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	Ultrathin irru nanowire networks with high performance and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells
	Qin, Bowen1,2; Yu, Hongmei1; Gao, Xueqiang1,2; Yao, Dewei1,2; Sun, Xinye1,2; Song, Wei1; Yi, Baolian1; Shao, Zhigang1
刊名	Journal of materials chemistry a
	2018-11-07
卷号	6期号:41页码:20374-20382
ISSN号	2050-7488
DOI	10.1039/c8ta07414c
通讯作者	Yu, hongmei(hmyu@dicp.ac.cn)
英文摘要	Developing highly active and stable hor catalysts still remains a challenging task for alkaline anion exchange membrane fuel cells. a carbon supported irru nanowire catalyst with different compositions was prepared by a soft template method, involving the chemical reduction of iridium and ruthenium complexes using sodium borohydride. the ir1ru1 ultrathin nanowires exhibit higher hydrogen oxidation activity and better stability under alkaline conditions in comparison with commercial pt/c. an electrochemical test demonstrates that the mass and specific activities at an over potential of 50 mv of ir1ru1 nws/c are 4.2 and 3.8 times that of commercial pt/c, respectively. furthermore, the synthesized ir1ru1 nws display better stability against potential cycling due to their unique interconnected structure. after 2000 potential cycles, the electrochemically active surface area (ecsa) of ir1ru1 nws/c reduces only by 2.27%, and the mass activity@50 mv is reduced by 8.21%. the single cell used the as-prepared ir1ru1 nws/c as the anode catalyst and pt/c as the cathode catalyst, and the aaemfc shows a peak power density of more than 485 mw cm(-2), which is about 1.66 fold that of the aaemfc using commercial pt/c as the anode catalyst (292 mw cm(-2)). these results suggest that carbon supported ultrathin ir1ru1 nw catalysts can be used as substitutes for commercial pt/c for the hor in alkaline media for alkaline anion exchange membrane fuel cell application.
WOS关键词	OXYGEN REDUCTION REACTION ; COATED COPPER NANOWIRES ; ELECTROCATALYST ; CATALYSTS ; MEDIA ; ELECTROLYTES ; BASE ; RU
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000448412700051
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373125
专题	大连化学物理研究所
通讯作者	Yu, Hongmei
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Grp, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Qin, Bowen,Yu, Hongmei,Gao, Xueqiang,et al. Ultrathin irru nanowire networks with high performance and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells[J]. Journal of materials chemistry a,2018,6(41):20374-20382.
APA	Qin, Bowen.,Yu, Hongmei.,Gao, Xueqiang.,Yao, Dewei.,Sun, Xinye.,...&Shao, Zhigang.(2018).Ultrathin irru nanowire networks with high performance and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells.Journal of materials chemistry a,6(41),20374-20382.
MLA	Qin, Bowen,et al."Ultrathin irru nanowire networks with high performance and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells".Journal of materials chemistry a 6.41(2018):20374-20382.

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