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One-step preparation of Pt–Ce and Pt–Sn–Ce/Al2O3 catalysts by flame spray pyrolysis in propane dehydrogenation

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Abstract

Nanocrystalline Pt–Ce/Al2O3 and Pt–Sn–Ce/Al2O3 catalysts with various Ce loading contents have been prepared by one-step flame spray pyrolysis (FSP). The resulting nanopowders consisted of spherical single-crystalline γ-alumina particles with as-prepared primary particle size of 8–10 nm. The N2 physisorption results revealed that all the flame-made catalysts contained only the macropore structure. The catalytic properties of the FSP-made catalysts were investigated in the dehydrogenation of propane. The results show that the Ce addition could greatly improve the catalytic performance and catalytic stability of the Pt–Ce/Al2O3 and Pt–Sn–Ce/γ-Al2O3 and optimal Ce loading contents was 1 wt%. This could be due to better Pt dispersion and change in metal/support interaction after Ce loading.

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Acknowledgments

Financial supports from the The Ratchadaphiseksomphot Endowment Fund of Chulalongkorn University (Advanced Materials Cluster) are gratefully acknowledged.

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Authors and Affiliations

  1. Department of Chemical Engineering, Faculty of Engineering, Center of Excellence on Catalysis and Catalytic Reaction Engineering, Chulalongkorn University, Bangkok, 10330, Thailand

    Sukanya Pisduangdaw, Piyasan Praserthdam & Joongjai Panpranot

  2. Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, 73000, Thailand

    Okorn Mekasuwandumrong

Authors
  1. Sukanya Pisduangdaw
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  2. Piyasan Praserthdam
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  3. Joongjai Panpranot
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  4. Okorn Mekasuwandumrong
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Corresponding author

Correspondence to Joongjai Panpranot.

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Pisduangdaw, S., Praserthdam, P., Panpranot, J. et al. One-step preparation of Pt–Ce and Pt–Sn–Ce/Al2O3 catalysts by flame spray pyrolysis in propane dehydrogenation. Reac Kinet Mech Cat 113, 149–158 (2014). https://doi.org/10.1007/s11144-014-0718-y

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  • DOI: https://doi.org/10.1007/s11144-014-0718-y

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