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Mea preparation for direct formate/formic acid fuel cell—comparison of palladium black and palladium supported on activated carbon performance on power generation in passive fuel cell

  • Identification data

    Identifier: imarina:9138909
    Handle: https://hdl.handle.net/20.500.11797/imarina9138909
    Authors:
    Nogalska ANavarro ABGarcia-Valls R
    Abstract:
    © 2020 by the authors. Licensee MDPI, Basel, Switzerland. Membrane electrode assemblies (MEAs) with palladium catalysts were successfully prepared by using a home-made manual pressing system with Nafion glue application that contributed to a decrease of additional energy consumption. The catalyst coated membranes were prepared with supported palladium on activated carbon (PdC) and unsupported palladium black (PdB) for comparison. The performance of passive, air breathing, functioning under ambient conditions and with low concentration (1 M) formate/formic acid fuel cell was evaluated. Based on polarization curves, the best result was obtained with carbon supported catalyst and HCOOK fuel, achieving 21.01 mW/mgPd. Still, constant current discharge with PdC showed an energy generation efficiency of 14% with HCOOH over 3% with HCOOK caused by lower potassium ion conductivity and its permeability through the proton exchange membrane. The faradic efficiency of conversion in the cell is equal to the overall energy efficiency and makes the cell self-sufficient.

  • Others:

    Author, as appears in the article.: Nogalska A; Navarro AB; Garcia-Valls R
    Department: Enginyeria Química
    URV's Author/s: Garcia Valls, Ricard / NOGALSKA, ADRIANNA
    Keywords: Palladium electro-catalyst Mea Formic acid fuel cell Formate fuel cell Catalyst coated membrane
    Abstract: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. Membrane electrode assemblies (MEAs) with palladium catalysts were successfully prepared by using a home-made manual pressing system with Nafion glue application that contributed to a decrease of additional energy consumption. The catalyst coated membranes were prepared with supported palladium on activated carbon (PdC) and unsupported palladium black (PdB) for comparison. The performance of passive, air breathing, functioning under ambient conditions and with low concentration (1 M) formate/formic acid fuel cell was evaluated. Based on polarization curves, the best result was obtained with carbon supported catalyst and HCOOK fuel, achieving 21.01 mW/mgPd. Still, constant current discharge with PdC showed an energy generation efficiency of 14% with HCOOH over 3% with HCOOK caused by lower potassium ion conductivity and its permeability through the proton exchange membrane. The faradic efficiency of conversion in the cell is equal to the overall energy efficiency and makes the cell self-sufficient.
    Thematic Areas: Química Process chemistry and technology Polymer science Materials science, multidisciplinary General materials science Filtration and separation Engineering, chemical Chemistry, physical Chemical engineering (miscellaneous)
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: ricard.garcia@urv.cat
    Author identifier: 0000-0002-3945-0434
    Record's date: 2023-04-01
    Papper version: info:eu-repo/semantics/publishedVersion
    Papper original source: Membranes. 10 (11): 1-10
    APA: Nogalska A; Navarro AB; Garcia-Valls R (2020). Mea preparation for direct formate/formic acid fuel cell—comparison of palladium black and palladium supported on activated carbon performance on power generation in passive fuel cell. Membranes, 10(11), 1-10. DOI: 10.3390/membranes10110355
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2020
    Publication Type: Journal Publications

  • Keywords:

    Chemical Engineering (Miscellaneous),Chemistry, Physical,Engineering, Chemical,Filtration and Separation,Materials Science, Multidisciplinary,Polymer Science,Process Chemistry and Technology
    Palladium electro-catalyst
    Mea
    Formic acid fuel cell
    Formate fuel cell
    Catalyst coated membrane
    Química
    Process chemistry and technology
    Polymer science
    Materials science, multidisciplinary
    General materials science
    Filtration and separation
    Engineering, chemical
    Chemistry, physical
    Chemical engineering (miscellaneous)

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