Selective hydrogenation of ethyl benzoate over Ni–B amorphous alloys supported on γ-Al2O3

Selective hydrogenation of ethyl benzoate over Ni–B amorphous alloys supported on γ-Al2O3 A series of Ni–B amorphous alloys supported on γ-Al2O3 was prepared by an impregnation chemical reduction method and tested in the selective hydrogenation of ethyl benzoate to ethyl cyclohexane carboxylate. The effect of different metal additives on the activity of the supported Ni–B amorphous alloys was investigated. It was found that the addition of small amounts of Pd to Ni–B amorphous alloy supported on γ-Al2O3 could markedly improve its activity and the yield of ethyl cyclohexane carboxylate can reach 88.1 % under the optimal reaction conditions. Furthermore, this catalyst could be recycled eight times without appreciable loss of its initial activity, much better than the unsupported one. The Ni–Pd–B amorphous alloy was proven to be highly dispersed on the surface and in the pores of γ-Al2O3, resulting in its larger BET area, more active Ni species, better stability, and hence accounting for its good catalytic performance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Selective hydrogenation of ethyl benzoate over Ni–B amorphous alloys supported on γ-Al2O3

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Publisher
Springer Netherlands
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1744-0
Publisher site
See Article on Publisher Site

Abstract

A series of Ni–B amorphous alloys supported on γ-Al2O3 was prepared by an impregnation chemical reduction method and tested in the selective hydrogenation of ethyl benzoate to ethyl cyclohexane carboxylate. The effect of different metal additives on the activity of the supported Ni–B amorphous alloys was investigated. It was found that the addition of small amounts of Pd to Ni–B amorphous alloy supported on γ-Al2O3 could markedly improve its activity and the yield of ethyl cyclohexane carboxylate can reach 88.1 % under the optimal reaction conditions. Furthermore, this catalyst could be recycled eight times without appreciable loss of its initial activity, much better than the unsupported one. The Ni–Pd–B amorphous alloy was proven to be highly dispersed on the surface and in the pores of γ-Al2O3, resulting in its larger BET area, more active Ni species, better stability, and hence accounting for its good catalytic performance.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 28, 2014

References

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