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Composites à base de metal-organic frameworks pour la capture du CO2

Abstract : In order to face global warming, the capture of anthropogenic CO2 is of prime importance as renewable energies cannot yet satisfy our current energy needs. Several technologies are being studied, such as the use of solid sorbents. Among these, metal-organic frameworks (MOFs) offer interesting properties including their good affinity for CO2. In industrial processes, once CO2 has been captured, a regeneration of the material is needed to make the overall process economically viable. This regeneration step is usually achieved by heating the material, leading to CO2 desorption, however this is a high energy process. To minimize the energy required, the regeneration should be as fast as possible without hampering the sorbent’s properties. During this thesis, the main objective was to develop new MOF/graphene oxide microporous composites as efficient CO2 sorbents that can be easily regenerated under microwave irradiation. Microwave irradiation enables to reach the required desorption temperature much faster and limits the risk of degradation of the porous materials. Additionally, new core-shells of flexible MOFs have been synthesized for an optimized CO2 capture under wet conditions.
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Submitted on : Friday, November 13, 2020 - 11:22:08 AM
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  • HAL Id : tel-03003433, version 1


Mégane Muschi. Composites à base de metal-organic frameworks pour la capture du CO2. Matériaux. Université Paris sciences et lettres, 2019. Français. ⟨NNT : 2019PSLET063⟩. ⟨tel-03003433⟩



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