Promotional effect of Pd single atoms on Au nanoparticles supported on silica for the selective hydrogenation of acetylene in excess ethylene

Guang Xian Pei, Xiao Yan Liu, Aiqin Wang, Lin Li, Yanqiang Huang, Tao Zhang, Jonathan W. Lee, Ben W.L. Jang, Chung Yuan Mou

Research output: Contribution to journalArticlepeer-review

114 Citations (Scopus)

Abstract

A Pd single-atom alloy (SAA) structure was constructed by alloying Pd with Au supported on silica. The XRD and HRTEM results demonstrated that the addition of a small amount of Pd efficiently prevented the sintering of Au nanoparticles. The DRIFTS and EXAFS results confirmed that the Pd SAA structure was formed when the atomic ratios of Pd/Au were lower than 0.025. The Pd SAA structure exhibits a much better catalytic performance for the selective hydrogenation of acetylene in excess ethylene than the corresponding monometallic Au or Pd systems.

Original languageEnglish
Pages (from-to)2043-2051
Number of pages9
JournalNew Journal of Chemistry
Volume38
Issue number5
DOIs
Publication statusPublished - May 2014
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

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