PEMFC商用催化剂电催化活性和寿命研究(英文)

CORC > 厦门大学 > 2004年第10卷

	PEMFC商用催化剂电催化活性和寿命研究(英文); Electrocatalytic and Lifetime Studies of Commercial Catalystsin a PEMFC
	程璇 ; 马艳芸 ; 齐丽 ; 彭程 ; 陈羚 ; 赵隽 ; 张颖 ; 范钦柏 ; CHENG Xuan
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract9013.shtml
	2004-05-28
关键词	质子交换膜燃料电池电催化活性寿命商用催化剂 PEMFC electrocatalytic activity lifetime commercial catalyst
英文摘要	采用自设计的特制H 形电解槽模拟单个氢空气质子交换膜燃料电池运作,并以电化学方法、SEM及XRD等技术研究两种商用催化剂,即碳载铂(Pt/C)和纯铂钌(Pt Ru)的电催化活性、表面形貌及其结构和寿命.同时对比了两种催化剂分别放在H 形电解槽和常规电解槽中运行情况的测试结果.实验表明,经过H 形电解槽运行后的催化剂,其循环伏安曲线表征氢吸脱的特征峰分别发生了正偏移(Pt/C电极)和负偏移(Pt Ru电极),且对应的峰电流呈现减小的趋势(特别是Pt/C电极).一氧化碳的毒化造成纯铂钌的电催化活性显著下降,其影响是不可逆的.; A particularly designed H-type cell was used to simulate the operating condition of a hydrogen-air proton exchange membrane fuel cell (PEMFC). The electrocatalytic activity, morphology, structure and lifetime of commercially available catalysts, carbon support platinum (Pt/C) and unsupported platinum-ruthenium (Pt-Ru), were preliminary studied by carrying out electrochemical measurements and by SEM, XRD techniques. The catalysts were simultaneously tested in the H-cell under operation, and also separately tested in a conventional electrochemical cell for comparison. It was found that the characteristic peaks of hydrogen adsorption/desorption on cyclic voltammograms shifted considerably to a more positive direction for Pt/C, while a more negative direction for Pt-Ru. The magnitude of the peak current densities on CV curves, especially observed from Pt/C catalyst, tended to reduce after the lifetime tests. The electrocatalytic activity of Pt-Ru was significantly lower due to carbon monoxide poison, and the effect of CO on catalyst was irreversible.; 作者联系地址：厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室,厦门大学材料科学与工程系,厦门大学材料科学与工程系,厦门大学化学系固体表面物理化学国家重点实验室,厦门大学材料科学与工程系,美国气体技术研究院福建厦门,361005 ,福建厦门,361005 ,福建厦门,361005 ,福建厦门,361005 ,福建厦门,361005 ,福建厦门,361005 ,福建厦门,361005 ,伊利诺伊斯60018; Author's Address: *1, MA Yan-yun~1, QI Li~1, PENG Cheng~2, CHEN Ling~2, ZHAO Jun~1, ZHANG Ying~2,FAN Qin-bai~3 ysical Chemistry of Solid Surfaces,Xiamen University, Xiamen 361005,China, 2.Department of Materials Science & Engineering, Xiamen University, Xiamen 361005, China, 3. Gas Technology Institute,Des Plaines, IL 60018, USA
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/57827]
专题	2004年第10卷
推荐引用方式 GB/T 7714	程璇,马艳芸,齐丽,等. PEMFC商用催化剂电催化活性和寿命研究(英文), Electrocatalytic and Lifetime Studies of Commercial Catalystsin a PEMFC[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract9013.shtml,2004.
APA	程璇.,马艳芸.,齐丽.,彭程.,陈羚.,...&CHENG Xuan.(2004).PEMFC商用催化剂电催化活性和寿命研究(英文).http://electrochem.xmu.edu.cn/CN/abstract/abstract9013.shtml.
MLA	程璇,et al."PEMFC商用催化剂电催化活性和寿命研究(英文)".http://electrochem.xmu.edu.cn/CN/abstract/abstract9013.shtml (2004).