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Detection of Ambient Oxidation of Ultrasmall Supported Platinum Nanoparticles with Benchtop Powder X-Ray Diffraction

Catalysis Letters volume 147, pages 1754–1764 (2017)Cite this article

Abstract

The ability of a benchtop powder X-ray diffractometer with a solid state detector to observe the ambient oxidation of ultrasmall (sub 2.5 nm) Pt particles, previously seen only with synchrotron XRD, is demonstrated. The oxidation is corroborated with STEM imaging and fast Fourier transform analysis.

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Acknowledgements

This work was completed with partial support from NSF Grant IIP 1464630.

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Authors and Affiliations

  1. Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA

    Ritubarna Banerjee, Qiuli Liu, John Meynard Macasero Tengco & John R. Regalbuto

Authors
  1. Ritubarna Banerjee
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  2. Qiuli Liu
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  3. John Meynard Macasero Tengco
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  4. John R. Regalbuto
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Correspondence to John R. Regalbuto.

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Banerjee, R., Liu, Q., Tengco, J.M.M. et al. Detection of Ambient Oxidation of Ultrasmall Supported Platinum Nanoparticles with Benchtop Powder X-Ray Diffraction. Catal Lett 147, 1754–1764 (2017). https://doi.org/10.1007/s10562-017-2060-2

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  • DOI: https://doi.org/10.1007/s10562-017-2060-2

Keywords

  • XRD
  • Spontaneous oxidation
  • Point of zero charge
  • Strong electrostatic adsorption
  • High resolution transmission electron microscopy
  • Fast Fourier transform