Journal of Applied Electrochemistry

, Volume 38, Issue 6, pp 869–874

Effect of carbon surface oxidation on platinum supported carbon particles on the performance of gas diffusion electrodes for the oxygen reduction reaction

  • Ahmad Nozad Golikand
  • Elaheh Lohrasbi
  • Mohammad Ghannadi Maragheh
  • Mehdi Asgari
Original Paper

DOI: 10.1007/s10800-008-9531-5

Cite this article as:
Golikand, A.N., Lohrasbi, E., Maragheh, M. et al. J Appl Electrochem (2008) 38: 869. doi:10.1007/s10800-008-9531-5

Abstract

The effect of carbon surface oxidation on platinum supported carbon particles (Pt/C) with nitric acid was investigated by cyclic voltammetry, electrochemical impedance spectroscopy, polarization experiments and chronoamperometry. Cyclic voltammograms, polarization curves and electrochemical impedance spectra showed that the treated catalyst had much larger active surface area and higher ionic conductivity than the untreated catalyst, and provided enhanced performance for oxygen reduction. The formation of acidic groups was examined by IR spectra. The Pt/C surface oxidation had a large effect on the performance of a gas diffusion electrode for oxygen reduction reaction.

Keywords

Surface oxidation Carbon supported catalyst Gas diffusion electrode Catalyst layer Oxygen reduction reaction 

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Ahmad Nozad Golikand
    • 1
    • 2
  • Elaheh Lohrasbi
    • 2
  • Mohammad Ghannadi Maragheh
    • 1
  • Mehdi Asgari
    • 1
  1. 1.Jaber Ibne Hayan Research Labs., Chemistry DepartmentNSTRITehranIran
  2. 2.Corrosion Lab., Material SchoolNSTRITehranIran