An alternate aqueous phase synthesis of the Pt3Co/C catalyst towards efficient oxygen reduction reaction

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	An alternate aqueous phase synthesis of the Pt3Co/C catalyst towards efficient oxygen reduction reaction
	Huang, Jinjing 2; Ding, Chen 2; Yang, Yongqiang 1,3; Liu, Gang 1,3; Cai, Wen-Bin 2
刊名	CHINESE JOURNAL OF CATALYSIS
	2019-12-01
卷号	40 期号:12 页码:1895-1903
关键词	ORR electrocatalyst Pt-Co alloy Aqueous phase synthesis Dimethylamine borane Structure and property
ISSN号	0253-9837
通讯作者	Cai, Wen-Bin(wbcai@fudan.edu.cn)
英文摘要	Carbon supported Pt-Co alloys are among the most promising electrocatalysts towards oxygen (ORR) for the application in low temperature fuel cells and beyond, thus their facile and green synthesis is highly demanded. Herein we initially report an alternate aqueous phase one-pot synthesis of such catalysts (containing nominally ca. 20 wt.% Pt) based on dimethylamine borane (DMAB) reduction. The as-obtained electrocatalyst (denoted as Pt3Co/C-DMAB) is compared with the ones obtained by NaBH4 and N2H4 center dot H2O reduction (denoted as Pt3Co/C-NaBH4 and Pt3Co/C-N2H4 center dot H2O, respectively) as well as a commercial Pt/C, in terms of the structure and electrocatalytic property. It turns out that Pt3Co/C-DMAB exhibits the highest ORR performance among all the tested samples in an O-2-saturated 0.1 mol/L HClO4, with the mass activity (specific activity) ca. 4 (6) times as large as that for Pt/C. After 10000 cycles of the accelerated degradation test, the half-wave potential for ORR on Pt3Co/C-DMAB decreases only by 4 mV, in contrast to 24 mV for that on Pt/C. Pt3Co/C-NaBH4 or Pt3Co/C-N2H4 center dot H2O shows a specific activity comparable to that for Pt3Co/C-DMAB, but a mass activity similar to that for Pt/C. ICP-AES, TEM, XRD and XPS characterizations indicate that Pt3Co nanoparticles are well-dispersed and alloyed with a mean particle size of ca. 3.4 +/- 0.4 nm, contributing to the prominent electrocatalytic performance of Pt3Co/C-DMAB. This simple aqueous synthetic route may provide an alternate opportunity for developing efficient practical electrocatalysts for ORR. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
资助项目	National Basic Research Program of China (973 Program)[2015CB932303] ; National Natural Science Foundation of China (NSFC)[21733004] ; National Natural Science Foundation of China (NSFC)[21473039] ; International Cooperation Program of Shanghai Science and Technology Committee (STCSM)[17520711200]
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000492801200010
资助机构	National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China (NSFC) ; International Cooperation Program of Shanghai Science and Technology Committee (STCSM)
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136943]
专题	金属研究所_中国科学院金属研究所
通讯作者	Cai, Wen-Bin
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Fudan Univ, Collaborat Innovat Ctr Chem Energy Mat, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Shanghai 200433, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Huang, Jinjing,Ding, Chen,Yang, Yongqiang,et al. An alternate aqueous phase synthesis of the Pt3Co/C catalyst towards efficient oxygen reduction reaction[J]. CHINESE JOURNAL OF CATALYSIS,2019,40(12):1895-1903.
APA	Huang, Jinjing,Ding, Chen,Yang, Yongqiang,Liu, Gang,&Cai, Wen-Bin.(2019).An alternate aqueous phase synthesis of the Pt3Co/C catalyst towards efficient oxygen reduction reaction.CHINESE JOURNAL OF CATALYSIS,40(12),1895-1903.
MLA	Huang, Jinjing,et al."An alternate aqueous phase synthesis of the Pt3Co/C catalyst towards efficient oxygen reduction reaction".CHINESE JOURNAL OF CATALYSIS 40.12(2019):1895-1903.