.
MLA Ye, Yifan,et al."Two-Dimensional Mesoporous Carbon Doped with Fe-N Active Sites for Efficient Oxygen Reduction".ACS CATALYSIS 7.11(2017):7638-7646.
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