Carbon Dioxide Capture in Metal-Organic Frameworks

A comprehensive overview of the considerations associated with CO 2 capture from power plants using metal-organic frameworks (MOF) is presented. In a study, activated carbons and zeolite 13X were loaded with MEA and TEA by solution processing. It was found that both materials exhibited selectivity for CO 2 over CH 4 and N 2, although the CO 2 capacity was decreased compared with the bare material owing to the lower surface area accessible to the gas molecules following installation of the amines. In X-ray (or neutron) diffraction, an activated single-crystal or powder sample of a metal-organic framework is inserted into a cell, such as a glass capillary, which is subsequently evacuated and dosed with a known quantity of high-purity CO 2 gas. In the generation of structure types bearing exposed metal cation sites on the pore surface, sites are obtained following desolvation of the material.