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Study of the local structure of supported nanostructural platinum catalysts

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Abstract

The possibility of controlling the state of platinum deposited on the support surface via minor changes in the catalyst preparation procedure is demonstrated using a series of highly dispersed Pt/γ-Al2O3 catalysts with different particle size of the active component. Dispersity, local structure and electronic state of supported platinum were examined by a combination of high resolution transmission electron microscopy and X-ray absorption spectroscopy (EXAFS/XANES). It was shown that various platinum species can be obtained on the surface of the support: bulk or surface Pt(II) or Pt(IV) oxides, mixed metal-oxide structures, bulk particles of metallic platinum, and two-dimensional surface Pt0 particles strongly interacting with the support.

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Authors and Affiliations

  1. G. K. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia

    I. É. Beck, V. V. Kriventsov, D. P. Ivanov, E. P. Yakimchuk, B. N. Novgorodov, V. I. Zaikovskii & V. I. Bukhtiyarov

  2. Novosibirsk State University, Novosibirsk, Russia

    I. É. Beck, V. I. Zaikovskii & V. I. Bukhtiyarov

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  1. I. É. Beck
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  2. V. V. Kriventsov
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  3. D. P. Ivanov
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  4. E. P. Yakimchuk
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  5. B. N. Novgorodov
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  6. V. I. Zaikovskii
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  7. V. I. Bukhtiyarov
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Correspondence to I. É. Beck.

Additional information

Original Russian Text Copyright © 2010 by I. É. Beck, V. V. Kriventsov, D. P. Ivanov, E. P. Yakimchuk, B. N. Novgorodov, V. I. Zaikovskii, and V. I. Bukhtiyarov

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Translated from Zhurnal Strukturnoi Khimii, Vol. 51, Supplement, pp. S17–S25, 2010.

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Beck, I.É., Kriventsov, V.V., Ivanov, D.P. et al. Study of the local structure of supported nanostructural platinum catalysts. J Struct Chem 51 (Suppl 1), 11–19 (2010). https://doi.org/10.1007/s10947-010-0185-x

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  • DOI: https://doi.org/10.1007/s10947-010-0185-x

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