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Support Dependence of MeOH Decomposition Over Size-Selected Pt Nanoparticles

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Abstract

We present here the decomposition of methanol over Pt nanoparticles supported on a series of oxide powders. The samples tested may be roughly grouped in two categories consisting of large (∼15–18 nm) and small (∼8–9 nm) Pt particles deposited on reducible (CeO2, TiO2) and non-reducible (SiO2, ZrO2, Al2O3) supports. The smallest particles (∼8 nm), deposited on ZrO2, were found to be cationic and the most active for the decomposition of methanol. Furthermore, the stability of metallic Pt and its oxides was observed to be dependent on the choice of support. In all Pt containing samples the reaction proceeds via he direct decomposition of methanol, as no significant amounts of by-products were detected in the experimental range of 100–300 °C.

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Acknowledgments

We gratefully acknowledge the support of this work by the Donors of the American Chemical Society Petroleum Research Fund under Grant PRF-42701-G5 and supplement for minority undergraduate summer research, and the National Science Foundation (NSF-CAREER award, No. 0448491).

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Authors and Affiliations

  1. Department of Physics, University of Central Florida, Orlando, FL, 32816, USA

    Jason R. Croy, Simon Mostafa, Helge Heinrich & Beatriz Roldan Cuenya

  2. Center of Advanced Materials Processing and Characterization, University of Central Florida, Orlando, FL, 32816, USA

    Jing Liu, Yongho Sohn & Helge Heinrich

Authors
  1. Jason R. Croy
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  2. Simon Mostafa
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  3. Jing Liu
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  4. Yongho Sohn
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  5. Helge Heinrich
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  6. Beatriz Roldan Cuenya
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Correspondence to Beatriz Roldan Cuenya.

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Croy, J.R., Mostafa, S., Liu, J. et al. Support Dependence of MeOH Decomposition Over Size-Selected Pt Nanoparticles. Catal Lett 119, 209–216 (2007). https://doi.org/10.1007/s10562-007-9236-0

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  • DOI: https://doi.org/10.1007/s10562-007-9236-0

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