Improvement of carbon dioxide tolerance of PEMFC electrocatalyst by using microwave irradiation technique

Bayrakceken A., Tuerker L., Inci E.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.33, no.24, pp.7527-7537, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 24
  • Publication Date: 2008
  • Doi Number: 10.1016/j.ijhydene.2008.09.069
  • Journal Name: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.7527-7537
  • Keywords: PEM fuel cell, Microwave irradiation, Carbon black, Electrocatalyst, POLYOL SYNTHESIS, PARTICLE-SIZE, FUEL-CELLS, CATALYSTS, NANOPARTICLES, COMPONENTS, HYDROGEN, SUPPORT, CO
  • Middle East Technical University Affiliated: Yes

Abstract

The microwave irradiation technique was used to prepare platinum and platinum-ruthenium-based electrocatalysts on Vulcan for PEMFCs. The effects of microwave duration, base concentration and surfactant/precursor ratios on the properties of Pt-based catalysts were investigated. The prepared Pt-based catalysts were characterized by XRD and then PEMFC tests were performed. The particle sizes of the catalysts were ranging between 2 and 6 nm. Platinum-ruthenium-based catalysts were prepared to improve the carbon dioxide tolerance of the PEMFCs. The power losses arising from carbon dioxide in hydrogen feed were decreased by using the prepared PtRu-based catalysts when 30% carbon dioxide including hydrogen was sent to the fuel cell. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.