(488e) A Novel Mesoporous Silica – Metal Organic Composite for Light Gas Removal and Storage
AIChE Annual Meeting
2011 Annual Meeting
Wednesday, October 19, 2011 - 1:50pm to 2:10pm
This work reports the synthesis and characterization of a novel mesoporous silica-metal organic composite that shows potential for light gas removal and storage. The novel composite is composed of an inorganic silica phase impregnated with a metal organic phase. Specifically, MCM-41 is impregnated with copper active sites, which are then functionalized with benzene-1,3,5-tricarboxylic acid, which is the linker in the metal organic framework CuBTC. X-ray diffraction, nitrogen adsorption isotherms, thermogravimetric analysis, scanning electron microscopy, X-ray photoelectron spectroscopy, and equilibrium ammonia capacities are used to characterize the composite. High pressure carbon dioxide isotherms have also been measured. The composite material has a high ammonia capacity of 5.2 mol/kg and remains stable after conditioning. It also exhibits high capacity for carbon dioxide, leading to potential applications for carbon capture.