Oxygen reduction reaction on platinum/tantalum oxide electrocatalysts for PEM fuel cells

Olga A. Baturina, Yannick Garsany, Thomas Zega, Rhonda M. Stroud, Karen E. Swider-Lyons

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Three synthetic routes are evaluated to obtain highly dispersed platinum on tantalum oxide supported catalysts: a) deposition of platinum colloids on tantalum oxide followed by mechanical grinding with Vulcan carbon; b) deposition of tantalum oxide on Vulcan carbon, followed by the deposition of platinum colloids; and c) deposition of Pt colloids on Vulcan carbon, followed by deposition of tantalum oxide. Specific activities for oxygen reduction reaction at 0.9V are a factor of two higher for catalysts synthesized via preparation routes a and b compared to Pt/VC. In comparison, the activity of catalysts synthesized via route c is close to that of Pt/VC. Mass activities for the catalysts possessing high specific activities are lower than for Pt/VC due to their low electrochemically available platinum surface area.

Original languageEnglish (US)
Title of host publicationECS Transactions
Pages197-204
Number of pages8
Volume11
Edition1 PART 1
DOIs
StatePublished - 2007
Externally publishedYes
Event7th Symposium Devoted to Proton Exchange Membrane Fuel Cells - 212th ECS Meeting - Washington, DC, United States
Duration: Oct 7 2007Oct 12 2007

Other

Other7th Symposium Devoted to Proton Exchange Membrane Fuel Cells - 212th ECS Meeting
CountryUnited States
CityWashington, DC
Period10/7/0710/12/07

Fingerprint

Tantalum oxides
Electrocatalysts
Fuel cells
Platinum
Colloids
Oxygen
Catalysts
Carbon
Catalyst supports

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Baturina, O. A., Garsany, Y., Zega, T., Stroud, R. M., & Swider-Lyons, K. E. (2007). Oxygen reduction reaction on platinum/tantalum oxide electrocatalysts for PEM fuel cells. In ECS Transactions (1 PART 1 ed., Vol. 11, pp. 197-204) https://doi.org/10.1149/1.2780931

Oxygen reduction reaction on platinum/tantalum oxide electrocatalysts for PEM fuel cells. / Baturina, Olga A.; Garsany, Yannick; Zega, Thomas; Stroud, Rhonda M.; Swider-Lyons, Karen E.

ECS Transactions. Vol. 11 1 PART 1. ed. 2007. p. 197-204.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Baturina, OA, Garsany, Y, Zega, T, Stroud, RM & Swider-Lyons, KE 2007, Oxygen reduction reaction on platinum/tantalum oxide electrocatalysts for PEM fuel cells. in ECS Transactions. 1 PART 1 edn, vol. 11, pp. 197-204, 7th Symposium Devoted to Proton Exchange Membrane Fuel Cells - 212th ECS Meeting, Washington, DC, United States, 10/7/07. https://doi.org/10.1149/1.2780931
Baturina OA, Garsany Y, Zega T, Stroud RM, Swider-Lyons KE. Oxygen reduction reaction on platinum/tantalum oxide electrocatalysts for PEM fuel cells. In ECS Transactions. 1 PART 1 ed. Vol. 11. 2007. p. 197-204 https://doi.org/10.1149/1.2780931
Baturina, Olga A. ; Garsany, Yannick ; Zega, Thomas ; Stroud, Rhonda M. ; Swider-Lyons, Karen E. / Oxygen reduction reaction on platinum/tantalum oxide electrocatalysts for PEM fuel cells. ECS Transactions. Vol. 11 1 PART 1. ed. 2007. pp. 197-204
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