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Microwave-assisted synthesis of Pd nanoparticles supported on Fe3O4, Co3O4, and Ni(OH)2 nanoplates and catalysis application for CO oxidation

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Abstract

In this paper, we report a simple, versatile, and rapid method for the synthesis of Pd nanoparticle catalysts supported on Fe3O4, Co3O4, and Ni(OH)2 nanoplates via microwave irradiation. The important advantage of microwave dielectric heating over convective heating is that the reactants can be added at room temperature (or slightly higher temperatures) without the need for high-temperature injection. Furthermore, the method can be used to synthesize metal nanoparticle catalysts supported on metal oxide nanoparticles in one step. We also demonstrate that the catalyst-support interaction plays an important role in the low temperature oxidation of CO. The current results reveal that the Pd/Co3O4 catalyst has particularly high activity for CO oxidation as a result of the strong interaction between the Pd nanoparticles and the Co3O4 nanoplates. Optimizations of the size, composition, and shape of these catalysts could provide a new family of efficient nanocatalysts for the low temperature oxidation of CO.

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Acknowledgments

We thank the National Science Foundation (CHE-0911146 and OISE-1002970) for the support of this work.

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Authors and Affiliations

  1. Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284, USA

    Sherif Moussa, B. Frank Gupton & M. Samy El-Shall

  2. Department of Chemical Engineering, Virginia Commonwealth University, Richmond, VA, 23284, USA

    Hany A. Elazab, B. Frank Gupton & M. Samy El-Shall

  3. Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia

    M. Samy El-Shall

Authors
  1. Hany A. Elazab
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  2. Sherif Moussa
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  3. B. Frank Gupton
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  4. M. Samy El-Shall
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Corresponding author

Correspondence to M. Samy El-Shall.

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11051_2014_2477_MOESM1_ESM.doc

Figure S1 (a-e): TEM images of Fe3O4 and Ni(OH)2 nanoplates, and 50 wt% Pd nanoparticles supported on Fe3O4 and Ni(OH)2 nanoplates. (DOC 66698 kb)

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Elazab, H.A., Moussa, S., Gupton, B.F. et al. Microwave-assisted synthesis of Pd nanoparticles supported on Fe3O4, Co3O4, and Ni(OH)2 nanoplates and catalysis application for CO oxidation. J Nanopart Res 16, 2477 (2014). https://doi.org/10.1007/s11051-014-2477-0

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  • DOI: https://doi.org/10.1007/s11051-014-2477-0

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