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Type: Journal article
Title: Understanding the roadmap for electrochemical reduction of CO₂ to multi-carbon oxygenates and hydrocarbons on copper-based catalysts
Other Titles: Understanding the roadmap for electrochemical reduction of CO(2) to multi-carbon oxygenates and hydrocarbons on copper-based catalysts
Author: Zheng, Y.
Vasileff, A.
Zhou, X.
Jiao, Y.
Jaroniec, M.
Qiao, S.Z.
Citation: Journal of the American Chemical Society, 2019; 141(19):7646-7659
Publisher: American Chemical Society
Issue Date: 2019
ISSN: 0002-7863
Statement of
Yao Zheng, Anthony Vasileff, Xianlong Zhou, Yan Jiao, Mietek Jaroniec, and Shi-Zhang Qiao
Abstract: Electrochemical reduction of CO₂ to high-energy-density oxygenates and hydrocarbons beyond CO is important for long-term and large-scale renewable energy storage. However, the key step of the C-C bond formation needed for the generation of C₂ products induces an additional barrier on the reaction. This inevitably creates larger overpotentials and greater variety of products as compared to the conversion of CO₂ to C₁ products. Therefore, an in-depth understanding of the catalytic mechanism is required for advancing the design of efficient electrocatalysts to control the reaction pathway to the desired products. Herein, we present a critical appraisal of reduction of CO₂ to C₂ products focusing on the connection between the fundamentals of reaction and efficient electrocatalysts. An in-depth discussion of the mechanistic aspects of various C₂ reaction pathways on copper-based catalysts is presented together with consideration of practical factors under electrocatalytic operating conditions. By providing some typical examples illustrating the benefit of merging theoretical calculations, surface characterization, and electrochemical measurements, we try to address the key issues of the ongoing debate toward better understanding electrochemical reduction of CO₂ at the atomic level and envisioning the roadmap for C₂ products generation.
Rights: © 2019 American Chemical Society
DOI: 10.1021/jacs.9b02124
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Chemical Engineering publications

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