Architecture of Pt-Co Bimetallic Catalysts for Catalytic CO Oxidation

	Architecture of Pt-Co Bimetallic Catalysts for Catalytic CO Oxidation
	Xu, Hong; Fu, Qiang; Guo, Xiaoguang; Bao, Xinhe
刊名	chemcatchem
	2012-10-01
卷号	4 期号:10 页码:1645-1652
关键词	carbon dioxide heterogeneous catalysis oxidation platinum supported catalysts
通讯作者	傅强 ; 包信和
产权排序	1,1
英文摘要	pt?co nanocatalysts have been synthesized and tested for both preferential oxidation of co in excess h2 (prox) and co oxidation in the absence of h2 (coox). structural characterization and reaction results suggest that a pt?co catalyst architecture consisting of pt nanoparticles decorated with highly dispersed coo nanostructures is the active structure for both reactions. the highly active coo-on-pt catalysts can be prepared by reduction of as-prepared pt?co catalysts at an intermediate temperature or by reactivation of an acid-leached pt?co catalyst at a similar temperature. a comparative study of pt?fe, pt?co, and pt?ni catalysts reveals that interface confinement effects are dominant in all tmox-on-pt systems (tm=fe, co, and ni). however, the activity and stability in both prox and coox reactions for each of these catalyst systems is variable.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, physical
研究领域[WOS]	chemistry
关键词[WOS]	oxygen reduction reaction ; preferential oxidation ; low-temperature ; electronic-structure ; surface segregation ; alloy nanoparticles ; pt3co nanoparticles ; carbon-monoxide ; shell ; electrocatalysts
收录类别	SCI
语种	英语
WOS记录号	WOS:000309396800022
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/117741]
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	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hong,Fu, Qiang,Guo, Xiaoguang,et al. Architecture of Pt-Co Bimetallic Catalysts for Catalytic CO Oxidation[J]. chemcatchem,2012,4(10):1645-1652.
APA	Xu, Hong,Fu, Qiang,Guo, Xiaoguang,&Bao, Xinhe.(2012).Architecture of Pt-Co Bimetallic Catalysts for Catalytic CO Oxidation.chemcatchem,4(10),1645-1652.
MLA	Xu, Hong,et al."Architecture of Pt-Co Bimetallic Catalysts for Catalytic CO Oxidation".chemcatchem 4.10(2012):1645-1652.