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Title: Preparation and characterization of iron-polypyrrole-carbon composite for use as methanol tolerant cathode material in direct methanol fuel cells
Authors: Madhu
Sharma, C S
Singh, R N
Keywords: Catalysts;Composites;Iron polypyrrole carbon composite;Oxygen reduction reaction;Methanol tolerant cathode material;Fuel cells;Direct methanol fuel cells
Issue Date: 7-Nov-2013
Abstract: Novel carbon supported iron-polypyrrole (30 wt% Fe-PPy-C) composite catalyst has been prepared by using a chemical polymerization method and investigated as electrocatalyst for the oxygen reduction reaction in 0.5 M H2SO4 at 25 °C. Structural and electrochemical characterizations of the catalyst have been carried out by IR, XRD, SEM, cyclic and linear sweep voltammetry, chronoamperometry and electrochemical impedance spectroscopy. Electrochemical studies have been performed in Ar- and O2- saturated 0.5 M H2SO4 with and without 1 M CH3OH at 25 °C. The study shows that the composite catalyst is oxygen reduction reaction active and stable, and does not oxidize methanol and hence can be used as an efficient methanol tolerant cathode material in direct methanol fuel cells.
Page(s): 1383-1390
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.52A(11) [November 2013]

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