Document Detail


The role of copper in catalytic performance of a Fe-Cu-Al-O catalyst for water gas shift reaction.
MedLine Citation:
PMID:  23323268     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A Fe-Cu-Al-O water gas shift catalyst with a Fe : Cu atomic ratio of 4 : 1 upon pretreatment at 350 °C in H(2) exhibits a conversion higher than a physical mixture of Fe-Al-O and Cu-Al-O by ∼40% over a temperature range of 300 °C-450 °C. In situ ambient pressure X-ray photoelectron spectroscopy studies suggest that the surface region of Fe-Cu-Al-O was restructured into a double-layer structure consisting of a surface layer of Fe(3)O(4) and a metallic Cu layer below it upon pretreatment at 350 °C. The strong metal (Cu)-oxide (Fe(3)O(4)) interface effect of this double layer structure enhances the catalytic activity of Fe(3)O(4) in WGS.
Authors:
Yingchun Ye; Lei Wang; Shiran Zhang; Yuan Zhu; Junjun Shan; Franklin Feng Tao
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-16
Journal Detail:
Title:  Chemical communications (Cambridge, England)     Volume:  -     ISSN:  1364-548X     ISO Abbreviation:  Chem. Commun. (Camb.)     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9610838     Medline TA:  Chem Commun (Camb)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA. ftao@nd.edu.
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