Adsorbed Gas Behaviour and Guest-Host Interactions in Ultramicroporous Metal-Organic Frameworks

Author

Bligh Desveaux, The University of Western OntarioFollow

Degree

Master of Science

Program

Chemistry

Supervisor

Huang, Yining

Abstract

Metal-organic frameworks (MOFs) are a class of porous materials that have attracted much attention due to their large surface areas, high tunability and their high selectivity for gas adsorption applications. In this work, solid-state nuclear magnetic resonance (SSNMR) experiments and single crystal X-ray diffraction (SCXRD) experiments are used to investigate carbon dioxide adsorption within the ultramicroporous MOFs SIFSIX-3-Zn (Chapter 2) and ZnAtzOx. (Chapter 3). Analysis finds that the CO₂ SIFSIX-3-Zn undergoes wobbling motions with a low temperature dependence, and in ZnAtzOx undergoes wobbling and hopping motions with a low temperature dependence. SCXRD is used to precisely determine the CO₂ adsorption site in SIFSIX-3-Zn, centered within the pore. Chapter 4 discusses the use of SSNMR to study the effects of water adsorption within these MOFs, with preliminary results suggesting water is strongly adsorbed in both frameworks with a low degree of temperature dependence.

Recommended Citation

Desveaux, Bligh, "Adsorbed Gas Behaviour and Guest-Host Interactions in Ultramicroporous Metal-Organic Frameworks" (2017). Electronic Thesis and Dissertation Repository. 5125.
https://ir.lib.uwo.ca/etd/5125