(495a) Measurement and Modelling of Dynamic Adsorption Behavior of VOCs IN METAL-ORGANIC Framework (MOF) Packed Beds

Metal-Organic Frameworks (MOFs) represent a relatively new class of crystalline microporous materials possessing very high specific surface area [1, 2]. By changing the metallic centers or the organic linkers used in the synthesis of MOFs, it is possible to intelligently design a material with certain dimensions, pore sizes, and chemical functionality [3]. This is perhaps the most interesting and promising properties of MOFs.

Because of these unique material properties, MOFs have become a very important class of new materials being investigated for application in separations [4], molecular storage [5, 6], heterogeneous catalysis [3], and the capture of toxic chemicals [7]. Although the study of MOFs for the high-density storage of gas is a widely explored topic, the dynamic adsorption behavior of organic compounds into a packed bed of MOF is a relatively unexplored field. For most of the applications of interest, a much better understanding of the dynamic behavior of the materials is needed.

The work presented here involves experimental measurements of the adsorption of organic vapors into microwave-synthesized MOFs [8] in combination with the development of models to describe the behavior. This is done in an attempt to improve fundamental understanding of the observed adsorption phenomenon as well as to identify and design materials with interesting and desirable properties. The design and testing of MOFs with improved water-stability will also be addressed.

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7. Britt, D., D. Tranchemontagne, and O.M. Yaghi, Proceedings of the National Academy of Sciences of the United States of America, 2008. 105(33): p. 11623-11627.

8. Ni, Z. and R.I. Masel, Journal of the American Chemical Society, 2006. 128(38): p. 12394-12395.