Liao Guangfu, Ding Guixiang, Yang Bin, Li Chunxue
National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi 832003, China.
Precis Chem. 2024 Jan 17;2(2):49-56. doi: 10.1021/prechem.3c00112. eCollection 2024 Feb 26.
An energy crisis and significant anthropogenic CO emissions as a result of rising fossil fuel consumption have caused a rapid increase in global temperature. One of the best solutions to these two issues is thought to be the photocatalytic reduction of CO into value-added carbon-containing products. In this aspect, the main challenges mainly include the photocatalytic mechanism, reaction activity, and product selectivity, especially in ambiguous reaction pathways and product selectivity, an unclear charge transfer mechanism, and an overestimate of product yield. Therefore, in this perspective, we attempt to exhibit the discussion and in-depth analysis of the possible reaction pathways and product selectivity, the specific charge transfer mechanism, and the origin of carbon-containing products in phtocatalytic CO reduction. Besides, the fundamentals for photocatalytic CO reduction are also illustrated. Finally, the state-of-the-art challenges and perspectives in CO photoreduction are highlighted and discussed in detail. This perspective is expected to evoke more research attention for the photocatalytic reduction of CO into value-added products.
能源危机以及化石燃料消耗增加导致的大量人为二氧化碳排放，已使全球气温迅速上升。这两个问题的最佳解决方案之一被认为是将二氧化碳光催化还原为增值含碳产品。在这方面，主要挑战主要包括光催化机理、反应活性和产物选择性，特别是在模糊的反应途径和产物选择性、不明确的电荷转移机制以及对产物产率的高估方面。因此，从这个角度出发，我们试图对光催化二氧化碳还原中可能的反应途径和产物选择性、具体的电荷转移机制以及含碳产物的来源进行讨论和深入分析。此外，还阐述了光催化二氧化碳还原的基本原理。最后，详细强调并讨论了二氧化碳光催化还原方面的最新挑战和前景。这一观点有望引起更多对将二氧化碳光催化还原为增值产品的研究关注。
