Abstract
Highly active and stable platinum catalysts for propane combustion were prepared by impregnating platinum on zirconia-incorporated silica by combining the high surface area of silica with the exceptional thermal stability of zirconia. The thermal stability of the platinum catalysts was examined after thermal aging at 800 °C for 50 h. The physico-chemical states of the platinum and zirconia were investigated by using various analytical instruments, CO and H2 chemisorption, and temperature-programmed-desorption of ammonia. The platinum catalysts prepared on the zirconia-incorporated silica and treated with hydrogen peroxide showed high catalytic activity and stability in propane combustion. The high dispersion of platinum and the acid site generation achieved due to the incorporation of zirconia on the silica were responsible for the high activity and stability of the catalysts.
Graphical Abstract
Highly active and stable platinum catalysts for propane combustion were prepared by impregnating platinum on zirconia-incorporated silica by combining the high surface area of silica with the exceptional thermal stability of zirconia. The platinum catalysts supported on zirconia-incorporated silica maintained their activity after thermal aging at 800 °C for 50 h.]
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Acknowledgements
This work was supported by the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0094056). TEM photos of the platinum catalysts were obtained from the Korea Basic Science Institute, Gwangju Branch. We also acknowledged the Pohang Accelerator Laboratory for the XAFS measurements.
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Kim, MY., Park, S.M., Seo, G. et al. Highly Stable Platinum Catalysts in Propane Combustion Prepared by Supporting Platinum on Zirconia-Incorporated Silica. Catal Lett 138, 205–214 (2010). https://doi.org/10.1007/s10562-010-0401-5
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DOI: https://doi.org/10.1007/s10562-010-0401-5