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Highly active Pt-Fe bicomponent catalysts for CO oxidation in the presence and absence of H-2
Xu, Hong; Fu, Qiang; Yao, Yunxi; Bao, Xinhe
刊名ENERGY & ENVIRONMENTAL SCIENCE
2012-04-01
DOI10.1039/c1ee02393d
5期:4页:6313-6320
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology ; Life Sciences & Biomedicine
类目[WOS]Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
研究领域[WOS]Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
关键词[WOS]PREFERENTIAL OXIDATION ; CARBON-MONOXIDE ; BIMETALLIC SURFACES ; ABSOLUTE ELECTRONEGATIVITY ; FE/ZEOLITE CATALYSTS ; ELECTRONIC-STRUCTURE ; SELECTIVE OXIDATION ; CHEMICAL-PROPERTIES ; ALLOY SURFACES ; HYDROGEN
英文摘要Surface Fe ensembles, surface alloyed Fe atoms, and subsurface Fe species have been identified at Pt surfaces on the basis of studies in Fe-Pt(111) model systems and supported Pt-Fe nanoparticles (NPs). The surface Fe ensemble changes to ferrous oxide and forms a highly active and stable "FeO-on-Pt" structure in preferential oxidation of CO in the presence of H-2 (PROX), which, however, gets fully oxidized in CO oxidation in the absence of H-2 (COOX) and becomes inactive in the reaction. The surface alloyed Fe remains stable under the H-2-rich and O-2-rich reaction conditions, which are active for both PROX and COOX reactions. Accordingly, highly efficient Pt-Fe catalysts for the PROX and COOX reactions can be prepared via mild reduction and/or acid leaching.
语种英语
WOS记录号WOS:000301984200007
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143152
专题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
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GB/T 7714
Xu, Hong,Fu, Qiang,Yao, Yunxi,et al. Highly active Pt-Fe bicomponent catalysts for CO oxidation in the presence and absence of H-2[J]. ENERGY & ENVIRONMENTAL SCIENCE,2012,5(4):6313-6320.
APA Xu, Hong,Fu, Qiang,Yao, Yunxi,&Bao, Xinhe.(2012).Highly active Pt-Fe bicomponent catalysts for CO oxidation in the presence and absence of H-2.ENERGY & ENVIRONMENTAL SCIENCE,5(4),6313-6320.
MLA Xu, Hong,et al."Highly active Pt-Fe bicomponent catalysts for CO oxidation in the presence and absence of H-2".ENERGY & ENVIRONMENTAL SCIENCE 5.4(2012):6313-6320.
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