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The role of active phase in Ce modified BiMo catalysts for oxidative dehydrogenation of 1-butene

Paper ID Volume ID Publish Year Pages File Format Full-Text
53313 46962 2016 5 PDF Available
Title
The role of active phase in Ce modified BiMo catalysts for oxidative dehydrogenation of 1-butene
Abstract

•Ce modified BiMo catalysts exhibit superior activity and stability in ODH reaction.•The oxygen mobility of catalysts can be enhanced by the addition of Ce.•The roles of active phases in BiMoCex are proposed.

BiMoCex catalysts (x = 0–0.4) were prepared by co-precipitation method and tested in the oxidative dehydrogenation (ODH) of 1-butenes to 1,3-butadiene. The results indicate that the cerium content has significant effects on the performance of catalyst. BiMoCe0.2 exhibits the superior activity and stability during the 100 h test. X-ray photoelectron spectroscopy (XPS), temperature-programmed re-oxidation (TPRO), 1-Butene temperature-programmed desorption (TPD) and pulse O2 adsorption characterization reveal that the oxygen mobility and the adsorption ability of 1-butene of catalysts are two crucial factors determining catalytic performance in ODH reaction. The active phases on BiMoCex play different roles in the reaction.

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Keywords
Bismuth molybdenum; Cerium; Oxidative dehydrogenation; 1-Butene; Active phases
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The role of active phase in Ce modified BiMo catalysts for oxidative dehydrogenation of 1-butene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 264, 15 April 2016, Pages 180–184
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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