Electrochemical oxidation of surface oxides to partially recover the performance of non-PGM catalyst under fuel cell operation

Taehee Han, Nilesh Dale, Kev Adjemian, Vijayadurga Nallathambi, Scott Barton

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

  • 5 Citations

Abstract

An iron based metal-nitrogen-carbon (MNC) type oxygen reduction reaction catalyst was tested for in-situ polarization performance and durability. High open circuit voltage (OCV) of ∼0.97 V and high activities were observed. Current density around 750 mA/cm 2 was obtained at 0.6 V iR-free/RHE and volumetric current density of 31 A/cm3 was obtained at 0.8 V iR-free. A significant decrease in polarization after start-stop durability test was observed for this catalyst. An attempt was made to recover the in-situ performance after start-stop durability test by running the fuel cell at steady state current density. Partial performance recovery was achieved from the significantly degraded MNC based membrane electrode assembly (MEA). However, performance could not be recovered indefinitely due to eventual carbon loss.

LanguageEnglish (US)
Title of host publicationECS Transactions
Pages2289-2296
Number of pages8
Volume41
Edition1
DOIs
StatePublished - 2011
Event11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting - Boston, MA, United States
Duration: Oct 9 2011Oct 14 2011

Other

Other11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting
CountryUnited States
CityBoston, MA
Period10/9/1110/14/11

Profile

Electrochemical oxidation
Fuel cells
Durability
Current density
Catalysts
Carbon
Oxides
Polarization
Nitrogen
Open circuit voltage
Metals
Iron
Membranes
Recovery
Electrodes
Oxygen

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Han, T., Dale, N., Adjemian, K., Nallathambi, V., & Barton, S. (2011). Electrochemical oxidation of surface oxides to partially recover the performance of non-PGM catalyst under fuel cell operation. In ECS Transactions (1 ed., Vol. 41, pp. 2289-2296). DOI: 10.1149/1.3635762

Electrochemical oxidation of surface oxides to partially recover the performance of non-PGM catalyst under fuel cell operation. / Han, Taehee; Dale, Nilesh; Adjemian, Kev; Nallathambi, Vijayadurga; Barton, Scott.

ECS Transactions. Vol. 41 1. ed. 2011. p. 2289-2296.

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

Han, T, Dale, N, Adjemian, K, Nallathambi, V & Barton, S 2011, Electrochemical oxidation of surface oxides to partially recover the performance of non-PGM catalyst under fuel cell operation. in ECS Transactions. 1 edn, vol. 41, pp. 2289-2296, 11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting, Boston, MA, United States, 10/9/11. DOI: 10.1149/1.3635762
Han T, Dale N, Adjemian K, Nallathambi V, Barton S. Electrochemical oxidation of surface oxides to partially recover the performance of non-PGM catalyst under fuel cell operation. In ECS Transactions. 1 ed. Vol. 41. 2011. p. 2289-2296. Available from, DOI: 10.1149/1.3635762
Han, Taehee ; Dale, Nilesh ; Adjemian, Kev ; Nallathambi, Vijayadurga ; Barton, Scott. / Electrochemical oxidation of surface oxides to partially recover the performance of non-PGM catalyst under fuel cell operation. ECS Transactions. Vol. 41 1. ed. 2011. pp. 2289-2296
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