金团簇电催化二氧化碳还原反应的研究进展

二氧化碳电还原反应(CO₂RR)在改善能源利用方式、 实现可持续碳循环以及生产高附加值液体燃料和化学品等方面具有广阔的应用前景, 近年来受到广泛关注. 有机配体保护的金团簇具有确定的晶体结构, 其不同的尺寸、 配体及组成可以有效调控氧化还原电位, 作为一种独特的模型催化剂, 为探索原子水平的CO₂RR反应机理提供了新机遇. 本文综合评述了纯金团簇和异金属原子掺杂的金团簇催化CO₂RR的研究进展, 包括金团簇的电荷、 尺寸、 配体以及掺杂对CO₂RR性能的影响, 重点讨论了CO₂RR的反应机理, 总结了金团簇在CO₂RR中所面临的挑战, 并展望了金团簇在CO₂RR中未来的研究方向和发展前景.

Research Progress in Electrocatalytic CO2 Reduction Reaction over Gold Clusters

Recently， the electrocatalytic CO₂ reduction reaction（CO₂RR） has attracted great attention because its wide application prospects in improving energy utilization， realizing sustainable carbon recycle and producing high value-added liquid fuels and chemicals. Atomically precise gold clusters protected by organic ligands show many advantages for electrocatalysis due to the well-defined structures. The redox potentials can be tuned by their cluster size， ligand， and composition of these clusters. Acted as ideal model catalysts， the gold clusters provide a new opportunity to explore the reaction mechanism of CO₂RR at the atomic level. In this review， the research progress of CO₂RR catalyzed by gold clusters is surveyed， including the effects of the charge， size， ligand and doping of gold nanoclusters on the performances of CO₂RR. Particularly， the reaction mechanism of CO₂RR is discussed in details. Besides， the challenges and prospects of gold nanoclusters in CO₂RR are also presented.