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Boosting electrocatalytic CO2-to-ethanol production via asymmetric C-C coupling

Chemistry

Boosting electrocatalytic CO2-to-ethanol production via asymmetric C-C coupling

P. Wang, H. Yang, et al.

Discover groundbreaking research by Pengtang Wang and colleagues on a silver-modified copper-oxide catalyst that remarkably enhances ethanol production from CO2, achieving a Faradaic efficiency of 40.8%. This innovation not only increases efficiency but also reshapes the future of carbon dioxide reduction.

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Playback language: English
Abstract
Electroreduction of carbon dioxide (CO2) into multicarbon products is of significant research and commercial interest. However, ethanol (EtOH) production efficiency is impractically low due to limited selectivity. This paper reports a silver-modified copper-oxide catalyst (dCu2O/Ag2.3%) exhibiting a Faradaic efficiency of 40.8% and energy efficiency of 22.3% for EtOH production, achieving CO2-to-ethanol conversion under high current operation. In situ studies show that Ag modification optimizes surface Cu sites, steering CO adsorption to trigger asymmetric C-C coupling for EtOH intermediate stabilization.
Publisher
Nature Communications
Published On
Jun 29, 2022
Authors
Pengtang Wang, Hao Yang, Cheng Tang, Yu Wu, Yao Zheng, Tao Cheng, Kenneth Davey, Xiaoqing Huang, Shi-Zhang Qiao
Tags
Electroreduction
Carbon Dioxide
Ethanol Production
Catalyst
Faradaic Efficiency
Copper-Oxide

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