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Oxidative Dehydrogenation of Ethane with CO2 over Au/CeO2 Nanorod Catalysts

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Abstract

Dehydrogenation of ethane to ethylene in the presence or absence of CO2 over Au catalysts supported on nanorod and nanoparticle ceria was investigated. The nanorod CeO2 supported Au exhibits higher activity as well as higher stability, with an ethane conversion of 17% and ethylene selectivity of 98% without any observable trend of deactivation in 6 h. The surface oxygen reducibility of the catalysts plays an important role in the dehydrogenation which can be greatly enhanced by the addition of Au. The promoting effect of CO2 on stability is caused by reducing coke by the Boudouard reaction and supplementing the reducible oxygen specie of CeO2 surface sustainably.

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Acknowledgements

This work was supported by the National Key R&D Program of China (2017YFB0602204), the National Natural Science Foundation of China (91645201) and the Science & Technology Commission of Shanghai Municipality (13DZ2275200).

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Authors and Affiliations

  1. Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, People’s Republic of China

    Tianqi Lei, Weiming Hua, Yinghong Yue & Zi Gao

  2. Shanghai Research Institute of Petrochemical Technology, Shanghai, 201208, People’s Republic of China

    Changxi Miao

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  1. Tianqi Lei
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  2. Changxi Miao
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  3. Weiming Hua
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  4. Yinghong Yue
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Correspondence to Yinghong Yue.

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Lei, T., Miao, C., Hua, W. et al. Oxidative Dehydrogenation of Ethane with CO2 over Au/CeO2 Nanorod Catalysts. Catal Lett 148, 1634–1642 (2018). https://doi.org/10.1007/s10562-018-2389-1

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  • DOI: https://doi.org/10.1007/s10562-018-2389-1

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