Ultrastable Hydroxyapatite/Titanium-Dioxide-Supported Gold Nanocatalyst with Strong Metal-Support Interaction for Carbon Monoxide Oxidation

Hailian Tang, Fei Liu, Jiake Wei, Botao Qiao, Kunfeng Zhao, Yang Su, Changzi Jin, Lin Li, Jingyue Liu, Junhu Wang, Tao Zhang

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Supported Au nanocatalysts have attracted intensive interest because of their unique catalytic properties. Their poor thermal stability, however, presents a major barrier to the practical applications. Here we report an ultrastable Au nanocatalyst by localizing the Au nanoparticles (NPs) in the interfacial regions between the TiO2 and hydroxyapatite. This unique configuration makes the Au NP surface partially encapsulated due to the strong metal-support interaction and partially exposed and accessible by the reaction molecules. The strong interaction helps stabilizing the Au NPs while the partially exposed Au NP surface provides the active sites for reactions. Such a catalyst not only demonstrated excellent sintering resistance with high activity after calcination at 800°C but also showed excellent durability that outperforms a commercial three-way catalyst in a simulated practical testing, suggesting great potential for practical applications.

Original languageEnglish (US)
JournalAngewandte Chemie - International Edition
DOIs
StateAccepted/In press - 2016

Fingerprint

Durapatite
Carbon Monoxide
Hydroxyapatite
Carbon monoxide
Gold
Titanium dioxide
Metals
Nanoparticles
Oxidation
Catalysts
Calcination
Durability
Thermodynamic stability
Sintering
Molecules
titanium dioxide
Testing

Keywords

  • Gold
  • Heterogeneous catalysis
  • Metal-support interactions
  • Nanoparticles
  • Surface chemistry

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis

Cite this

Ultrastable Hydroxyapatite/Titanium-Dioxide-Supported Gold Nanocatalyst with Strong Metal-Support Interaction for Carbon Monoxide Oxidation. / Tang, Hailian; Liu, Fei; Wei, Jiake; Qiao, Botao; Zhao, Kunfeng; Su, Yang; Jin, Changzi; Li, Lin; Liu, Jingyue; Wang, Junhu; Zhang, Tao.

In: Angewandte Chemie - International Edition, 2016.

Research output: Contribution to journalArticle

Tang, Hailian ; Liu, Fei ; Wei, Jiake ; Qiao, Botao ; Zhao, Kunfeng ; Su, Yang ; Jin, Changzi ; Li, Lin ; Liu, Jingyue ; Wang, Junhu ; Zhang, Tao. / Ultrastable Hydroxyapatite/Titanium-Dioxide-Supported Gold Nanocatalyst with Strong Metal-Support Interaction for Carbon Monoxide Oxidation. In: Angewandte Chemie - International Edition. 2016.
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AU - Wei, Jiake

AU - Qiao, Botao

AU - Zhao, Kunfeng

AU - Su, Yang

AU - Jin, Changzi

AU - Li, Lin

AU - Liu, Jingyue

AU - Wang, Junhu

AU - Zhang, Tao

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