IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v231y2024ics0960148124010772.html
   My bibliography  Save this article

Low-temperature solid-state hydrogen storage via efficiently catalyzed MgH2

Author

Listed:
  • Dan, Liang
  • Wang, Hui
  • Yang, Xiaobao
  • Liu, Jiangwen
  • Ouyang, Liuzhang
  • Zhu, Min

Abstract

The urgent development of safe, high-density hydrogen transport and storage technologies is crucial for renewable hydrogen energy. In the present work, a highly efficient N, Nb-doped TiO2 catalyst was synthesized using an NH3 plasma process to catalyze reversible hydrogen sorption of the high-density hydride MgH2. The catalyzed MgH2 exhibits rapid hydrogen uptake even at room temperature and dehydrogenation at a greatly decreased temperature of 175 °C. The onset dehydrogenation temperature of the catalyzed MgH2 is reduced to 155 °C with an activation energy of 57.33 kJ/mol. Theoretical calculations suggest that the modified TiO2 significantly reduces the dissociation energy barrier and the H2 dissociation energy, accelerating the combination of hydrogen atoms with Mg. The presence of N atoms could also weaken the Mg–H bonds, facilitating the decomposition of MgH2. This work demonstrates the potential of high-density solid-state hydrogen storage via catalyzed MgH2 under moderate conditions.

Suggested Citation

  • Dan, Liang & Wang, Hui & Yang, Xiaobao & Liu, Jiangwen & Ouyang, Liuzhang & Zhu, Min, 2024. "Low-temperature solid-state hydrogen storage via efficiently catalyzed MgH2," Renewable Energy, Elsevier, vol. 231(C).
    • Handle: RePEc:eee:renene:v:231:y:2024:i:c:s0960148124010772
    DOI: 10.1016/j.renene.2024.121009
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148124010772
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2024.121009?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.

    More about this item

    Keywords

    Hydrogen energy; MgH2; TiO2 catalysis; N-doping; Nb-doping;
    All these keywords.

    JEL classification:

    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:eee:renene:v:231:y:2024:i:c:s0960148124010772. 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.