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Highly active and stable OER electrocatalysts derived from Sr2MIrO6 for proton exchange membrane water electrolyzers

Author

Listed:
  • María Retuerto

    (Instituto de Catálisis y Petroleoquímica)

  • Laura Pascual

    (Instituto de Catálisis y Petroleoquímica)

  • Jorge Torrero

    (Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR))

  • Mohamed Abdel Salam

    (King Abdulaziz University)

  • Álvaro Tolosana-Moranchel

    (Instituto de Catálisis y Petroleoquímica)

  • Diego Gianolio

    (Harwell Science and Innovation Campus)

  • Pilar Ferrer

    (Harwell Science and Innovation Campus)

  • Paula Kayser

    (Instituto de Ciencia de Materiales de Madrid)

  • Vincent Wilke

    (Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR))

  • Svenja Stiber

    (Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR))

  • Verónica Celorrio

    (Harwell Science and Innovation Campus)

  • Mohamed Mokthar

    (King Abdulaziz University)

  • Daniel García Sanchez

    (Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR))

  • Aldo Saul Gago

    (Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR))

  • Kaspar Andreas Friedrich

    (Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR))

  • Miguel Antonio Peña

    (Instituto de Catálisis y Petroleoquímica)

  • José Antonio Alonso

    (Instituto de Ciencia de Materiales de Madrid)

  • Sergio Rojas

    (Instituto de Catálisis y Petroleoquímica)

Abstract

Proton exchange membrane water electrolysis is a promising technology to produce green hydrogen from renewables, as it can efficiently achieve high current densities. Lowering iridium amount in oxygen evolution reaction electrocatalysts is critical for achieving cost-effective production of green hydrogen. In this work, we develop catalysts from Ir double perovskites. Sr2CaIrO6 achieves 10 mA cm−2 at only 1.48 V. The surface of the perovskite reconstructs when immersed in an acidic electrolyte and during the first catalytic cycles, resulting in a stable surface conformed by short-range order edge-sharing IrO6 octahedra arranged in an open structure responsible for the high performance. A proton exchange membrane water electrolysis cell is developed with Sr2CaIrO6 as anode and low Ir loading (0.4 mgIr cm−2). The cell achieves 2.40 V at 6 A cm−2 (overload) and no loss in performance at a constant 2 A cm−2 (nominal load). Thus, reducing Ir use without compromising efficiency and lifetime.

Suggested Citation

  • María Retuerto & Laura Pascual & Jorge Torrero & Mohamed Abdel Salam & Álvaro Tolosana-Moranchel & Diego Gianolio & Pilar Ferrer & Paula Kayser & Vincent Wilke & Svenja Stiber & Verónica Celorrio & Mo, 2022. "Highly active and stable OER electrocatalysts derived from Sr2MIrO6 for proton exchange membrane water electrolyzers," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-35631-5
    DOI: 10.1038/s41467-022-35631-5
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    References listed on IDEAS

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    1. Oscar Diaz-Morales & Stefan Raaijman & Ruud Kortlever & Patricia J. Kooyman & Tim Wezendonk & Jorge Gascon & W. T. Fu & Marc T. M. Koper, 2016. "Iridium-based double perovskites for efficient water oxidation in acid media," Nature Communications, Nature, vol. 7(1), pages 1-6, November.
    2. Lan Yang & Guangtao Yu & Xuan Ai & Wensheng Yan & Hengli Duan & Wei Chen & Xiaotian Li & Ting Wang & Chenghui Zhang & Xuri Huang & Jie-Sheng Chen & Xiaoxin Zou, 2018. "Efficient oxygen evolution electrocatalysis in acid by a perovskite with face-sharing IrO6 octahedral dimers," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    3. Marine Elmaalouf & Mateusz Odziomek & Silvia Duran & Maxime Gayrard & Mounib Bahri & Cédric Tard & Andrea Zitolo & Benedikt Lassalle-Kaiser & Jean-Yves Piquemal & Ovidiu Ersen & Cédric Boissière & Clé, 2021. "The origin of the high electrochemical activity of pseudo-amorphous iridium oxides," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    4. Yubo Chen & Haiyan Li & Jingxian Wang & Yonghua Du & Shibo Xi & Yuanmiao Sun & Matthew Sherburne & Joel W. Ager & Adrian C. Fisher & Zhichuan J. Xu, 2019. "Exceptionally active iridium evolved from a pseudo-cubic perovskite for oxygen evolution in acid," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
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    Cited by:

    1. Yuannan Wang & Mingcheng Zhang & Zhenye Kang & Lei Shi & Yucheng Shen & Boyuan Tian & Yongcun Zou & Hui Chen & Xiaoxin Zou, 2023. "Nano-metal diborides-supported anode catalyst with strongly coupled TaOx/IrO2 catalytic layer for low-iridium-loading proton exchange membrane electrolyzer," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    2. Dmitry Galyamin & Jorge Torrero & Isabel Rodríguez & Manuel J. Kolb & Pilar Ferrer & Laura Pascual & Mohamed Abdel Salam & Diego Gianolio & Verónica Celorrio & Mohamed Mokhtar & Daniel Garcia Sanchez , 2023. "Active and durable R2MnRuO7 pyrochlores with low Ru content for acidic oxygen evolution," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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