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Effect of Cu loading on the catalytic performance of Fe–Al–Cu for water-gas shift reaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
42416 45924 2009 7 PDF Available
Title
Effect of Cu loading on the catalytic performance of Fe–Al–Cu for water-gas shift reaction
Abstract

We have previously reported Fe–Al–Cu catalysts prepared by the sol–gel method to exhibit superior water-gas shift performance compared to catalysts of similar composition prepared by precipitation/impregnation techniques. The difference in performance was ascribed to the formation of the γ-Fe2O3 structure and a better incorporation and distribution of Cu in the iron oxide matrix. In the current study, the effect of the Cu loading level was examined for its influence on surface and structural properties, and in turn, catalytic performance. Catalysts with various Cu loading levels were evaluated at steady state at different reaction temperatures. In situ X-ray diffraction was used to monitor crystalline phases present in catalysts with different Cu loadings and phase evolution during reduction. The role of Cu loading in γ-Fe2O3 structure formation was studied using X-ray diffraction and Mössbauer spectroscopy techniques.

Graphical abstractFe–Al–Cu catalysts prepared by a sol–gel technique show low-temperature activity as well as high-temperature stability. Cu loading as well as synthesis technique appear to determine the crystalline phase of the iron oxide phase.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Water-gas shift; Fe–Al–Cu; Cu loading; Cr-free; Sol–gel; α-Fe2O3; γ-Fe2O3; Magnetite; Mössbauer
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Effect of Cu loading on the catalytic performance of Fe–Al–Cu for water-gas shift reaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 357, Issue 1, 31 March 2009, Pages 66–72
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
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