Role of Surface Oxides on Model Nanocatalysts in Catalytic Activity of CO Oxidation

Chapter

Abstract

Rapid advances in the nanosciences and colloidal chemistry have generated new opportunities in the fields of physical and chemical science, including tuning the size, shape, and composition of noble metals at nanoscale, which have revealed many interesting properties. Studies identifying molecular factors that affect catalytic activity provide the means to control catalytic activity, a significant achievement in catalysis. Several molecular factors, including structural and electronic effects, metal–support interactions, and the presence of a surface oxide layer, have been reported as candidates for improving catalytic activity. Among these factors, the oxide layer on the metal surface is considered to play an important role in determining catalytic activity and there are a growing number of studies in this area. Understanding the chemical reactivity of a metal oxide is a rather complicated issue, requiring significant research to date. We outline here recent experimental work on the role of surface oxide on metal nanoparticles (NPs) that determines the catalytic activity of heterogeneous catalysis, including the effect of oxidation states of nanoparticles on the catalytic activity for model catalysts of single crystals and nanoparticles, with several examples, including Pt, Rh, Ru, and Pd.

Keywords

Platinum Bromide Catalysis Carbon Monoxide Palladium 

Notes

Acknowledgments

This work was supported by the WCU (World Class University) program (31-2008-000-10055-0 and 2012R1A2A1A01009249) through the National Research Foundation, the Research Center Program (CA1201) of IBS (Institute for Basic Science), and from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Jeong Young Park
    • 1
    • 2
  • Kamran Qadir
    • 1
    • 2
  • Sun Mi Kim
    • 1
    • 2
  1. 1.Graduate School of EEWS (WCU) and NanoCentury KIKorea Advanced Institute of Science and Technology (KAIST)DaejeonRepublic of Korea
  2. 2.Center for Nanomaterials and Chemical ReactionsInstitute for Basic ScienceDaejeonRepublic of Korea

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