IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v313y2024ics0360544224035953.html
   My bibliography  Save this article

Enhanced formate production from sulfur modified copper for electrocatalytic CO2 reduction

Author

Listed:
  • Wang, Feng
  • Jing, Wenhao
  • Bai, Shengjie
  • Liu, Ya
  • Guo, Liejin

Abstract

Producing liquid fuels with high selectivity and low overpotential has long been a goal of electrocatalytic CO2 reduction reaction (CO2RR). Here we present a detailed study on the structural and catalytic properties of sulfur on copper for CO2RR. Cu2S was formed by enabling sulfur to deposit on the copper surface with a simple surface impregnation method. The sulfur modified samples, especially the sulfur modified oxide-derived copper (SM-OD-Cu), have significantly higher selectivity to formate than the pure and oxide-derived copper. At a potential range of −0.51∼−0.75 V vs. RHE, the selectivity of formate for SM-OD-Cu in the liquid phase was nearly 100 %. Also, the partial current density of formate reached −4.26 mA/cm2 at −0.75 V vs. RHE. By using density functional theory calculation, we found that Cu2S significantly inhibits the CO pathway and hydrogen evolution reaction, and further improves the selectivity of formate.

Suggested Citation

  • Wang, Feng & Jing, Wenhao & Bai, Shengjie & Liu, Ya & Guo, Liejin, 2024. "Enhanced formate production from sulfur modified copper for electrocatalytic CO2 reduction," Energy, Elsevier, vol. 313(C).
    • Handle: RePEc:eee:energy:v:313:y:2024:i:c:s0360544224035953
    DOI: 10.1016/j.energy.2024.133817
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544224035953
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.133817?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

    CO2 reduction; Formate; Copper; Sulfur modified;
    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:energy:v:313:y:2024:i:c:s0360544224035953. 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.