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  • CO2 hydrogenation over func...
    Modak, Arindam; Ghosh, Anindya; Bhaumik, Asim; Chowdhury, Biswajit

    Advances in colloid and interface science, April 2021, 2021-04-00, Volume: 290
    Journal Article

    CO2 is one of the major environmental pollutants and its mitigation is attracting huge attention over the years due to continuous increase in this greenhouse gas emission in the atmosphere. Being environmentally hazardous and plentiful presence in nature, CO2 utilization as C1 resource into fuels and feedstock is very demanding from the green chemistry perspectives. To accomplish this CO2 utilization issue, functional organic materials like porous organic polymers (POPs), covalent organic frameworks (COFs) as well as organic-inorganic hybrid materials like metal-organic frameworks (MOFs), having characteristics of large surface area, high thermal stability and tunability in the porous nanostructures play significant role in designing the suitable catalyst for the CO2 hydrogenation reactions. Although CO2 hydrogenation is a widely studied and emerging area of research, till date review exclusively focused on designing POPs, COFs and MOFs bearing reactive functional groups is very limited. A thorough literature review on this matter will enrich our knowledge over the CO2 hydrogenation processes and the catalytic sites responsible for carrying out these chemical transformations. We emphasize recent state-of-the art developments in POPs/COFs/MOFs having unique functionalities and topologies in stabilizing metallic NPs and molecular complexes for the CO2 reduction reactions. The major differences between MOFs and porous organics are critically summarized in the outlook section with the aim of the future benefit in mitigating CO2 emission from ambient air. We highlighted recent state-of-the art catalyst developments in POPs/COFs/MOFs for chemical hydrogenation of CO2 and their potential future benefits in mitigating CO2 emission from ambient air. Display omitted •CO2 hydrogenation over functional porous materials as catalytic supports•Catalytic conversion of CO2 to mostly HCOOH over metal containing porous organic polymers•MOFs are used as heterogeneous catalyst for the synthesis of methanol, methane and lower olefins and formic acid from CO2.•Critical needs in the design of MOFs/COFs/POPs for CO2 hydrogenation reaction are highlighted.