IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v306y2024ics0360544224021157.html
   My bibliography  Save this article

Promotion effects of microwave and carbon dots interactions on hydrolysis for highly efficient hydrogen production

Author

Listed:
  • Luo, Chunlin
  • Liu, Shuai
  • Wang, Yuxin
  • Hu, Jianli
  • Lester, Edward
  • Wu, Tao

Abstract

In this study, carbon dot-doped Co3O4 was synthesized and used in NaBH4 hydrolysis under both microwave and conventional heating. Microwave energy significantly increased the hydrogen generation rate with a CD-doped Co3O4 catalyst, ranging from 34.1 % at 35 °C to 70.7 % at 55 °C compared with conventional heating. This improvement is due to the combined contribution of microwave thermal and non-thermal effects. These phenomena greatly enhances the effective collision frequency of the reaction species at the interface of the catalyst. Furthermore, the kinetics of NaBH4 hydrolysis with the CD-doped Co3O4 catalyst follows a zero-order kinetic model. Under microwave irradiation, the HGR of the CD-doped Co3O4 catalyst was 4.5 times that of pure Co3O4 at 40 °C. Incorporating carbon dots (CDs) into the Co3O4 matrix simultaneously enhances microwave absorption, increases hydrophilicity, and reduces the activation energy needed for breaking down O–H bonds in H2O. These improvements are expected to boost the overall catalytic performance.

Suggested Citation

  • Luo, Chunlin & Liu, Shuai & Wang, Yuxin & Hu, Jianli & Lester, Edward & Wu, Tao, 2024. "Promotion effects of microwave and carbon dots interactions on hydrolysis for highly efficient hydrogen production," Energy, Elsevier, vol. 306(C).
    • Handle: RePEc:eee:energy:v:306:y:2024:i:c:s0360544224021157
    DOI: 10.1016/j.energy.2024.132341
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544224021157
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.132341?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:energy:v:306:y:2024:i:c:s0360544224021157. 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/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.