IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v251y2025ics096014812501122x.html
   My bibliography  Save this article

Modulation of active Mo sites through push-pull electron effect for enhanced hydrogen evolution reaction

Author

Listed:
  • Wang, Haohao
  • Liang, Jingye
  • Huo, Xiaowen
  • Wang, Run
  • Zhao, Xiaoxu
  • Wang, Haitao
  • Chang, Na

Abstract

Hydrogen energy, as a green and clean renewable energy source, has become a central focus in future energy development. Due to its high efficiency hydrogen production capability, the photo-assisted electrocatalysis hydrogen evolution reaction (HER) is considered a promising technology for future hydrogen acquisition. Tremendous strategies have been attempted to optimize the hydrogen adsorption free energy (ΔGH∗) on the catalyst surface to thus increase HER. However, utilizing the intramolecular electron transfer for molybdenum dioxide-based (MoO2) catalyst to regulate the catalyst's ΔGH∗ remains challenging. In this study, the core-shell structured Fe2Mo3O8/MoO2@C nanoparticle photo-assisted electrocatalysts are derived from calcining Mo/Fe-based bimetallic metal organic frameworks (Mo/Fe-MOFs). The asymmetric distribution of Mo and Fe, coupled with the role of Fe in donating electrons to active Mo sites, optimizes the ΔGH∗ by forming Mo-O-Fe bonds through the bimetallic push-pull electron effect. The Fe2Mo3O8/MoO2@C shows excellent HER performance, achieving a current density of 10 mV/cm2 with overpotential of only −0.16 V in alkaline solution under photo-assisted conditions, which is superior to that of Mo-MOFs (−0.51 V). It also exhibits a high HER activity at all pH ranges, an outstanding durability and stability. This work highlights the importance of the push-pull electron effect in enhancing catalytic performance.

Suggested Citation

  • Wang, Haohao & Liang, Jingye & Huo, Xiaowen & Wang, Run & Zhao, Xiaoxu & Wang, Haitao & Chang, Na, 2025. "Modulation of active Mo sites through push-pull electron effect for enhanced hydrogen evolution reaction," Renewable Energy, Elsevier, vol. 251(C).
    • Handle: RePEc:eee:renene:v:251:y:2025:i:c:s096014812501122x
    DOI: 10.1016/j.renene.2025.123460
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S096014812501122X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2025.123460?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
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    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:eee:renene:v:251:y:2025:i:c:s096014812501122x. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    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.