Electrochemical characterization of Pt/Ti and Pt/Au/Ti electrodes for a micro fuel cell

André D. Taylor, Levi T. Thompson

Research output: Contribution to conferencePaper

Abstract

A series of metal supported nanoscale thin film platinum electrocatalysts were deposited using electron beam deposition onto silicon substrates surrounded by an LPCVD (low pressure chemical vapor deposition) oxide layer for use in proton exchange membrane (PEM) fuel cells. These electrodes were characterized electrochemically in 0.5 M H2SO4 solution. To increase the surface area of the electrode, triangular vias were formed in the metal layer using standard lithography metal lift-off processing. The electrochemical active surface (EAS) was compared under different Pt loadings for H2 adsorption and CO stripping. After optimization, the electrodes were fabricated into a micro fuel cell assembly. Power densities exceeding 8 W/cm3 were achieved. These and other results will be presented.

Original languageEnglish (US)
Number of pages1
StatePublished - 2005
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: Oct 30 2005Nov 4 2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period10/30/0511/4/05

ASJC Scopus subject areas

  • Engineering(all)
  • Energy(all)

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