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Scalable Design of Ru-Embedded Carbon Fabric Using Conventional Carbon Fiber Processing for Robust Electrocatalysts

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Download Hi-Res ImageDownload to MS-PowerPointCite This:J. Am. Chem. Soc. 2024, 146, 19, 13142-13150
    Article

    Scalable Design of Ru-Embedded Carbon Fabric Using Conventional Carbon Fiber Processing for Robust Electrocatalysts
    Click to copy article linkArticle link copied!

    • Seok-Jin Kim
      Seok-Jin Kim
      School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks (CDCOF), Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
      Advanced Membranes & Porous Materials Center (AMPMC), Physical Science & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
      KAUST Catalysis Center (KCC), Physical Science & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
      More by Seok-Jin Kim
      Orcidhttps://orcid.org/0000-0002-6052-547X
    • Ga-Hyeun Lee
      Ga-Hyeun Lee
      Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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    • Jung-Eun Lee
      Jung-Eun Lee
      Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
      More by Jung-Eun Lee
      Orcidhttps://orcid.org/0000-0003-2692-2356
    • Javeed Mahmood
      Javeed Mahmood
      Advanced Membranes & Porous Materials Center (AMPMC), Physical Science & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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      Orcidhttps://orcid.org/0000-0002-9159-3336
    • Gao-Feng Han
      Gao-Feng Han
      Key Laboratory of Automobile Materials Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
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      Orcidhttps://orcid.org/0000-0001-5943-0492
    • Inkyung Baek
      Inkyung Baek
      Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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    • Changbeom Jeon
      Changbeom Jeon
      Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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    • Minjung Han
      Minjung Han
      Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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    • Hwakyung Jeong
      Hwakyung Jeong
      Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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    • Cafer T. Yavuz*
      Cafer T. Yavuz
      Advanced Membranes & Porous Materials Center (AMPMC), Physical Science & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
      KAUST Catalysis Center (KCC), Physical Science & Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
      *Email: [email protected].
      More by Cafer T. Yavuz
      Orcidhttps://orcid.org/0000-0003-0580-3331
    • Han Gi Chae*
      Han Gi Chae
      Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
      *Email: [email protected].
      More by Han Gi Chae
      Orcidhttps://orcid.org/0000-0003-2196-0986
    • Jong-Beom Baek*
      Jong-Beom Baek
      School of Energy and Chemical Engineering/Center for Dimension-Controllable Organic Frameworks (CDCOF), Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
      *Email: [email protected].
      More by Jong-Beom Baek
      Orcidhttps://orcid.org/0000-0003-4785-2326
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    Journal of the American Chemical Society

    Cite this: J. Am. Chem. Soc. 2024, 146, 19, 13142–13150
    Click to copy citationCitation copied!
    https://doi.org/10.1021/jacs.4c00332
    Published April 5, 2024
    Copyright © 2024 American Chemical Society
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    Abstract

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    Metal–carbon composites are extensively utilized as electrochemical catalysts but face critical challenges in mass production and stability. We report a scalable manufacturing process for ruthenium surface-embedded fabric electrocatalysts (Ru-SFECs) via conventional fiber/fabric manufacturing. Ru-SFECs have excellent catalytic activity and stability toward the hydrogen evolution reaction, exhibiting a low overpotential of 11.9 mV at a current density of 10 mA cm–2 in an alkaline solution (1.0 M aq KOH solution) with only a slight overpotential increment (6.5%) after 10,000 cycles, whereas under identical conditions, that of commercial Pt/C increases 6-fold (from 1.3 to 7.8 mV). Using semipilot-scale equipment, a protocol is optimized for fabricating continuous self-supported electrocatalytic electrodes. Tailoring the fiber processing parameters (tension and temperature) can optimize the structural development, thereby achieving good catalytic performance and mechanical integrity. These findings underscore the significance of self-supporting catalysts, offering a general framework for stable, binder-free electrocatalytic electrode design.

    Copyright © 2024 American Chemical Society

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    • Current density calculation method, Ru residue according to the metal–ligand, additional SEM, TEM, EDS images of Ru-SFECs, particle distribution of Ru in the fiber, photograph of the Ru-SFEC woven cloth and electrical conductivity measurement with data, phase diagram of C–Ru, diameter of Ru-SFEC from different tension, electrocatalytic activity of Ru–H3055 with respect to heat treatment temperature, XPS and Raman spectra of Ru-SFEC, TGA curves, orientation factor from WAXD, and supplementary figures for structural explanation (PDF)

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    Journal of the American Chemical Society

    Cite this: J. Am. Chem. Soc. 2024, 146, 19, 13142–13150
    Click to copy citationCitation copied!
    https://doi.org/10.1021/jacs.4c00332
    Published April 5, 2024
    Copyright © 2024 American Chemical Society
    Request reuse permissions

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