ABSTRACT

Carbon dioxide as the main culprit of global temperature rising has seized the attention worldwide. CO₂ capture and storage can rapidly decrease the CO₂ concentration in the atmosphere. As it is also recognized as eminent C1 source, reasonable CO₂ utilization is a promising method for solving CO₂ problems. Among various CO₂ conversion pathways, epoxide-CO₂ cycloaddition is a fascinating approach owing to its 100% atomic efficiency. Till nowadays, various sorbents and catalysts emerged for efficient CO₂ capture and epoxide-CO₂ cycloaddition catalysis. Mesoporous SiO₂ as a good carrier attracts tremendous interests in its improvements for more effective CO₂ capture and conversion catalysis in the past two decades resulting from its good hydrothermal stability and easy-modification. Abundant silanol as hydrogen bond donors also benefits the reaction catalysis. Functionalization from metal introduction to nonmetal active components supporting has been applied to improve the CO₂ adsorption capacity and the catalytic activity of mesoporous SiO₂ to epoxide-CO₂ cycloaddition. Therefore, an overview on the progress in functionalized mesoporous SiO₂ for CO₂ capture and conversion to cyclic carbonates catalysis is summarized here to make a clear understanding to the role of functionalized mesoporous SiO₂ as CO₂ sorbents and catalysts in the epoxide-CO₂ cycloaddition reaction.

摘要

二氧化碳作为全球气温上升的罪魁祸首，已经引起了全世界的关注。CO ₂捕获和储存可以迅速降低大气中的CO _2浓度。由于CO 2 也是公认的重要C1来源，因此合理利用CO ₂是解决CO ₂问题的一种有前途的方法。在各种 CO ₂转化途径中，环氧化物-CO ₂环加成是一种引人入胜的方法，因为它具有 100% 的原子效率。迄今为止，出现了各种吸附剂和催化剂用于有效的CO ₂捕获和环氧化物-CO ₂环加成催化。介孔SiO ₂作为一种良好的载体，由于其良好的水热稳定性和易于改性，在过去的二十年中，由于其在更有效的 CO _{2捕获和转化催化方面的改进引起了极大的兴趣。}丰富的硅醇作为氢键供体也有利于反应催化。从金属引入到非金属活性组分负载的功能化已被应用于提高CO _{2吸附能力和介孔SiO 2}对环氧化物-CO ₂环加成的催化活性。因此， CO _{2功能化介孔SiO 2}研究进展综述_{此处总结了捕获和转化为环状碳酸酯的催化作用，以便清楚地了解功能化介孔 SiO 2}作为 CO ₂吸附剂和催化剂在环氧化物-CO ₂环加成反应中的作用。