Boosting Pt oxygen reduction reaction activity and durability by carbon semi-coated titania nanorods for proton exchange membrane fuel cells
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Boosting Pt oxygen reduction reaction activity and durability by carbon semi-coated titania nanorods for proton exchange membrane fuel cells
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| Creator |
Dhanasekaran, P.
Selvaganesh, S.V. Shukla, A. Nagaraju, N. Bhat, S.D. |
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| Subject |
Fuel Cells
Nanotechnology Electrochemical Power Sources |
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| Description |
We report a simple, scalable approach to improve interfacial characteristics of carbon semi-coated titania
nanorods-supported-Pt with superior peak power density as compared to Pt/C with thin metal loading of
150 mg cm�2. Thin layer of carbon coated titania nanorod is synthesized by hydrothermal method. Carbon
coated titania nanorods boosts the Pt oxygen reduction reaction activity than carbon. The crystal
structure, dispersion of platinum nanoparticles, surface morphology and oxidation state are studied by
X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy, respectively.
Studies using conventional three electrode setup shows that Pt/CCT-30 retains 48% of initial electrochemical
surface area even after 40,000 potential cycles between 0.6 and 1.2 V. The solid fuel cell mode
accelerated stress durability studies show that thin layer of carbon coated titania nanorods-Pt (Pt/CCT 30)
significantly enhances stability and preserves 75% of initial fuel cell performance even after 10,000
potential cycles between 1 and 1.5 V. In comparison, only 20% of performance is retained for Pt supported
on carbon after 3000 cycles
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| Publisher |
Elsevier
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| Date |
2018-01-17
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3200/1/295-2018.pdf
Dhanasekaran, P. and Selvaganesh, S.V. and Shukla, A. and Nagaraju, N. and Bhat, S.D. (2018) Boosting Pt oxygen reduction reaction activity and durability by carbon semi-coated titania nanorods for proton exchange membrane fuel cells. Electrochimica Acta, 263. pp. 596-609. ISSN 0013-4686 |
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| Relation |
http://www.elsevier.com/locate/electacta
http://cecri.csircentral.net/3200/ |
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