IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-13061-0.html
   My bibliography  Save this article

Spectroelectrochemical study of water oxidation on nickel and iron oxyhydroxide electrocatalysts

Author

Listed:
  • Laia Francàs

    (Imperial College London)

  • Sacha Corby

    (Imperial College London)

  • Shababa Selim

    (Imperial College London)

  • Dongho Lee

    (University of Wisconsin-Madison)

  • Camilo A. Mesa

    (Imperial College London)

  • Robert Godin

    (Imperial College London
    Department of Chemistry)

  • Ernest Pastor

    (Imperial College London)

  • Ifan E. L. Stephens

    (Imperial College London)

  • Kyoung-Shin Choi

    (University of Wisconsin-Madison)

  • James R. Durrant

    (Imperial College London)

Abstract

Ni/Fe oxyhydroxides are the best performing Earth-abundant electrocatalysts for water oxidation. However, the origin of their remarkable performance is not well understood. Herein, we employ spectroelectrochemical techniques to analyse the kinetics of water oxidation on a series of Ni/Fe oxyhydroxide films: FeOOH, FeOOHNiOOH, and Ni(Fe)OOH (5% Fe). The concentrations and reaction rates of the oxidised states accumulated during catalysis are determined. Ni(Fe)OOH is found to exhibit the fastest reaction kinetics but accumulates fewer states, resulting in a similar performance to FeOOHNiOOH. The later catalytic onset in FeOOH is attributed to an anodic shift in the accumulation of oxidised states. Rate law analyses reveal that the rate limiting step for each catalyst involves the accumulation of four oxidised states, Ni-centred for Ni(Fe)OOH but Fe-centred for FeOOH and FeOOHNiOOH. We conclude by highlighting the importance of equilibria between these accumulated species and reactive intermediates in determining the activity of these materials.

Suggested Citation

  • Laia Francàs & Sacha Corby & Shababa Selim & Dongho Lee & Camilo A. Mesa & Robert Godin & Ernest Pastor & Ifan E. L. Stephens & Kyoung-Shin Choi & James R. Durrant, 2019. "Spectroelectrochemical study of water oxidation on nickel and iron oxyhydroxide electrocatalysts," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13061-0
    DOI: 10.1038/s41467-019-13061-0
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-13061-0
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-13061-0?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Panlong Zhai & Chen Wang & Yuanyuan Zhao & Yanxue Zhang & Junfeng Gao & Licheng Sun & Jungang Hou, 2023. "Regulating electronic states of nitride/hydroxide to accelerate kinetics for oxygen evolution at large current density," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Qianbao Wu & Junwu Liang & Mengjun Xiao & Chang Long & Lei Li & Zhenhua Zeng & Andraž Mavrič & Xia Zheng & Jing Zhu & Hai-Wei Liang & Hongfei Liu & Matjaz Valant & Wei Wang & Zhengxing Lv & Jiong Li &, 2023. "Non-covalent ligand-oxide interaction promotes oxygen evolution," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13061-0. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.