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Effect of phase composition between nano γ- and χ-Al2O3 on Pt/Al2O3 catalyst in CO oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
52049 46863 2008 5 PDF Available
Title
Effect of phase composition between nano γ- and χ-Al2O3 on Pt/Al2O3 catalyst in CO oxidation
Abstract

Alumina supports were prepared by solvothermal method of a mixed solution of toluene and butan-1-ol for various chi/gamma phase compositions and the Pt/Al2O3 catalyst was prepared by the incipient wetness impregnation technique. The catalysts were evaluated in the carbon monoxide oxidation. Increasing amount of %chi phase in the alumina supports has roughly the same BET surface area. The different alumina supports were affected on the Pt dispersion on alumina. The pure chi alumina and pure gamma alumina supports had the same effect of catalyst activity. In the various chi/gamma phase compositions, it was found that Pt dispersion and catalyst activity are lower than pure gamma and chi phases for alumina support with 10% chi. The alumina supports with 30–70% chi gave higher dispersion and activity than pure phase and 10% chi support.

Keywords
γ-Al2O3; χ-Al2O3; Phase composition; Pt/Al2O3; CO oxidation
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Effect of phase composition between nano γ- and χ-Al2O3 on Pt/Al2O3 catalyst in CO oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 4, 15 March 2008, Pages 546–550
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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