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.

Keywords

Combustion Physical Chemistry Zirconia Platinum Propane 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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