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

doi:10.1002/chem.201103674

CORC > 北京大学 > 化学与分子工程学院

	Supported Pd-Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol
	Yin, Zhen ; Zhou, Wu ; Gao, Yongjun ; Ma, Ding ; Kiely, Christopher J. ; Bao, Xinhe
刊名	chemistry a european journal
	2012
关键词	copper electrochemistry nanoparticles palladium supported catalysts ALCOHOL FUEL-CELLS FORMIC-ACID OXIDATION OXYGEN REDUCTION ELECTRONIC-STRUCTURE ELECTROCATALYTIC PROPERTIES PALLADIUM CATALYSTS ALKALINE-SOLUTION COPPER SURFACE ELECTROOXIDATION
DOI	10.1002/chem.201103674
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.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000302354500014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Multidisciplinary; SCI(E); EI; 59; ARTICLE; 16; 4887-4893; 18
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/233861]
专题	化学与分子工程学院
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.
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.
MLA	Yin, Zhen,et al."Supported Pd-Cu Bimetallic Nanoparticles That Have High Activity for the Electrochemical Oxidation of Methanol".chemistry a european journal (2012).