Strong Metal-Support Interactions between Gold Nanoparticles and Nonoxides

Hailian Tang, Jiake Wei, Fei Liu, Botao Qiao, Xiaoli Pan, Lin Li, Jingyue Liu, Junhu Wang, Tao Zhang

Research output: Contribution to journalArticle

143 Scopus citations

Abstract

The strong metal-support interaction (SMSI) is of great importance for supported catalysts in heterogeneous catalysis. We report the first example of SMSI between Au nanoparticles (NPs) and hydroxyapatite (HAP), a nonoxide. The reversible encapsulation of Au NPs by HAP support, electron transfer, and changes in CO adsorption are identical to the classic SMSI except that the SMSI of Au/HAP occurred under oxidative condition; the opposite condition for the classical SMSI. The SMSI of Au/HAP not only enhanced the sintering resistance of Au NPs upon calcination but also improved their selectivity and reusability in liquid-phase reaction. It was found that the SMSI between Au and HAP is general and could be extended to other phosphate-supported Au systems such as Au/LaPO4. This new discovery may open a new way to design and develop highly stable supported Au catalysts with controllable activity and selectivity.

Original languageEnglish (US)
Pages (from-to)56-59
Number of pages4
JournalJournal of the American Chemical Society
Volume138
Issue number1
DOIs
StatePublished - Jan 13 2016

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ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

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