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Performance of CuO/Al2O3 Catalysts Promoted by SnO2 and ZrO2 in the Selective Oxidation of Carbon Monoxide

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Abstract

The effect of added SnO2 and ZrO2 to CuO/Al2O3 catalysts was investigated with reference to the oxygen spillover phenomena in the selective oxidation of carbon monoxide. The TPR and TPO analyses indicated that SnO2 and ZrO2 addition caused oxygen migration and induced the formation of high concentrations of active oxygen species on the SnO2 and ZrO2 surface. The catalytic activities of SnO2 and ZrO2 supported CuO/Al2O3 catalysts were superior to that for CuO/Al2O3 catalysts in the selective oxidation of carbon monoxide. Oxygen, when absorbed to the SnO2 and ZrO2 surface can spill over to the CuO phase and easily react with carbon monoxide. Consequently, the addition of SnO2 and ZrO2 led to significantly improved activities. This can be attributed to the enhanced migration of oxygen to the catalyst surface.

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Acknowledgments

This research was supported by WCU (World Class University) program through the Korea science and Engineering Foundation funded by the Ministry of Education, Science and Technology (400-2008-0230). The authors wish to acknowledge support from the Seoul Renewable Energy Research Consortium (Seoul R & BD Program)

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Authors and Affiliations

  1. School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul, 151-742, Republic of Korea

    Mi Yeong Kang, Wooyoung Kim, Ji Bong Joo, Nam Dong Kim, Hyeong Jin Yun & Jongheop Yi

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  1. Mi Yeong Kang
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  2. Wooyoung Kim
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  3. Ji Bong Joo
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  4. Nam Dong Kim
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  5. Hyeong Jin Yun
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  6. Jongheop Yi
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Correspondence to Jongheop Yi.

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Kang, M.Y., Kim, W., Joo, J.B. et al. Performance of CuO/Al2O3 Catalysts Promoted by SnO2 and ZrO2 in the Selective Oxidation of Carbon Monoxide. Catal Lett 132, 417–421 (2009). https://doi.org/10.1007/s10562-009-0141-6

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  • DOI: https://doi.org/10.1007/s10562-009-0141-6

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