Metal-organic and covalent organic frameworks (MOFs and COFs) as adsorbents for environmentally significant gases (H2, CO2, and CH4)

INOR 916

Hiroyasu Furukawa,, Hani M. El-Kaderi,, Kyo Sung Park, Joseph R. Hunt, José L. Mendoza-Cortés, Adrien P. Côté, and Omar M. Yaghi. Department of Chemistry and Biochemistry, Center for Reticular Chemistry at the California NanoSystems Institute, University of California Los Angeles, 607 Charles E. Young Drive, East, Los Angeles, CA 90095-1569
A series of metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) possessing various functionalities, pore structures, and surface areas were evaluated for sorption and storage properties of environmentally significant gases (H2, CO2, and CH4). It was concluded that the gas sorption behavior follows a general trend that materials with high surface area show enhanced gas uptake performance. For example, MOF-177 (SA = 5200 m2/g) captures 7.2 wt% of H2 at 77 K and 19 wt% of CH4 at 298 K. In addition, MOF-177 exhibits exceptionally high gravimetric CO2 uptake up to 120 wt% at 298 K. Similarly, the gas storage capacity for COFs seems to follow the same trend and it is determined by the apparent surface area. The architectural stability of both COFs and MOFs upon high pressure H2 and CH4 gas sorption measurements were manifested by isotherms which reach saturation without significant hysteresis.

Materials Chemistry
7:00 PM-10:00 PM, Tuesday, March 27, 2007 Hyatt Regency Chicago -- Riverside Center, Poster

Division of Inorganic Chemistry

The 233rd ACS National Meeting, Chicago, IL, March 25-29, 2007