IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v12y2021i1d10.1038_s41467-021-24453-6.html
   My bibliography  Save this article

Detection of high-valent iron species in alloyed oxidic cobaltates for catalysing the oxygen evolution reaction

Author

Listed:
  • Nancy Li

    (Harvard University)

  • Ryan G. Hadt

    (Argonne National Laboratory
    California Institute of Technology)

  • Dugan Hayes

    (Argonne National Laboratory
    University of Rhode Island)

  • Lin X. Chen

    (Argonne National Laboratory
    Northwestern University)

  • Daniel G. Nocera

    (Harvard University)

Abstract

Iron alloying of oxidic cobaltate catalysts results in catalytic activity for oxygen evolution on par with Ni-Fe oxides in base but at much higher alloying compositions. Zero-field 57Fe Mössbauer spectroscopy and X-ray absorption spectroscopy (XAS) are able to clearly identify Fe4+ in mixed-metal Co-Fe oxides. The highest Fe4+ population is obtained in the 40–60% Fe alloying range, and XAS identifies the ion residing in an octahedral oxide ligand field. The oxygen evolution reaction (OER) activity, as reflected in Tafel analysis of CoFeOx films in 1 M KOH, tracks the absolute concentration of Fe4+. The results reported herein suggest an important role for the formation of the Fe4+ redox state in activating cobaltate OER catalysts at high iron loadings.

Suggested Citation

  • Nancy Li & Ryan G. Hadt & Dugan Hayes & Lin X. Chen & Daniel G. Nocera, 2021. "Detection of high-valent iron species in alloyed oxidic cobaltates for catalysing the oxygen evolution reaction," Nature Communications, Nature, vol. 12(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-24453-6
    DOI: 10.1038/s41467-021-24453-6
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-021-24453-6
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-021-24453-6?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. Agnes E. Thorarinsdottir & Samuel S. Veroneau & Daniel G. Nocera, 2022. "Self-healing oxygen evolution catalysts," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Shao, Yuewen & Guo, Mingzhu & Fan, Mengjiao & Sun, Kai & Gao, Guoming & Li, Chao & Kontchouo, Félix Mérimé Bkangmo & Zhang, Lijun & Zhang, Shu & Hu, Xun, 2023. "Importance of oxyphilic FeNi alloy in NiFeAl catalysts for selective conversion of biomass-derived 5-hydroxymethylfurfural to 2,5-dimethylfuran," Renewable Energy, Elsevier, vol. 208(C), pages 105-118.
    3. Yuanmiao Sun & Jiarui Wang & Shibo Xi & Jingjing Shen & Songzhu Luo & Jingjie Ge & Shengnan Sun & Yubo Chen & John V. Hanna & Shuzhou Li & Xin Wang & Zhichuan J. Xu, 2023. "Navigating surface reconstruction of spinel oxides for electrochemical water oxidation," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    4. Yingqing Ou & Liam P. Twight & Bipasa Samanta & Lu Liu & Santu Biswas & Jessica L. Fehrs & Nicole A. Sagui & Javier Villalobos & Joaquín Morales-Santelices & Denis Antipin & Marcel Risch & Maytal Casp, 2023. "Cooperative Fe sites on transition metal (oxy)hydroxides drive high oxygen evolution activity in base," 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:12:y:2021:i:1:d:10.1038_s41467-021-24453-6. 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.