Enhanced Carbon Dioxide Capture from Diluted Streams with Functionalized Metal-Organic Frameworks.

ABSTRACT: Capturing carbon dioxide from diluted streams, such as flue gas originating from natural gas combustion, can be achieved using recyclable, humidity-resistant porous materials. Three such materials were synthesized by chemically modifying the pores of metal-organic frameworks (MOFs) with Lewis basic functional groups. These materials included aluminum 1,2,4,5-tetrakis(4-carboxylatophenyl) benzene (Al-TCPB) and two novel MOFs: Al-TCPB(OH), and Al-TCPB(NH₂), both isostructural to Al-TCPB, and chemically and thermally stable. Single-component adsorption isotherms revealed significantly increased CO₂ uptakes upon pore functionalization. Breakthrough experiments using a 4/96 CO₂/N₂ gas mixture humidified up to 75% RH at 25 °C showed that Al-TCPB(OH) di

SUBMITTER: Gladysiak A 

PROVIDER: S-EPMC11600194 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature