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: ResearchConference 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
    Metals
    Open circuit voltage
    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: ResearchConference 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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