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Ionomer-free and recyclable porous-transport electrode for high-performing proton-exchange-membrane water electrolysis

Author

Listed:
  • Jason K. Lee

    (Lawrence Berkeley National Laboratory)

  • Grace Anderson

    (Lawrence Berkeley National Laboratory
    University of California Berkeley)

  • Andrew W. Tricker

    (Lawrence Berkeley National Laboratory)

  • Finn Babbe

    (Lawrence Berkeley National Laboratory)

  • Arya Madan

    (University of California Berkeley)

  • David A. Cullen

    (Oak Ridge National Laboratory)

  • José’ D. Arregui-Mena

    (Oak Ridge National Laboratory)

  • Nemanja Danilovic

    (Lawrence Berkeley National Laboratory)

  • Rangachary Mukundan

    (Lawrence Berkeley National Laboratory)

  • Adam Z. Weber

    (Lawrence Berkeley National Laboratory)

  • Xiong Peng

    (Lawrence Berkeley National Laboratory)

Abstract

Clean hydrogen production requires large-scale deployment of water-electrolysis technologies, particularly proton-exchange-membrane water electrolyzers (PEMWEs). However, as iridium-based electrocatalysts remain the only practical option for PEMWEs, their low abundance will become a bottleneck for a sustainable hydrogen economy. Herein, we propose high-performing and durable ionomer-free porous transport electrodes (PTEs) with facile recycling features enabling Ir thrifting and reclamation. The ionomer-free porous transport electrodes offer a practical pathway to investigate the role of ionomer in the catalyst layer and, from microelectrode measurements, point to an ionomer poisoning effect for the oxygen evolution reaction. The ionomer-free porous transport electrodes demonstrate a voltage reduction of > 600 mV compared to conventional ionomer-coated porous transport electrodes at 1.8 A cm−2 and

Suggested Citation

  • Jason K. Lee & Grace Anderson & Andrew W. Tricker & Finn Babbe & Arya Madan & David A. Cullen & José’ D. Arregui-Mena & Nemanja Danilovic & Rangachary Mukundan & Adam Z. Weber & Xiong Peng, 2023. "Ionomer-free and recyclable porous-transport electrode for high-performing proton-exchange-membrane water electrolysis," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40375-x
    DOI: 10.1038/s41467-023-40375-x
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    References listed on IDEAS

    as
    1. Zhang, Hanfei & Wang, Ligang & Van herle, Jan & Maréchal, François & Desideri, Umberto, 2020. "Techno-economic comparison of green ammonia production processes," Applied Energy, Elsevier, vol. 259(C).
    2. David A. Cullen & K. C. Neyerlin & Rajesh K. Ahluwalia & Rangachary Mukundan & Karren L. More & Rodney L. Borup & Adam Z. Weber & Deborah J. Myers & Ahmet Kusoglu, 2021. "New roads and challenges for fuel cells in heavy-duty transportation," Nature Energy, Nature, vol. 6(5), pages 462-474, May.
    3. Buttler, Alexander & Spliethoff, Hartmut, 2018. "Current status of water electrolysis for energy storage, grid balancing and sector coupling via power-to-gas and power-to-liquids: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 2440-2454.
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    Cited by:

    1. Liu, Chang & Wrubel, Jacob A. & Padgett, Elliot & Bender, Guido, 2024. "Impacts of PTL coating gaps on cell performance for PEM water electrolyzer," Applied Energy, Elsevier, vol. 356(C).

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