Abstract
The conversion of carbon dioxide into valuable chemicals such as cyclic carbonates is an appealing topic for the scientific community due to the possibility of valorizing waste into an inexpensive, available, nontoxic, and renewable carbon feedstock. In this regard, last-generation heterogeneous catalysts are of great interest owing to their high catalytic activity, robustness, and easy recovery and recycling. In the present review, recent advances on CO2 cycloaddition to epoxide mediated by hybrid catalysts through organometallic or organo-catalytic species supported onto silica-, nanocarbon-, and metal–organic framework (MOF)-based heterogeneous materials, are highlighted and discussed.
Highlights
Carbon DioxideThe design of new technologies able to mitigate the environmental impact of CO2 is an issue of growing interest from both academic and industrial standpoints
More recently [55], we reported a series of hybrid materials based on silica-supported imidazolium-modified polyhedral oligomeric silsesquioxanes (POSS-Imi) as heterogeneous imidazolium-modified polyhedral oligomeric silsesquioxanes (POSS-Imi) as heterogeneous organoorgano-catalysts for the conversion of epoxides and CO2 into cyclic carbonates in solvent-free reaction catalysts for the conversion of epoxides and CO2 into cyclic carbonates in solvent-free reaction conditions
We surveyed the development of heterogeneous catalytic systems
Summary
The design of new technologies able to mitigate the environmental impact of CO2 is an issue of growing interest from both academic and industrial standpoints. Since the Industrial Revolution, the concentration of carbon dioxide in the atmosphere steadily increased, becoming an environmental issue to be addressed In this scenario, carbon dioxide capture, utilization, and storage emerged as tangible processes moving toward sustainable development [1]. Industrialized organic syntheses using CO2 as a one-carbon (C1) feedstock All these processes make CO2 a key pillar for the sustainable and resource-efficient production. 2 is present in its mostrepresented oxidized state, in athermodynamic low molecular reactivity To overcome this in problem, dioxide is mainly by resulting its elevated stability. In the last few decades, several catalytic systems able to work under under both homogeneous and heterogeneous conditions were developed in the perspective of greener chemical processes. Several reviews reviews on on the the onto production of cyclic carbonates are proposed for a detailed overview covering a broad scope of production of cyclic carbonates are proposed for a detailed overview covering a broad scope of catalytic catalyticworking systems under working under both homogeneous and heterogeneous systems both homogeneous and heterogeneous conditionsconditions [9,10,11,12,13,14,15,16]. [9,10,11,12,13,14,15,16]
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