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Carbon-Based Materials for Electrochemical Reduction of CO2 to C2+ Oxygenates: Recent Progress and Remaining Challenges
ACS Catalysis ( IF 11.3 ) Pub Date : 2021-02-02 , DOI: 10.1021/acscatal.0c04714
Kun Zhao 1 , Xie Quan 1
Affiliation  

Electrochemical reduction of CO2 to multicarbon (C2+) products is desirable because of the higher energy density and economic value of C2+ products and the significant scientific issue for coupling of multicarbons. However, efficient conversion of CO2 into C2+ products remains challenging because of the difficulty in C–C coupling. Recently, numerous papers have reported carbon-based materials for C2+ products production from CO2 electrochemical reduction. Because of the unique properties of carbon-based materials in C2+ production, carbon-based materials can be used as a potential alternative for the electrocatalytic conversion of CO2. This Review summarized recent progresses in the formation of C2+ oxygenates from CO2 reduction on carbon-based materials. In this Review, we highlighted the strategies available for achieving C–C coupling on carbon-based electrocatalysts and revealed the relationships between intermediate adsorption energy and the selectivity of oxygenate production from CO2 reduction. Moreover, we provided the understandings for fabricating active sites of CO2 reduction on carbon-based materials and related mechanisms of C2+ oxygenate generation. The remaining challenges and opportunities for the electrochemical conversion of CO2 into C2+ oxygenates were discussed.

中文翻译:

用于电化学还原CO 2到C 2+含氧化合物的碳基材料:最新进展和挑战

由于较高的能量密度和C 2+产品的经济价值以及偶联多碳的重大科学问题,将CO 2电化学还原为多碳(C 2+)产品是理想的。然而,由于C–C耦合的困难,将CO 2有效转化为C 2+产品仍然具有挑战性。最近,许多论文报道了用于从CO 2电化学还原生产C 2+产品的碳基材料。由于碳基材料在C 2+中具有独特的特性在生产中,基于碳的材料可以用作电催化转化CO 2的潜在替代品。这篇综述总结了在碳基材料上由CO 2还原形成C 2+含氧化合物的最新进展。在本综述中,我们重点介绍了在碳基电催化剂上实现C-C偶联的可用策略,并揭示了中间吸附能与CO 2还原产生的氧化物的选择性之间的关系。此外,我们提供了在碳基材料上制造CO 2还原活性位的认识以及C 2+的相关机理。含氧化合物的产生。讨论了将CO 2电化学转化为C 2+含氧化合物的剩余挑战和机遇。
更新日期:2021-02-19
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