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CO2 Capture by Porous Polymeric Sorbents: From New cis-/trans-Oxovanadium(IV) Catalyst to Functional Materials

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide The challenge of ever-increasing greenhouse gas emissions correlates with intensive research into the development of new CO 2 sorbents. The research aimed to propose a new generation of porous polymer sorbents that contribute to decarbonization. Among all oligomers and (co)polymers, the 3-buten-2-ol oligomer showed the highest CO 2 sorption properties (0.82 mmol g –1 ). The heat of adsorption of CO 2 by oligo(3-buten-2-ol) was equal to 8.51 kJ mol –1 . Polyolefins and polar oligomers were synthesized using a new, innovative, and highly active oxovanadium(IV) precatalyst. An easy, one-step method for the synthesis of cis / trans -[VO(acac) 2 (3-ppy)] provides a unique coordination compound containing two molecules that are reciprocal geometric isomers with a spatial arrangement of acetylacetonate ligands ( cis and trans ). The complex shows very active catalytic properties in the polymerization reactions of olefins (83,400 kg PE mol V –1 h –1 ) and polar monomers, for example, 2-propen-1-ol (1060 kg mol V –1 h –1 ). A physicochemical study was also conducted to determine the stability constant of the complex formation, log β 1210 = 27.82.

Source: The Journal of Physical Chemistry B

DOI: 10.1021/acs.jpcb.5c01060