Supported Pd-Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol

	Supported Pd-Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol
	Yin, Zhen 1; Zhou, Wu 3; Gao, Yongjun 2; Ma, Ding 2; Kiely, Christopher J.3; Bao, Xinhe 1
刊名	chemistry-a european journal
	2012-04-01
卷号	18 期号:16 页码:4887-4893
关键词	copper electrochemistry nanoparticles palladium supported catalysts
通讯作者	马丁 ; 包信和
产权排序	1,1
英文摘要	monodisperse bimetallic pdcu nanoparticles with controllable size and composition were synthesized by a one-step multiphase ethylene glycol (eg) method. adjusting the stoichiometric ratio of the pd and cu precursors afforded nanoparticles with different compositions, such as pd85cu15, pd56cu44, and pd39cu61. the nanoparticles were separated from the solution mixture by extraction with non-polar solvents, such as n-hexane. monodisperse bimetallic pdcu nanoparticles with narrow size-distribution were obtained without the need for a size-selection process. capping ligands that were bound to the surface of the particles were removed through heat treatment when the as-prepared nanoparticles were loaded onto a vulcan xc-72 carbon support. supported bimetallic pdcu nanoparticles showed enhanced electrocatalytic activity towards methanol oxidation compared with supported pd nanoparticles that were fabricated according to the same eg method. for a bimetallic pdcu catalyst that contained 15?% cu, the activity was even comparable to the state-of-the-art commercially available pt/c catalysts. a stem-haadf study indicated that the formation of random solid-solution alloy structures in the bimetallic pd85cu15/c catalysts played a key role in improving the electrochemical activity.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	alcohol fuel-cells ; formic-acid oxidation ; oxygen reduction ; electronic-structure ; electrocatalytic properties ; palladium catalysts ; alkaline-solution ; copper ; surface ; electrooxidation
收录类别	SCI
语种	英语
WOS记录号	WOS:000302354500014
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/118056]
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, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 3.Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA
推荐引用方式 GB/T 7714	Yin, Zhen,Zhou, Wu,Gao, Yongjun,et al. Supported Pd-Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol[J]. chemistry-a european journal,2012,18(16):4887-4893.
APA	Yin, Zhen,Zhou, Wu,Gao, Yongjun,Ma, Ding,Kiely, Christopher J.,&Bao, Xinhe.(2012).Supported Pd-Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol.chemistry-a european journal,18(16),4887-4893.
MLA	Yin, Zhen,et al."Supported Pd-Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol".chemistry-a european journal 18.16(2012):4887-4893.