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学科主题: 物理化学
题名: Ni-Co-B catalyst-promoted hydrogen generation by hydrolyzing NaBH4 solution for in situ hydrogen supply of portable fuel cells
作者: Wu, Chuan1;  Bai, Ying1;  Liu, Dan-Xian1;  Wu, Feng1;  Pang, Mei-Li1;  Yi, Bao-Lian2
通讯作者: ChuanWu
关键词: Proton-exchange membrane fuel cell ;  Ni-Co-B catalyst ;  Surface ;  Hydrogen generation ;  NaBH4 ;  Hydrolysis
刊名: CATALYSIS TODAY
发表日期: 2011-07-19
DOI: 10.1016/j.cattod.2011.01.046
卷: 170, 期:1, 页:33-39
收录类别: SCI
文章类型: Article
部门归属: DNL17
项目归属: DNL17
产权排名: 2,6
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
摘要: Ni-Co-B catalyst-promoted hydrogen generation by hydrolyzing NaBH4 solution for in situ hydrogen supply of portable fuel cells
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: A series of Ni-Co-B catalysts were synthesized by a two-step technique, namely, chemical reduction was used to prepare the precursors, and heat-treatment was used to adjust the crystal structures. The structures of the as-prepared Ni-Co-B catalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and nitrogen adsorption-desorption test. The catalytic activities of the Ni-Co-B catalysts for NaBH4 hydrolysis were evaluated in a successive hydrogen generation mode, where a 5% NaBH4 + 1% NaOH solution was pumped into the hydrogen generation reactor with a feeding rate of 5 ml per minute. It is found that the heat-treatment affects the crystal structure, the apparent morphology, the oxidation state, the surface structure, as well as the hydrogen generation performances of the Ni-Co-B catalysts. The sample treated at 673 K achieves an average hydrogen generation rate of 708 ml min(-1) g(-1) (catalyst), which can give successive hydrogen supply for an 115 W portable proton-exchange membrane fuel cell (PEMFC). (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: SODIUM-BOROHYDRIDE SOLUTION ;  COBALT-BASED CATALYSTS ;  BORIDE CATALYST ;  NICKEL ;  ALLOYS ;  METAL ;  NANOPARTICLES ;  BATTERIES ;  XPS
语种: 英语
WOS记录号: WOS:000291799100006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115699
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.Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China

Recommended Citation:
Wu, Chuan,Bai, Ying,Liu, Dan-Xian,et al. Ni-Co-B catalyst-promoted hydrogen generation by hydrolyzing NaBH4 solution for in situ hydrogen supply of portable fuel cells[J]. CATALYSIS TODAY,2011,170(1):33-39.
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