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Effect of Ce addition on the surface properties and n-dodecane dehydrogenation performance of Pt-Sn/Ce-Al2O3 catalyst

  • Chemical Kinetics and Catalysis
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Abstract

Ce-modified alumina carriers with different Ce content were prepared by vacuum isovolume impregnation method aiming to improve the n-dodecane catalytic dehydrogenation performance of PtSn/Al2O3 catalyst. The support and catalyst were characterized by XRD, N2 adsorption-desorption, NH3-TPD, H2-TPR, CO-pulse adsorption and TG-DTG. Results showed that Ce addition decreased the surface acid amount significantly and inhibited the reduction of SnO x species. Besides, Ce containing catalyst showed higher n-dodecane dehydrogenation activity and stability and lower coke deposition amount and coke burning temperature. In our study, the optimal Ce addition amount for n-dodecane dehydrogenation was 2%.

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Authors and Affiliations

  1. Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, PR China

    Xianru Li, Songbo He, Huangzhao Wei, Sha Luo, Bin Gu & Chenglin Sun

  2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, PR China

    Xianru Li & Bin Gu

  3. School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, 116012, PR China

    Sha Luo

Authors
  1. Xianru Li
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  2. Songbo He
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  3. Huangzhao Wei
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  4. Sha Luo
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  5. Bin Gu
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  6. Chenglin Sun
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Correspondence to Chenglin Sun.

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Li, X., He, S., Wei, H. et al. Effect of Ce addition on the surface properties and n-dodecane dehydrogenation performance of Pt-Sn/Ce-Al2O3 catalyst. Russ. J. Phys. Chem. 89, 1368–1373 (2015). https://doi.org/10.1134/S0036024415080312

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  • DOI: https://doi.org/10.1134/S0036024415080312

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