Jump to main content
Jump to site search

Volume 188, 2016
Previous Article Next Article

Acetylene hydrogenation over structured Au–Pd catalysts

Author affiliations

Abstract

AuPd nanoparticles were prepared following a methodology designed to produce core–shell structures (an Au core and a Pd shell). Characterisation suggested that slow addition of the shell metal favoured deposition onto the pre-formed core, whereas more rapid addition favoured the formation of a monometallic Pd phase in addition to some nanoparticles with the core–shell morphology. When used for the selective hydrogenation of acetylene, samples that possessed monometallic Pd particles favoured over-hydrogenation to form ethane. A sample prepared by the slow addition of a small amount of Pd resulted in the formation of a core–shell structure but with an incomplete Pd shell layer. This material exhibited a completely different product selectivity with ethylene and oligomers forming as the major products as opposed to ethane. The improved performance was thought to be as a result of the absence of Pd particles, which are capable of forming a Pd-hydride phase, with enhanced oligomer selectivity associated with reaction on uncovered Au atoms.

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Nov 2015, accepted on 24 Nov 2015 and first published on 24 Nov 2015


Article type: Paper
DOI: 10.1039/C5FD00188A
Citation: Faraday Discuss., 2016,188, 499-523
  •   Request permissions

    Acetylene hydrogenation over structured Au–Pd catalysts

    A. J. McCue, R. T. Baker and J. A. Anderson, Faraday Discuss., 2016, 188, 499
    DOI: 10.1039/C5FD00188A

Search articles by author

Spotlight

Advertisements