Metal catalyst for CO2 capture and conversion into cyclic carbonate: Progress and challenges

Ionic Liquid-Functionalized Metal–Organic Frameworks/Covalent–Organic Frameworks for CO2 Capture and Conversion

“…Owing to the unsaturated metal sites in MOFs and versatile ILs, the IL-MOFs composites exhibit promising applications in catalyzing the coupling reaction of CO 2 with epoxides. Malik and coworkers reviewed the metal catalyst for CO 2 capture and conversion into cyclic carbonate including MOFs and ZIFs, 6 and Keskin et al discussed the syntheses and application of ILbased porous materials in heterogeneous catalysis. 47 In such outstanding reviews, some inspiring work about the cycloaddition of epoxide and CO 2 are summarized and discussed.…”

“…1−5 As a result, there might be a 1.9 °C increase in the mean global temperature by the year 2100. 6 More critically, the real situation would be even worse due to the continual heavy dependence upon fossil fuels in energy structure. Thus, the development of an effective and feasible way to mitigate the dilemma caused by the greenhouse effect is highly desirable.…”

Guanidinium iodide salts as single component catalysts for CO2 to epoxide fixation

“…The chemical conversion of carbon dioxide (CO 2 ) by its fixation into high-value-added products has been one of the principal focuses and challenges for the scientific community to contribute to the decrease in CO 2 emissions in the atmosphere. 1–4 Related to this, the attention to the catalytic transformation of this molecule has increased enormously in recent years 5–8 for the preparation of a great variety of different products, such as methanol, 9,10 carbamates, 11–13 formic acid, 14,15 and amines. 16 It is important to note that according to a recent study, only 0.36% of CO 2 emissions were employed as feedstock for the industrial preparation of value-added chemicals.…”

A Zn-Based Coordination Polymer with Homogeneous Catalyst Properties for Efficient CO2 Fixation

“…CO 2 , as a greenhouse gas, is emitted into the atmosphere and will lead to a series of environmental problems such as greenhouse effect, glacier melting, and sea level rise . The atmospheric CO 2 concentration is reported to have risen from 280 ppm during the preindustrial revolution to 417 ppm in August 2022 . On the other hand, CO 2 is a cheap, readily available C1 resource, and converting CO 2 into value-added chemicals is a green and sustainable pathway. , The design and synthesis of highly active catalysts for CO 2 conversion have made great progress in recent years. − The cycloaddition of CO 2 with epoxides is one of the emerging pathways for CO 2 utilization because of its 100% atom economy and product cyclic carbonate’s versatility such as polar aprotic solvents, electrolytes, and polymer monomers. ,, However, the inherent inertness of CO 2 and the catalytic activity of catalysts have become barriers for CO 2 utilization pathways.…”