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Oxygen Reduction at PtNi Alloys in Direct Methanol Fuel Cells—Electrode Development and Characterization

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  • Ali Karaca

    (Institute of Energy and Climate Research IEK-14: Electrochemical Process Engineering, Forschungszentrum Jülich, 52428 Jülich, Germany)

  • Andreas Glüsen

    (Institute of Energy and Climate Research IEK-14: Electrochemical Process Engineering, Forschungszentrum Jülich, 52428 Jülich, Germany)

  • Klaus Wippermann

    (Institute of Energy and Climate Research IEK-14: Electrochemical Process Engineering, Forschungszentrum Jülich, 52428 Jülich, Germany)

  • Scott Mauger

    (National Renewable Energy Laboratory, Golden, CO 80401, USA)

  • Ami C. Yang-Neyerlin

    (National Renewable Energy Laboratory, Golden, CO 80401, USA)

  • Steffen Woderich

    (Center for Applied Nanotechnology CAN, Fraunhofer Institute for Applied Polymer Research IAP, 20146 Hamburg, Germany)

  • Christoph Gimmler

    (Center for Applied Nanotechnology CAN, Fraunhofer Institute for Applied Polymer Research IAP, 20146 Hamburg, Germany)

  • Martin Müller

    (Institute of Energy and Climate Research IEK-14: Electrochemical Process Engineering, Forschungszentrum Jülich, 52428 Jülich, Germany)

  • Guido Bender

    (National Renewable Energy Laboratory, Golden, CO 80401, USA)

  • Horst Weller

    (Center for Applied Nanotechnology CAN, Fraunhofer Institute for Applied Polymer Research IAP, 20146 Hamburg, Germany
    Department of Chemistry, Institute of Physical Chemistry, University of Hamburg, 20146 Hamburg, Germany)

  • Marcelo Carmo

    (Institute of Energy and Climate Research IEK-14: Electrochemical Process Engineering, Forschungszentrum Jülich, 52428 Jülich, Germany
    Mechanical and Materials Engineering, Queen’s University, Kingston, ON K7L 3N6, Canada
    Current address: Nel Hydrogen, Wallingford, CT 06492, USA.)

  • Detlef Stolten

    (Chair for Fuel Cells, RWTH Aachen University, 52072 Aachen, Germany)

Abstract

Catalyst layers made from novel catalysts must be fabricated in a way that the catalyst can function to its full potential. To characterize a PtNi alloy catalyst for use in the cathode of Direct Methanol Fuel Cells (DMFCs), the effects of the manufacturing technique, ink composition, layer composition, and catalyst loading were here studied in order to reach the maximum performance potential of the catalyst. For a more detailed understanding, beyond the DMFCs performance measurements, we look at the electrochemically active surface area of the catalyst and charge-transfer resistance, as well as the layer quality and ink properties, and relate them to the aspects stated above. As a result, we make catalyst layers with optimized parameters by ultrasonic spray coating that shows the high performance of the catalyst even when containing less Pt than commercial products. Using this approach, we can adjust the catalyst layers to the requirements of DMFCs, hydrogen fuel cells, or polymer electrolyte membrane electrolysis cells.

Suggested Citation

  • Ali Karaca & Andreas Glüsen & Klaus Wippermann & Scott Mauger & Ami C. Yang-Neyerlin & Steffen Woderich & Christoph Gimmler & Martin Müller & Guido Bender & Horst Weller & Marcelo Carmo & Detlef Stolt, 2023. "Oxygen Reduction at PtNi Alloys in Direct Methanol Fuel Cells—Electrode Development and Characterization," Energies, MDPI, vol. 16(3), pages 1-18, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:3:p:1115-:d:1041261
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    References listed on IDEAS

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    1. Maria H. de Sá & Catarina S. Moreira & Alexandra M. F. R. Pinto & Vânia B. Oliveira, 2022. "Recent Advances in the Development of Nanocatalysts for Direct Methanol Fuel Cells," Energies, MDPI, vol. 15(17), pages 1-47, August.
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