Carbon-supported Pd-Pt cathode electrocatalysts for proton exchange membrane fuel cells

	Carbon-supported Pd-Pt cathode electrocatalysts for proton exchange membrane fuel cells
	Tang, Yongfu 1,2; Zhang, Huamin 1; Zhong, Hexiang 1; Xu, Ting 1,2; Jin, Hong 1,2
刊名	journal of power sources
	2011-04-01
卷号	196 期号:7 页码:3523-3529
关键词	Proton exchange membrane fuel cells Oxygen reduction reaction Carbon-supported Pd-Pt alloy Low-platinum electrocatalyst
ISSN号	待补充
通讯作者	张华民
产权排序	1,1
中文摘要	carbon-supported pd-pt cathode electrocatalysts for proton exchange membrane fuel cells
英文摘要	a series of carbon-supported pd-pt alloy (pd-pt/c) catalysts for oxygen reduction reaction (orr) with low-platinum content are synthesized via a modified sodium borohydride reduction method. the structure of as-prepared catalysts is characterized by powder x-ray diffraction (xrd) and transmission electron microscope (tem) measurements. the prepared pd-pt/c catalysts with alloy form show face-centeredcubic (fcc) structure. the metal particles of pd-pt/c catalysts with mean size of around 4-5 nm are uniformly dispersed on the carbon support. the electrocatalytic activities for orr of these catalysts are investigated by rotating disk electrode (rde), cyclic voltammetry (cv), single cell measurements and electrochemical impedance spectra (eis) measurements. the results suggest that the electrocatalytic activities of pd-pt/c catalysts with low platinum are comparable to that of the commercial pt/c with the same metal loading. the maximum power density of mea with a pd-pt/c catalyst, the pd/pt mass ratio of which is 7:3, is about 1040 mw cm(-2). (c) 2010 elsevier b.v. all rights reserved.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; energy & fuels
研究领域[WOS]	electrochemistry ; energy & fuels
关键词[WOS]	oxygen reduction reaction ; phosphoric-acid ; catalytic-activity ; surface ; nanoparticles ; platinum ; alloys ; oxidation ; pemfc
收录类别	SCI
语种	英语
WOS记录号	WOS:000289325000019
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/115689]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Tang, Yongfu,Zhang, Huamin,Zhong, Hexiang,et al. Carbon-supported Pd-Pt cathode electrocatalysts for proton exchange membrane fuel cells[J]. journal of power sources,2011,196(7):3523-3529.
APA	Tang, Yongfu,Zhang, Huamin,Zhong, Hexiang,Xu, Ting,&Jin, Hong.(2011).Carbon-supported Pd-Pt cathode electrocatalysts for proton exchange membrane fuel cells.journal of power sources,196(7),3523-3529.
MLA	Tang, Yongfu,et al."Carbon-supported Pd-Pt cathode electrocatalysts for proton exchange membrane fuel cells".journal of power sources 196.7(2011):3523-3529.