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学科主题: 物理化学
题名: Nitrogen-doped carbon xerogel as high active oxygen reduction catalyst for direct methanol alkaline fuel cell
作者: Liu, Sisi1, 2;  Zhang, Huamin1;  Xu, Zhuang1, 2;  Zhong, Hexiang1;  Jin, Hong2, 3
通讯作者: 张华民 ;  钟和香
关键词: Nitrogen-doped carbon xerogel ;  Oxygen reduction reaction ;  Methanol tolerance ;  Direct methanol alkaline fuel cells
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2012-12-01
DOI: 10.1016/j.ijhydene.2012.09.122
卷: 37, 期:24, 页:19065-19072
收录类别: SCI
文章类型: Article
部门归属: DNL17
项目归属: DNL17
产权排名: 1,1
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: A novel catalyst based on nitrogen-doped carbon xerogel for oxygen reduction reaction (ORR) was prepared via a sol-gel process, following by the subsequent pyrolysis under ammonia atmosphere. The catalytic activity in alkaline media was optimized by tuning the metal (cobalt) ratio to the gel precursor. Sample with the optimum activity was characterized by transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) analysis and electrochemical measurements. Results show that the catalyst possesses an amorphous microstructure with nitrogen doped on the surface. The nitrogen-doped carbon xerogel displays comparable ORR activity and superior methanol tolerance than Pt/C in alkaline medium, demonstrating its promising application in direct methanol alkaline fuel cells as nonprecious cathode catalyst. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: HIGH ELECTROCATALYTIC ACTIVITY ;  ANION-EXCHANGE MEMBRANE ;  METAL-FREE ;  CATHODE CATALYST ;  NANOTUBE CATALYSTS ;  NANOPARTICLES ;  POLYPYRROLE ;  PERFORMANCE ;  STABILITY ;  NITRIDES
语种: 英语
WOS记录号: WOS:000313923900051
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118015
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, Div Energy Storage, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Shenyang Agr Univ, Dept Engn, Shenyang 110866, Peoples R China

Recommended Citation:
Liu, Sisi,Zhang, Huamin,Xu, Zhuang,et al. Nitrogen-doped carbon xerogel as high active oxygen reduction catalyst for direct methanol alkaline fuel cell[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2012,37(24):19065-19072.
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