Qadir Muhammad I, Dupont Jairton
Instituto de Química, Universidade Federal de Goiás-UFG, Av. Esperança s/n, Câmpus Samambaia., 74690-900, Goiânia, Goiás, Brazil.
Institute of Chemistry, Universidade Federal do Rio Grande do Sul-UFRGS, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, RS, Brazil.
Angew Chem Int Ed Engl. 2023 Aug 1;62(31):e202301497. doi: 10.1002/anie.202301497. Epub 2023 Apr 7.
Ionic liquids (ILs) are considered to be potential material devices for CO capturing and conversion to energy-adducts. They form a cage (confined-space) around the catalyst providing an ionic nano-container environment which serves as physical-chemical barrier that selectively controls the diffusion of reactants, intermediates, and products to the catalytic active sites via their hydrophobicity and contact ion pairs. Hence, the electronic properties of the catalysts in ILs can be tuned by the proper choice of the IL-cations and anions that strongly influence the residence time/diffusion of the reactants, intermediates, and products in the nano-environment. On the other hand, ILs provide driving force towards photocatalytic redox process to increase the CO photoreduction. By combining ILs with the semiconductor, unique solid semiconductor-liquid commodities are generated that can lower the CO activation energy barrier by modulating the electronic properties of the semiconductor surface. This mini-review provides a brief overview of the recent advances in IL assisted thermal conversion of CO to hydrocarbons, formic acid, methanol, dimethyl carbonate, and cyclic carbonates as well as its photo-conversion to solar fuels.
离子液体（ILs）被认为是用于捕获二氧化碳并将其转化为能量加合物的潜在材料装置。它们在催化剂周围形成一个笼状结构（受限空间），提供一个离子纳米容器环境，该环境作为物理化学屏障，通过其疏水性和接触离子对选择性地控制反应物、中间体和产物向催化活性位点的扩散。因此，通过适当选择对反应物、中间体和产物在纳米环境中的停留时间/扩散有强烈影响的离子液体阳离子和阴离子，可以调节离子液体中催化剂的电子性质。另一方面，离子液体为光催化氧化还原过程提供驱动力，以增加二氧化碳的光还原。通过将离子液体与半导体结合，产生了独特的固体半导体 - 液体组合，其可以通过调节半导体表面的电子性质来降低二氧化碳的活化能垒。本综述简要概述了离子液体辅助下二氧化碳热转化为碳氢化合物、甲酸、甲醇、碳酸二甲酯和环状碳酸酯以及其光转化为太阳能燃料的最新进展。
