Electrospun nanofibers for electrochemical reduction of CO₂: A mini review

The electrochemical reduction of CO₂ (CO₂RR) into valuable products represents a step towards alleviating global warming and the energy crisis. However, the sluggish kinetics of the CO₂RR and the competitive hydrogen evolution reaction (HER) still limit the application of CO₂RR. In order to solve these problems, catalysts that can reduce CO₂ with high activity, selectivity and stability are required. Recently, electrospun nanofibers have attracted particular interest as CO₂RR catalysts due to their high conductivity, large surface area, superior stability, etc. In this review, we briefly introduce electrospinning technology and the fundamentals of the CO₂RR. Then, the recent progress of CO₂RR catalysts prepared through electrospinning, including heteroatom-doped and metal-decorated carbon materials and metal fiber materials are systematically discussed. Finally, the future perspectives and challenges of electrospun materials for CO₂RR are presented. This mini review is anticipated to inspire better understanding and further development of electrospun materials for promoting CO₂ electrolysis.