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题名: Nitrogen-doped carbon xerogels as novel cathode electrocatalysts for oxygen reduction reaction in direct borohydride fuel cells
作者: Jin, Hong1;  Li, Jinyang1;  Chen, Fuyu1;  Gao, Lianxing1;  Zhang, Huamin2;  Liu, Dejun1;  Liu, Qingyu1
关键词: Nitrogen-doped carbon xerogel ;  Oxygen reduction reaction ;  Electrocatalyst ;  Durability ;  Direct borohydride fuel cell
刊名: ELECTROCHIMICA ACTA
发表日期: 2016-12-20
DOI: 10.1016/j.electacta.2016.10.196
卷: 222, 页:438-445
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
英文摘要: As a novel catalyst for oxygen reduction reaction (ORR), nitrogen-doped carbon xerogel was prepared via a sol-gel followed by the subsequent pyrolysis in ammonia atmosphere and post-treatment process. The resultant catalysts were characterized by BrunauereEmmetteTeller (BET), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) analysis and electrochemical measurements. The role of metal in the catalyst was studied by comparing catalytic activities of the catalysts with and without post-treatment. Results show that the catalyst with nitrogen doped on the surface possesses an amorphous microstructure. The catalysts with and without post-treatment showed almost the same ORR electrocatalytic activities, which clearly demonstrated the negligible influence of metal removal on ORR performance. The catalyst with post-treatment displayed comparable ORR activity to that of Pt/C in alkaline medium as well as superior stability. A maximum power density of 115 mW cm(-2) at 40 degrees C was achieved on the single cell with the as-prepared catalyst as cathode, demonstrating its application as promising alternative for Pt-based electrocatalysts in direct borohydride fuel cells. (C) 2016 Elsevier Ltd. All rights reserved.
关键词[WOS]: CATALYST ;  STORAGE
语种: 英语
WOS记录号: WOS:000392566200050
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/151887
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.Shenyang Agr Univ, Coll Engn, Shenyang 110866, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

Recommended Citation:
Jin, Hong,Li, Jinyang,Chen, Fuyu,et al. Nitrogen-doped carbon xerogels as novel cathode electrocatalysts for oxygen reduction reaction in direct borohydride fuel cells[J]. ELECTROCHIMICA ACTA,2016,222:438-445.
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