Kinetics and Catalysis

, Volume 56, Issue 4, pp 509–514 | Cite as

Development of carbon supports with increased corrosion resistance for Pt/C catalysts for oxygen electroreduction

  • V. A. Golovin
  • E. N. Gribov
  • P. A. Simonov
  • A. G. Okunev
  • I. N. Voropaev
  • A. N. Kuznetsov
  • A. V. Romanenko
“Catalysis: From Science to Industry,” III International School-Cconference for Young Scientists (Tomsk, October 26–30, 2014)

Abstract

The influence of different surface modifications of carbon supports on the corrosion resistance of 50 wt % Pt/C catalysts on their basis was studied. The corrosion resistance was measured from changes in the electroactive surface area of platinum in the course of potential cycling from 1.0 to 1.5 V versus the reversible hydrogen electrode (potential sweep rate, 0.5 V/s) during 60000 cycles. A 40% Pt/Vulcan XC-72 commercial catalyst was used as the reference sample. The supports were modified by the carbonization of the high surface area carbon black Ketjenblack DJ-600 and by the additional activation of the carbon-carbon composite Sibunit-1562. It was found that the preliminary carbonization of the Ketjenblack DJ-600 support with a propane-butane mixture at 770°C and the activation of Sibunit-1562 with subsequent thermal treatment at 500°C increased and decreased, respectively, the corrosion resistance of the 50 wt % Pt/C catalysts on their basis.

Keywords

carbon supports electrocorrosion platinum corrosion resistance 

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • V. A. Golovin
    • 1
    • 2
    • 3
  • E. N. Gribov
    • 1
    • 2
  • P. A. Simonov
    • 1
    • 2
  • A. G. Okunev
    • 1
    • 2
  • I. N. Voropaev
    • 1
    • 2
  • A. N. Kuznetsov
    • 1
  • A. V. Romanenko
    • 1
  1. 1.Boreskov Institute of Catalysis, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  2. 2.Novosibirsk State UniversityNovosibirskRussia
  3. 3.Research and Education Center for Energy-Efficient CatalysisNovosibirsk State UniversityNovosibirskRussia

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