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Hydrogen-assisted dechlorination of 1,2-dichloroethane over silica-supported nickel–ruthenium catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
52786 46887 2007 5 PDF Available
Title
Hydrogen-assisted dechlorination of 1,2-dichloroethane over silica-supported nickel–ruthenium catalysts
Abstract

Silica-supported nickel showed high catalytic activity and selectivity to ethylene in the hydrodechlorination of 1,2-dichloroethane at 230–250 °C. In contrast, Ru/SiO2 showed rather low activity and selectivity to ethylene. Introduction of ruthenium to nickel brings in a considerable increase of the overall activity, with only modest decrease of the ethylene selectivity. Although both metals are practically immiscible in solid state, their mutual interaction in the working state of catalyst is significant. The results are interpreted in terms of surface segregation of nickel which is very likely in light of the theory of segregation in bimetallic systems and substantiated by catalysts characterization.

Keywords
1,2-Dichloroethane; Hydrodechlorination; Selectivity for ethylene; Ni–Ru/SiO2; XRD; Synergistic effect
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Hydrogen-assisted dechlorination of 1,2-dichloroethane over silica-supported nickel–ruthenium catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 1, January 2007, Pages 11–15
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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