Electrocatalysis

, Volume 3, Issue 1, pp 13–21

Carbon-Supported Silver as Cathode Electrocatalyst for Alkaline Polymer Electrolyte Membrane Fuel Cells

  • Subbiah Maheswari
  • Parthasarathi Sridhar
  • Sethuraman Pitchumani
Article

DOI: 10.1007/s12678-011-0071-0

Cite this article as:
Maheswari, S., Sridhar, P. & Pitchumani, S. Electrocatal (2012) 3: 13. doi:10.1007/s12678-011-0071-0

Abstract

Carbon-supported silver in varying percentage viz. 40%, 60%, and 80% (Ag/C) is prepared by sodium citrate protecting method. The structure, dispersion, electrochemical characterization, and surface area and oxygen reduction reaction pathway of Ag/C are determined by XRD, TEM, CV, and LSV, respectively. The catalyst is evaluated for its electrocatalytic activity towards oxygen reduction reaction (ORR) in alkaline polymer electrolyte membrane fuel cells (APEMFCs); 60% Ag/C gives higher performance than 40%, and 80% Ag/C. Metal loading on cathode is optimized through the cell polarization studies using 60% Ag/C. A peak power density of 10 mW/cm2 is obtained for APEMFC single cell comprising 60% Ag/C and 38% Pt/C as cathode and anode catalysts, respectively.

Keywords

Alkaline polymer electrolyte membrane fuel cell Electrochemical surface area Tafel slope Oxygen reduction reaction Carbon-supported silver 

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Subbiah Maheswari
    • 1
  • Parthasarathi Sridhar
    • 1
  • Sethuraman Pitchumani
    • 1
  1. 1.CSIR—Central Electrochemical Research Institute, Madras UnitCSIR ComplexChennaiIndia

Personalised recommendations