Catalyst Design for Electrochemical Reduction of CO2 to Multicarbon Products
Catalyst Design for Electrochemical Reduction of CO2 to Multicarbon Products
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CO2 电化学还原为多碳产品的催化剂设计
DOI：
10.1002/smtd.202100736
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发表时间：
2021-09
期刊：
影响因子：
12.4
通讯作者：
Zhen Zhou
中科院分区：
文献类型：
--
作者：
Yuanyuan Xue;Yibo Guo;Huijuan Cui;Zhen Zhou
由可再生能源（如风能和太阳能）驱动的CO2电化学还原（CO2RR）是实现碳中和的有效途径。CO2RR的多碳（C2+）产物是非常理想的，因为它们是重要的燃料、化学品和工业原料。然而，CO2选择性还原为C2+产物是特别具有挑战性的，这是由于低选择性、低收率和高过电位。由于CO2RR的性能与催化剂的结构和组成密切相关，这些结构和组成改变了CO2RR中产生的中间体的结合能，因此有必要系统地研究这些影响以实现可能的设计策略。在此基础上，从催化剂结构和组成的调整出发，讨论了CO2转化为C2+产物的催化剂设计策略，如形貌控制、缺陷工程、表面修饰和表面修饰等。同时重点介绍了CO2RR过程中催化剂的反应机理和结构演变。最后，提出了进一步改进CO2RR技术的挑战和前景。
Electrochemical reduction of CO2 (CO2RR), driven by renewable energy (such as wind and solar energy), is an effective route toward carbon neutralization. The multicarbon (C2+) products from CO2RR are highly desirable, since they are important fuels, chemicals, and industrial raw materials. However, selective reduction of CO2 to C2+ products is especially challenging, due to low selectivity, poor yield, and high overpotential. Since the performance of CO2RR is closely related to the structure and composition of catalysts, which alter the binding energy of intermediates generated in CO2RR, it is necessary to study these effects systematically to achieve possible design strategies. Herein, design strategies toward catalysts for CO2 conversion to C2+ products are discussed on the basis of the adjustment of the structure and composition of catalysts, such as morphology control, defect engineering, bimetal, and surface modification. Meanwhile the reaction mechanisms and structure evolution of catalysts during CO2RR are focused on in particular. Finally, challenges and perspectives are proposed for further improvement of CO2RR technologies.
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