Abstract
The electrochemical CO2 reduction reaction (CO2RR) to yield high-value added fuels and chemicals provides a promising approach towards global carbon neutrality. Constant endeavors have been devoted to the exploration of high-efficiency catalyst with rapid reaction kinetics, low energy input, and high selectivity. In addition to the maximum metal atomic utilization and unique catalytic performance of single-atom catalyst (SAC), dual-atomic-site catalysts (DASCs) offer more sophisticated and tunable atomic structure through the modulations of another adjacent metal atom, which can bring new opportunities for CO2RR as a deeper extension of SACs and have recently aroused surging interest. In this review, we highlight the recent advances on DASCs for enhancing CO2RR. First, the classification, synthesis, and identification of DASCs are provided according to the geometric structure and electronic configuration of dual-atomic active sites. Then, the catalytic applications of DASCs in CO2RR are categorized based on marriage-type, hetero-nuclear, and homo-nuclear dual-atomic sites. Particularly, the structure-activity relationship of DASCs in CO2RR is elaborately summarized through systematically analyzing the reaction pathways and the atom structures. Finally, the opportunities and challenges are proposed for inspiring the design of future DASCs with high structural accuracy and high CO2RR activity and selectivity.
摘要
用于生产高附加值燃料和化学品的电化学CO2还原反应(CO2 RR)为实现全球碳中和提供了一种有前景的方法. 近年来, 单原子催化 剂(SACs)由于金属的最大原子利用率和独特的催化性能受到越来越多 的关注. 相比之下, 除了具有单原子催化剂的上述优点外, 双原子位点 催化剂(DASCs)还可以通过调节另一种相邻金属从而实现更复杂、可 调的原子结构. 作为SAC的更深层次的延伸, DASCs可以为CO2RR带来 新的机遇, 最近引起了人们的浓厚兴趣. 本文中, 我们重点介绍了 DASCs在提升CO2RR性能方面的最新进展. 首先, 根据双原子活性位点 的几何结构和电子配置, 对DASCs的分类、合成和证实进行了讨论. 之 后, 根据结合型、异核和同核双原子位点对DASCs在CO2RR中的催化 应用进行了分类. 特别是通过系统地分析反应途径和原子结构, 详细总 结了DASCs在CO2RR中的构效关系. 最后, 提出了未来设计DASCs面临 的机遇和挑战, 以启发设计具有高结构精度和高CO2RR活性、选择性 的DASCs.
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Acknowledgements
This work was supported by Shandong Provincial Natural Science Foundation (ZR2019BB025), the Project of “20 items of University” of Jinan (2018GXRC031), and the National Natural Science Foundation of China (22071172).
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Wang H and Zhang Z proposed the topic and outline of the review paper. Qiu N and Li J collected the related information and wrote the manuscript.
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Haiqing Wang is an assistant professor at the Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, after a postdoctoral fellowship at the Department of Chemistry, Tsinghua University. He received his PhD degree in 2015 from Nanjing Tech University. His current research focuses on nanostructure-controlled functional materials for energy and environmental applications including electro(photo)-catalytic water splitting, organics conversion, and CO2 reduction.
Zhicheng Zhang is currently a professor at the Department of Chemistry, School of Science, Tianjin University. He received his PhD degree from the College of Chemical Engineering, China University of Petroleum (Beijing) in 2012. He then worked as a postdoc at the Department of Chemistry, Tsinghua University, Beijing, China. In 2014, he worked as a research fellow at the School of Materials Science and Engineering, Nanyang Technological University, Singapore. His research interests mainly focus on the synthesis and catalytic application of metalbased nanomaterials.
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Qiu, N., Li, J., Wang, H. et al. Emerging dual-atomic-site catalysts for electrocatalytic CO2 reduction. Sci. China Mater. 65, 3302–3323 (2022). https://doi.org/10.1007/s40843-022-2189-x
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DOI: https://doi.org/10.1007/s40843-022-2189-x