Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 38, Issue 15, Pages 6460-6468Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2013.02.094
Keywords
Carbon nanostructure; Cyclic voltammetry; Oxygen reduction; Platinum; Polarization study; Power density
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Funding
- IIT Madras
- DST (INDO-UK)
- CSIR
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A novel carbon nanostructure grown by catalytic chemical vapour deposition technique has been applied as an electrocatalyst support for oxygen reduction reaction in proton exchange membrane fuel cell. The growth of carbon nanostructure (CNS) is carried over a low cost bi-metal oxide catalyst (Fe-Sn-O) synthesized by sol-gel technique. Platinum nanoparticle decoration on Fe-Sn-O incorporated CNS (CNS-FSO) is performed by ethylene glycol reduction method. The structural as well as morphological analysis confirms the formation of CNS-FSO and platinum decoration on CNS-FSO. The electrochemically active surface area (ECSA) of platinum decorated CNS-FSO (Pt/CNS-FSO) is 68 m(2) g(-1), as revealed from cyclic voltammetry. Polarization studies are carried out at different temperatures (40 degrees C, 50 degrees C and 60 degrees C) to exploit the oxygen reduction reaction activity of Pt/CNS-FSO. A maximum power density of 449 mW cm(-2) (without back pressure) at 60 degrees C shows the potential of this novel CNS-FSO as an electrocatalyst support in proton exchange membrane fuel cell. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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