Advance and Prospective on CO₂ Activation and Transformation Strategy

Abstract

Climate change and depletion of fossil fuels have drawn considerable attention. Considering carbon dioxide is both the dominant greenhouse gas and renewable C 1 source, CO 2 valorization into valuable chemicals is considered to reconcile the environment benefit and sustainable chemistry development. Unfortunately, the thermodynamic stability and kinetic inertness of CO 2 make its chemical transformation challenging. As a consequence, developing highly efficient catalytic systems and synthetic protocols is crucial for CO 2 conversion. In recent years, Heʼs group made great progress on strategy design and catalyst development for CO 2 conversion. A series novel CO 2 conversion strategies are proposed, including CO 2 capture and in-situ transformation, hierarchical reductive functionalization of CO 2 , designing thermodynamically favorable reactions by multi-component cascade reaction and photo-promoted CO 2 transformation. Concurrently, the corresponding highly efficient catalytic systems were also developed based on the reaction mechanism and thus CO 2 transformation was successfully performed under mild conditions. It is hoped that this review can arouse broad concern on CO 2 transformation and spur its further development.

Research Progress on Triphase Interface Electrocatalytic Carbon Dioxide Reduction

“…另外碳纤维衬底层的防浸湿水平也对电极性能有 一定的影响, Kim 等 [44] [46] . 此外, 电解质作为电催 化反应的大环境, 通过调节其组成成分(阳离子、阴离 子、浓度) [47][48][49][50] 和供应方式可以大幅改变反应活性, 是该 领域的重要研究分支, 同时也是未来大规模应用需要重 点考虑并解决的问题之一 [51] .…”

Novel hydroxyl-functionalized ionic liquids as efficient catalysts for the conversion of CO2 into cyclic carbonates under metal/halogen/cocatalyst/solvent-free conditions

“…Meanwhile, it is non-toxic, abundant and economical, and is the by-product of many industrial processes, including combustion. [1][2][3] People are committed to the study of carbon dioxide utilization. [4][5][6][7] One of the most effective methods is to convert carbon dioxide and epoxides into the corresponding cyclic carbonates, because this reaction can not only achieve 100% atom utilization but also the resulting cyclic carbonates can be used as important chemical intermediates to synthesize specialty fine chemicals.…”

Homogeneous and Heterogeneous Ionic Liquid System: Promising “Ideal Catalysts” for the Fixation of CO2 into Cyclic Carbonates

“…[20] To overcome the issue, a large number of catalysts and activating strategies have been developed to promote the CO 2 cycloaddition reaction. [21] By the phase state of the catalytic system, the catalysts can be divided into two categories: homogeneous catalyst and heterogeneous catalyst. Homogeneous catalysts of CO 2 cycloaddition reaction have been studied extensively for their higher catalytic efficiency including metal halides, [22] metal complexes, [23][24][25] organic bases, [26] porphyrins [27] and ionic liquids (ILs).…”