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Advances in Physical Chemistry
Volume 2011 (2011), Article ID 414108, 12 pages
http://dx.doi.org/10.1155/2011/414108
Research Article

Potentiostatic Testing of Oxygen Reduction on Polymer Carbon Electrodes

ICEMS and Instituto Superior Técnico, TU Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal

Received 16 May 2011; Revised 2 August 2011; Accepted 4 August 2011

Academic Editor: Milan M. Jaksic

Copyright © 2011 C. A. C. Sequeira and D. M. F. Santos. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The preparation of polymer carbon electrocatalysts by the controlled pyrolysis of polyfurfuryl alcohol polymer is described. Potentiostatic testing in oxygen-saturated KOH electrolytes is performed, and electrokinetic properties of the electrodes prepared from the electrocatalysts are presented and discussed. It is revealed that a pure polymer carbon electrode pyrolysed in powder form possesses a very high active area, displaying higher catalytic activity than a polymer pyrolysed in bulk. Suitable reduction mechanisms are proposed.