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Kinetics of hydrogen absorption by porous nickel in an aqueous sodium hydroxide solution

  • Chemical Kinetics and Catalysis
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Abstract

Kinetic studies of hydrogen absorption by porous nickel catalyst establish that there are three regions on kinetic curves of the process differing in their regularities of adsorption. The dependence of the observed rate of hydrogen absorption on the adsorbate amount is formally described by a first order kinetic equation, and the absorption rate constants corresponding to distinct parts of the kinetic curve differ by 1–2 orders of magnitude. The obtained data are explained using the concept that hydrogen adsorption on nickel active centers proceeds with three forms of adsorption.

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Authors and Affiliations

  1. Ivanovo State University of Chemical Technology, Ivanovo, 153460, Russia

    M. V. Ulitin, Yu. E. Romanenko & O. V. Lefedova

Authors
  1. M. V. Ulitin
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  2. Yu. E. Romanenko
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  3. O. V. Lefedova
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Correspondence to M. V. Ulitin.

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Original Russian Text © M.V. Ulitin, Yu.E. Romanenko, O.V. Lefedova, 2012, published in Zhurnal Fizicheskoi Khimii, 2012, Vol. 86, No. 6, pp. 1060–1065.

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Ulitin, M.V., Romanenko, Y.E. & Lefedova, O.V. Kinetics of hydrogen absorption by porous nickel in an aqueous sodium hydroxide solution. Russ. J. Phys. Chem. 86, 953–958 (2012). https://doi.org/10.1134/S0036024412060271

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  • DOI: https://doi.org/10.1134/S0036024412060271

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