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Effect of pH in the preparation of Ni9Fe3Bi1Mo12O51 for oxidative dehydrogenation of n-butene to 1,3-butadiene: Correlation between catalytic performance and oxygen mobility of Ni9Fe3Bi1Mo12O51

Paper ID Volume ID Publish Year Pages File Format Full-Text
52282 46867 2008 7 PDF Available
Title
Effect of pH in the preparation of Ni9Fe3Bi1Mo12O51 for oxidative dehydrogenation of n-butene to 1,3-butadiene: Correlation between catalytic performance and oxygen mobility of Ni9Fe3Bi1Mo12O51
Abstract

A series of Ni9Fe3Bi1Mo12O51 catalysts were prepared by a co-precipitation method with a variation of pH value (pH 3–9), and were applied to the oxidative dehydrogenation of n-butene to 1,3-butadiene in a continuous flow fixed-bed reactor. O2-temperature-programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS) measurements were carried out to determine the oxygen mobility of Ni9Fe3Bi1Mo12O51 catalysts. It was revealed that the catalytic performance of Ni9Fe3Bi1Mo12O51 was closely related to the oxygen mobility of the catalysts. The yield for 1,3-butadiene was monotonically increased with increasing oxygen mobility of Ni9Fe3Bi1Mo12O51 catalysts. Among the catalysts tested, the Ni9Fe3Bi1Mo12O51 catalyst prepared at pH 8 showed the best catalytic performance due to its facile oxygen mobility. Thus, oxygen mobility played a key role in determining the catalytic performance of Ni9Fe3Bi1Mo12O51 catalysts in the oxidative dehydrogenation of n-butene.

Keywords
Multicomponent bismuth molybdate; Effect of pH; C4 raffinate-3; 1,3-Butadiene; Oxidative dehydrogenation
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Effect of pH in the preparation of Ni9Fe3Bi1Mo12O51 for oxidative dehydrogenation of n-butene to 1,3-butadiene: Correlation between catalytic performance and oxygen mobility of Ni9Fe3Bi1Mo12O51
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 5, 20 March 2008, Pages 943–949
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us