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Synthesis of Ce-doped mesoporous γ-alumina with enhanced catalytic performance for propane dehydrogenation

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Abstract

Ce-doped mesoporous γ-alumina with different contents of Ce was prepared by the sol–gel synthesis method and applied for the synthesis of propane dehydrogenation catalysts. To investigate the influence of different Ce contents on the properties of the supports, the prepared samples were characterized by several techniques, such as XRD, N2-physisorption, TEM, XPS, NH3-TPD, and hydrogen chemisorption. The results showed that, by the incorporation of Ce, the pore structure was changed, the acid content was decreased, and the properties of the metallic Pt particles were promoted significantly. Based on these effects, the coke deposits on the active center were suppressed and even migrated to the external surface of the support. As expected, when the content of Ce is suitable (0.6 wt%), the catalytic performance of propane dehydrogenation and the stability of the catalyst were highly promoted.

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Acknowledgements

The authors are grateful to the financial supports of National Natural Science Foundation of China (Grant Nos. 21376051, 21106017, 21306023 and 51077013), Natural Science Foundation of Jiangsu (Grant No. BK20131288), Fund Project for Transformation of Scientific and Technological Achievements of Jiangsu Province of China (Grant No. BA2011086), Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20100092120047), Key Program for the Scientific Research Guiding Found of Basic Scientific Research Operation Expenditure of Southeast University (Grant No. 3207043101), and Instrumental Analysis Fund of Southeast University.

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  1. School of Chemistry and Chemical Engineering, Southeast University, Jiang ning Region, Nanjing, 211189, People’s Republic of China

    Shijian Zhou, Yuming Zhou, Junjun Shi, Yiwei Zhang, Xiaoli Sheng & Zewu Zhang

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  1. Shijian Zhou
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  2. Yuming Zhou
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Correspondence to Yuming Zhou.

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Zhou, S., Zhou, Y., Shi, J. et al. Synthesis of Ce-doped mesoporous γ-alumina with enhanced catalytic performance for propane dehydrogenation. J Mater Sci 50, 3984–3993 (2015). https://doi.org/10.1007/s10853-015-8954-8

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