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Potassium and nickel doped β-Mo2C catalysts for mixed alcohols synthesis via syngas

Paper ID Volume ID Publish Year Pages File Format Full-Text
52877 46890 2007 6 PDF Available
Title
Potassium and nickel doped β-Mo2C catalysts for mixed alcohols synthesis via syngas
Abstract

Potassium and nickel doped β-Mo2C catalysts were prepared and their performances of CO hydrogenation were investigated. The main products over β-Mo2C catalyst were hydrocarbons, and only few alcohols were obtained. The potassium promoter resulted in remarkable selectivity shift from hydrocarbons to alcohols over β-Mo2C. Moreover, it was found that the potassium promoter enhanced the ability of chain propagation of β-Mo2C catalyst and resulted in a higher selectivity to C2+OH. When doped by potassium and nickel, β-Mo2C catalyst showed high activity and selectivity for mixed alcohols synthesis, the Ni promoter further enhanced the whole chain propagation to produce alcohols especially for the step of C1OH–C2OH. From the XPS analysis, it had been proved that the formation of higher alcohols might be attributable to the presence of MoIV species, whereas the formation of hydrocarbons was closely associated with the presence of MoII species on the surface of the catalysts.

Keywords
β-Mo2C; Potassium; Nickel; Mixed alcohols synthesis
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Potassium and nickel doped β-Mo2C catalysts for mixed alcohols synthesis via syngas
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 3, March 2007, Pages 513–518
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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