Chemistry

Steering carbon dioxide reduction toward C-C coupling using copper electrodes modified with porous molecular films

S. Zhao, O. Christensen, et al.

This groundbreaking research conducted by Siqi Zhao, Oliver Christensen, Zhaozong Sun, and colleagues reveals how porous bipyridine-based films significantly enhance the performance of copper electrodes in electrochemical carbon dioxide reduction, achieving nearly a tenfold increase in ethylene formation's intrinsic current density and multicarbon product selectivity. Discover the implications of these innovations on CO2RR.

00:00

Playback language: English

Index

Abstract

This study investigates the impact of porous bipyridine-based films on copper electrodes for electrochemical carbon dioxide reduction (CO2RR). By varying film thickness and porosity, the researchers achieved almost a tenfold increase in ethylene formation's intrinsic current density and a significant rise in multicarbon product selectivity (from 9.7% to 61.9%). A microkinetic model suggests that thick, porous films enhance local carbon monoxide (CO) partial pressure and surface coverage, promoting C-C coupling and multicarbon product formation.

Publisher

Nature Communications

Published On

Feb 15, 2023

Authors

Siqi Zhao, Oliver Christensen, Zhaozong Sun, Hongqing Liang, Alexander Bagger, Kristian Torbensen, Pegah Nazari, Jeppe Vang Lauritsen, Steen Uttrup Pedersen, Jan Rossmeisl, Kim Daasbjerg

Related Publications

Explore these studies to deepen your understanding of the subject.

Chemistry

Double layer charging driven carbon dioxide adsorption limits the rate of electrochemical carbon dioxide reduction on Gold

S. Ringe, C. G. Morales-guio, et al.

Engineering and Technology

Toward economical application of carbon capture and utilization technology with near-zero carbon emission

K. M. G. Langie, K. Tak, et al.

Chemistry

Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water

Y. Wang, X. Liu, et al.

Engineering and Technology

Capturing carbon dioxide from air with charged-sorbents

H. Li, M. E. Zick, et al.

Listen, Learn & Level Up

Over 10,000 hours of research content in 25+ fields, available in 12+ languages.

No more digging through PDFs, just hit play and absorb the world's latest research in your language, on your time.

listen to research audio papers with researchbunny