Promoting CO2 electroreduction to CO by a graphdiyne-stabilized Au nanoparticle catalyst

Guodong Shi; De Guo; Jun-Tao Wang; Yanwei Luo; Zhiwei Hou; Zixiong Fan; Mei Wang; Mingjian Yuan

doi:10.1039/d3dt03432a

Promoting CO₂ electroreduction to CO by a graphdiyne-stabilized Au nanoparticle catalyst

Dalton Trans. 2023 Dec 19;53(1):245-250. doi: 10.1039/d3dt03432a.

Authors

Guodong Shi¹, De Guo², Jun-Tao Wang¹, Yanwei Luo¹, Zhiwei Hou¹, Zixiong Fan³, Mei Wang², Mingjian Yuan³

Affiliations

¹ College of Science, Henan University of Technology, Zhengzhou 450001, China. shigd@haut.edu.cn.
² School of Materials Science and Engineering, Institute for New Energy Materials & Low Carbon Technologies, Tianjin University of Technology, Tianjin 300384, China.
³ Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China.

PMID: 38037871
DOI: 10.1039/d3dt03432a

Abstract

The electrochemical CO₂ reduction reaction (CO₂RR) gives an ideal approach for producing valuable chemicals, offering dual benefits in terms of environmental preservation and carbon recycling. In this work, a strong synergistic effect is constructed by adopting electron-rich graphdiyne (GDY) as the supporting matrix, which significantly stabilizes the Au active sites and boosts the CO₂RR process. The as-prepared GDY-supported Au nanoparticles (Au/GDY) exhibit excellent CO₂RR performance, with an extremely high faradaic efficiency of 94.6% for CO as well as good stability with continuous electrolysis for 36 hours. The superior activity and stability of the Au/GDY catalyst can be attributed to the electronic interaction between Au nanoparticles and the GDY substrate, resulting in enhanced electron transfer rates and a stable network of catalytically active sites that ultimately promote the CO₂RR.