Nitrogen and carbon doped titanium oxide as an alternative and durable electrocatalyst support in polymer electrolyte fuel cells
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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| Title |
Nitrogen and carbon doped titanium oxide as an alternative and durable electrocatalyst support in polymer electrolyte fuel cells
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| Creator |
Dhanasekaran, P
Selvaganesh, SV Vinod, S Bhat, SD |
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| Subject |
Electrochemical Power Sources
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| Description |
Nitrogen and carbon doped titanium oxide as an alternative and ultra-stable support to platinum catalysts
is prepared and its efficiency is determined by polymer electrolyte fuel cell. Nitrogen and carbon
doped titanium oxide is prepared by varying the melamine ratio followed by calcination at 900 °C. Platinum
nanoparticles are deposited onto doped and undoped titanium oxide by colloidal method. The doping
effect, surface morphology, chemical oxidation state and metal/metal oxide interfacial contact are studied
by X-ray diffraction, Raman spectroscopy, high resolution transmission electron microscopy and X-ray
photo electron spectroscopy. The nitrogen and carbon doping changes both electronic and structural properties
of titanium oxide resulting in enhanced oxygen reduction reaction activity. The platinum deposited
on optimum level of nitrogen and carbon doped titanium oxide exhibits improved cell performance in
relation to platinum on titanium oxide electrocatalysts. The effect of metal loading on cathode electrocatalyst
is investigated by steady-state cell polarization. Accelerated durability test over 50,000 cycles for these
electrocatalysts suggested the improved interaction between platinum and nitrogen and carbon doped
titanium oxide, retaining the electrochemical surface area and oxygen reduction performance as comparable
to platinum on carbon support
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| Publisher |
Elsevier B.V.
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| Date |
2016
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3173/1/123-2016.pdf
Dhanasekaran, P and Selvaganesh, SV and Vinod, S and Bhat, SD (2016) Nitrogen and carbon doped titanium oxide as an alternative and durable electrocatalyst support in polymer electrolyte fuel cells. Journal of Power Sources, 304. pp. 360-372. ISSN 0378-7753 |
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| Relation |
http://www.elsevier.com/locate/jpowsour
http://cecri.csircentral.net/3173/ |
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