The Chemistry of Metal Organic Frameworks Captured by Liquid and Gas Phase in Situ TEM
Abstract
he objective of this effort is to investigate metal-organic framework assembly, degradation, and adsorption of small molecules under electron beam irradiation using in situ transmissiorn electron microscopy. The proposed effort will investigate the utility of in situ transmission electron microscopy (IS-TEM) to study metal-organic framework (MOF) processes including assembly, degradation, and adsorption. MOF formation and post-synthetic modification will be studied using in situ gas and liquid phase TEM. A MOF sample Ui0-66(Zr), will be oucJeated and grown in the TEM cell followed by post-synthetic modification and post-synthetic exchange reactions. Post-synthetic modifications that wiJJ be studied include: introduction of pendant alkyl-groups and acidic groups using anhydrides; and introduction of pendant aryl and basic groups using click reaction. Ligand exchange will be studied with a variety of dicarboxylates as well as complexes dicarboxylic acids. 1n situ liquid and gas phase TEM will be used to study OMOF uptake of various guest molecules including ammonia, isopropanol, and benzene. Experimental data will be used to develop models capable of predkting both adsorption and diffusion processes in MOFs.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1510189
Entities
People
- Seth M Cohen
Organizations
- Army Contracting Command
- United States Army
- University of California, San Diego