Effect of Pd loading in Pd-Pt bimetallic catalysts doped into hollow core mesoporous shell carbon on performance of proton exchange membrane fuel cells

Ficicilar B., BAYRAKÇEKEN YURTCAN A., Eroglu I.

JOURNAL OF POWER SOURCES, cilt.193, sa.1, ss.17-23, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 193 Sayı: 1
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.jpowsour.2009.01.094
  • Dergi Adı: JOURNAL OF POWER SOURCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.17-23
  • Anahtar Kelimeler: PEMFC, Palladium, Platinum, Nanoparticles, Hollow core mesoporous shell carbon, Microwave irradiation, OXYGEN REDUCTION, SILICA SPHERES, METHANOL, OXIDATION, PLATINUM, ALLOY, ELECTROCATALYSTS, NANOPARTICLES, FABRICATION, CAPSULES
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

A significantly active Pd-Pt/carbon electrocatalyst for polymer electrolyte membrane fuel cells was synthesized by microwave irradiation using a hollow core mesoporous shell (HCMS) carbon as catalyst support that was prepared by template replication of core/shell spherical silica particles and two different carbon precursors. Pt/Pd percent weight ratios on carbon support were varied as 20/0, 15/5, 10/10, 5/15 to 0/20. As the average pore diameter of the carbon support was increased from 3.02 nm to 3.90 nm by changing the type of the carbon precursor, fuel cell performances of the HCMS carbon based Pd-Pt bimetallic catalysts were improved significantly. (C) 2009 Elsevier B.V. All rights reserved.