Mass Transport Impedance in a PEMFC with Superhydrophobic Catalyst Layers

Mass Transport Impedance in a PEMFC with Superhydrophobic Catalyst Layers

Hydrogen transport in the anode of a proton-exchange membrane fuel cell (PEMFC) with superhydrophobic catalyst layer has been studied with Current-modulated Hydrogen-flowrate Spectroscopy (CH2S). The catalyst layers of Pt/C catalyst and ionomer (Nafion) are prepared by the electrospray deposition te...

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Veröffentlicht in:ECS transactions 2023-09, Vol.112 (4), p.115-120
Hauptverfasser: Duque, Luis, Molinero, Antonio, Oller, Juan Carlos, Barcala, José Miguel, Díaz-Álvarez, Ester, Folgado, M. Antonia, Chaparro, Antonio M
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container_issue 4
container_start_page 115
container_title ECS transactions
container_volume 112
creator Duque, Luis
Molinero, Antonio
Oller, Juan Carlos
Barcala, José Miguel
Díaz-Álvarez, Ester
Folgado, M. Antonia
Chaparro, Antonio M
description Hydrogen transport in the anode of a proton-exchange membrane fuel cell (PEMFC) with superhydrophobic catalyst layer has been studied with Current-modulated Hydrogen-flowrate Spectroscopy (CH2S). The catalyst layers of Pt/C catalyst and ionomer (Nafion) are prepared by the electrospray deposition technique, with macroporous morphology and superhydrophobic pores walls. Transport properties are studied under different operating conditions in a PEMFC, including humidification, temperature, and cell current. Features of the CH2S spectra are compared for electrosprayed and commercial –hydrophilic- catalyst layers, reflecting different transport properties. The electrosprayed layers show enhanced hydrogen transport properties.
doi_str_mv 10.1149/11204.0115ecst
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title Mass Transport Impedance in a PEMFC with Superhydrophobic Catalyst Layers
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