Ionics

, Volume 11, Issue 1–2, pp 126–131 | Cite as

Influence of the thickness of sputter-deposited platinum films on the electrochemical promotion of propane combustion

  • A. Billard
  • P. Vernoux
Article

Abstract

8 to 120 nm-thick Pt coatings were sputter-deposited on Yttria-Stabilised Zirconia (YSZ) membranes, 17 mm in diameter, by magnetron sputtering of a Pt target at low pressure (0.3 Pa). The catalytic activity of propane combustion under open-circuit conditions is first measured near to the stoichiometry (0.2%C3H8/1%O2) and shows that the coatings present a rather high catalytic activity. Close-circuit measurements were finally performed at 337 °C and 400 °C. They show that rather high faradaic efficiencies in the range 106 can be reached as soon as the Pt film is thick enough to allow a bias of its whole area.

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Copyright information

© IfI - Institute for Ionics 2005

Authors and Affiliations

  • A. Billard
    • 1
  • P. Vernoux
    • 2
  1. 1.Laboratorie de Science et Génie des Surfaces (UMR 7570)Ecole des Mines – Parc de SauruptNancy cedex
  2. 2.Laboratoire d'Application de la Chimie à l'Environnement (UMR 5634) CNRSUniversité Claude Bernard-Lyon 1Lyon cedex

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