Pumice-supported Cu-Pd catalysts: Influence of copper on the activity and selectivity of palladium in the hydrogenation of phenylacetylene and but-1-ene

L. Guczi, Z. Schay, G. Stefler, L. F. Liotta, G. Deganello, A. M. Venezia

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

Pumice-supported copper-palladium catalysts prepared from organometallic precursor have been tested in the hydrogenation of phenylacetylene and in the hydrogenation/isomerization of the but-1-ene. The structure and catalytic behaviour of the bimetallic catalysts depended on the different temperatures of reduction. The presence of CuO or Cu metal in an alloyed state with Pd influenced the two reactions. The system containing CuO is the most active and selective towards the formation of the monoalkene in the hydrogenation of the highly unsaturated hydrocarbon. The system containing Cu partially alloyed with Pd is more active and selective towards the isomerization of the but-1-ene. The performance in the two reactions is discussed in terms of the electronic effect prevailing when CuO is present and in terms of the geometric ensemble size variation prevailing with the Cu-Pd system.

Original languageEnglish
Pages (from-to)456-462
Number of pages7
JournalJournal of Catalysis
Volume182
Issue number2
Publication statusPublished - 1999

Fingerprint

pumice
Palladium
Abrasives
Hydrogenation
hydrogenation
palladium
Copper
selectivity
Isomerization
catalysts
copper
isomerization
Catalysts
Organometallics
Hydrocarbons
hydrocarbons
Metals
electronics
metals
1-butene

Keywords

  • Pd-Cu/pumice catalysts
  • Selective hydrogenation of alkyne derivatives
  • Structure/activity relationship

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Pumice-supported Cu-Pd catalysts : Influence of copper on the activity and selectivity of palladium in the hydrogenation of phenylacetylene and but-1-ene. / Guczi, L.; Schay, Z.; Stefler, G.; Liotta, L. F.; Deganello, G.; Venezia, A. M.

In: Journal of Catalysis, Vol. 182, No. 2, 1999, p. 456-462.

Research output: Contribution to journalArticle

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AU - Guczi, L.

AU - Schay, Z.

AU - Stefler, G.

AU - Liotta, L. F.

AU - Deganello, G.

AU - Venezia, A. M.

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AB - Pumice-supported copper-palladium catalysts prepared from organometallic precursor have been tested in the hydrogenation of phenylacetylene and in the hydrogenation/isomerization of the but-1-ene. The structure and catalytic behaviour of the bimetallic catalysts depended on the different temperatures of reduction. The presence of CuO or Cu metal in an alloyed state with Pd influenced the two reactions. The system containing CuO is the most active and selective towards the formation of the monoalkene in the hydrogenation of the highly unsaturated hydrocarbon. The system containing Cu partially alloyed with Pd is more active and selective towards the isomerization of the but-1-ene. The performance in the two reactions is discussed in terms of the electronic effect prevailing when CuO is present and in terms of the geometric ensemble size variation prevailing with the Cu-Pd system.

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