钯镍合金薄膜电极上甲酸电氧化-去合金化效应

CORC > 厦门大学 > 2009年第15卷

	钯镍合金薄膜电极上甲酸电氧化-去合金化效应; Electrooxidation of Formic Acid on Pd-Ni Alloy Film Electrode-The Effect of Dealloying
	王超 ; 史菲菲 ; 王金意 ; 张涵轩 ; 蔡文斌 ; WANG Chao ; SHI Fei-fei ; WANG Jin-yi ; ZHANG Han-xuan ; CAI Wen-bin
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract8485.shtml
	2009-11-28
关键词	钯镍合金去合金化甲酸电催化 Pd-Ni alloy dealloyment formic acid electrocatalysis
英文摘要	在含PdC l2、N iSO4和乙二胺的弱碱性镀液中,于Au电极上用恒电位电沉积Pd-N i合金薄膜,后经酸性溶液中循环伏安法处理,得到去合金化的Pd-N i电极.扫描电镜以及电化学测试表明,去合金化处理使Pd-N i镀膜表面微观粗糙度增加,比表面积增大;ICP-AES和XPS分析证实合金表层N i的优先溶出造成Pd的富集.去合金化处理的Pd-N i电极电催化氧化甲酸的活性明显优于未处理的Pd-N i电极和多晶Pd电极.; A Pd-Ni alloy film was electrodeposited on Au disc electrode at a constant potential from a weakly basic bath containing PdCl2,NiSO4 and ethylenediamine.The as-deposited film was then subjected to potential cycling in a perchloric acid solution for surface dealloying treatment.The dealloyed Pd-Ni film electrode was examined for the electrocatalytic oxidation of formic acid,and compared with the as-deposited one as well as a Pd film electrode.The FE-SEM and electrochemical measurements on the Pd-Ni films revealed that the dealloying treatment caused a surface roughening and an increase in specific surface reaction area.The ICP-AES and XPS analyses demonstrated that the preferential dissolution of Ni in the dealloying treatment led to a Pd-rich outer layer in the resultant Pd-Ni film.The electrocatalysis measurements indicated that the dealloyed Pd-Ni electrode is superior to the as-deposited Pd-Ni as well as the Pd electrode in terms of the electro-oxidation of formic acid.; 作者联系地址：复旦大学上海市分子催化和功能材料重点实验室化学系;; Author's Address: Shanghai Key Laboratory for Molecular Catalysis and Innovative Materials,Department of Chemistry,Fudan University,Shanghai 200433,China
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/2288/58226]
专题	2009年第15卷
推荐引用方式 GB/T 7714	王超,史菲菲,王金意,等. 钯镍合金薄膜电极上甲酸电氧化-去合金化效应, Electrooxidation of Formic Acid on Pd-Ni Alloy Film Electrode-The Effect of Dealloying[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract8485.shtml,2009.
APA	王超.,史菲菲.,王金意.,张涵轩.,蔡文斌.,...&CAI Wen-bin.(2009).钯镍合金薄膜电极上甲酸电氧化-去合金化效应.http://electrochem.xmu.edu.cn/CN/abstract/abstract8485.shtml.
MLA	王超,et al."钯镍合金薄膜电极上甲酸电氧化-去合金化效应".http://electrochem.xmu.edu.cn/CN/abstract/abstract8485.shtml (2009).