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Catalysis Letters

, Volume 144, Issue 12, pp 2086–2090 | Cite as

High Activity of Gold/Tin-Dioxide Catalysts for Low-Temperature CO Oxidation: Application of a Reducible Metal Oxide to a Catalyst Support

  • Yasushi Maeda
  • Tomoki Akita
  • Masanori Kohyama
Article

Abstract

Au/SnO2 catalysts were prepared by both the solid grinding (SG) method and the deposition precipitation (DP) method. Compared to samples prepared by the DP method, the SG samples showed remarkably high activity for low-temperature CO oxidation, because of a more efficient Au deposition on SnO2 by the SG method. Detailed analysis revealed that the perimeter interface between Au and SnO2 is the active site for catalysis. The present results suggest that the activity of Au/oxide catalysts is associated with the reducibility of the metal oxide supports at the perimeter interface.

Graphical Abstract

Keywords

Heterogeneous catalysis CO oxidation Oxide supports Gold Tin-Dioxide Perimeter interface 

Notes

Acknowledgments

This work was supported by JSPS KAKENHI Grant number 26286054.

Supplementary material

10562_2014_1376_MOESM1_ESM.docx (431 kb)
Supplementary material 1 (DOCX 431 kb)

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Research Institute for Ubiquitous Energy DevicesNational Institute of Advanced Industrial Science and Technology (AIST)IkedaJapan

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