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

doi:10.1021/jacs.5b11306

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 journal › Article › peer-review

326 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 language	English (US)
Pages (from-to)	56-59
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	138
Issue number	1
DOIs	https://doi.org/10.1021/jacs.5b11306
State	Published - Jan 13 2016

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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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.",

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AU - Tang, Hailian

AU - Wei, Jiake

AU - Liu, Fei

AU - Qiao, Botao

AU - Pan, Xiaoli

AU - Li, Lin

AU - Liu, Jingyue

AU - Wang, Junhu

AU - Zhang, Tao

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AB - 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.

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Strong Metal-Support Interactions between Gold Nanoparticles and Nonoxides

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