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题名: Surface functionalization of ZIF-8 with ammonium ferric citrate toward high exposure of Fe-N active sites for efficient oxygen and carbon dioxide electroreduction
作者: Ye, Yifan1, 6;  Cai, Fan1, 6;  Li, Haobo1, 6;  Wu, Haihua1, 6;  Wang, Guoxiong1;  Li, Yanshuo2;  Miao, Shu1;  Xie, Songhai3;  Si, Rui4;  Wang, Jian5;  Bao, Xinhe1
关键词: Surface functionalization ;  Zeolitic imidazolate framework ;  Iron-nitrogen active site ;  Oxygen reduction reaction ;  Carbon dioxide electroreduction
刊名: NANO ENERGY
发表日期: 2017-08-01
DOI: 10.1016/j.nanoen.2017.05.042
卷: 38, 页:281-289
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: Isolated metal-nitrogen sites are highly active to catalyze the oxygen and carbon dioxide electroreduction, however, the limited content of isolated metal-nitrogen sites within carbon matrix urgently requires full exposure of the active sites on the surface for efficient catalysis. Herein, post-synthetic modification strategy is explored to selectively confine ammonium ferric citrate on the surface of zeolitic imidazolate framework-8 (ZIF-8) nanoparticles. After pyrolysis, isolated iron-nitrogen sites are generated and located on the carbon matrix surface. The highly exposed iron-nitrogen sites demonstrate excellent mass activity toward oxygen reduction reaction in acidic medium, outperforming most reported non-noble metal catalysts, and also show superior selectivity and mass activity toward carbon dioxide electroreduction compared to most reported noble metal catalysts.
关键词[WOS]: METAL-ORGANIC FRAMEWORKS ;  NITROGEN-DOPED CARBON ;  ZEOLITIC IMIDAZOLATE FRAMEWORKS ;  REDUCTION REACTION ;  C CATALYSTS ;  FUEL-CELLS ;  IN-SITU ;  ELECTROCATALYST ;  NANOPARTICLES ;  MOLECULES
语种: 英语
WOS记录号: WOS:000405202800033
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152081
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, Dalian Natl Lab Clean Energy, State Key Lab Catalysis,CAS Ctr Excellence Nanosc, Dalian 116023, Peoples R China
2.Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
3.Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
5.Univ Saskatchewan, Canadian Light Source Inc, 44 Innovat Blvd, Saskatoon, SK S7N 2V3, Canada
6.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Ye, Yifan,Cai, Fan,Li, Haobo,et al. Surface functionalization of ZIF-8 with ammonium ferric citrate toward high exposure of Fe-N active sites for efficient oxygen and carbon dioxide electroreduction[J]. NANO ENERGY,2017,38:281-289.
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