Synthesis and characterization of polypyrrole/carbon composite as a catalyst support for fuel cell applications


Memioglu F., BAYRAKÇEKEN YURTCAN A. , ÖZNÜLÜER ÖZER T. , AK M.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.37, no.21, pp.16673-16679, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 21
  • Publication Date: 2012
  • Doi Number: 10.1016/j.ijhydene.2012.02.086
  • Title of Journal : INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Page Numbers: pp.16673-16679
  • Keywords: PEM fuel cell, Polypyrrole/carbon composite, Carbon corrosion, Durability, Conducting polymer, Electrical conductivity, WALLED CARBON NANOTUBES, PPY, ELECTROCATALYSTS, OXIDATION, FACILE, BLACKS

Abstract

Polypyrrole (PPy)/Carbon composites were synthesized by in situ chemical oxidative polymerization of pyrrole monomer on carbon black. Effects of polymerization temperature (either 0 degrees C or 25 degrees C) and different dopants including p-toluenesulfonic acid (p-TSA) and sodium dodecyl sulfate (SDS) on the properties of the composites were investigated. The synthesized composites were characterized by XRD, FTIR and TGA. Electrical conductivities of the composites were determined by using four-point probe technique. Electrochemical oxidation characteristics of the synthesized PPy/Carbon composites were investigated by cyclic voltammetry via potential holding experiments. The PPy/Carbon composites synthesized at 0 degrees C and with p-TSA as dopant showed the best oxidation resistance than carbon and other composites. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.