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Extending the Structural Diversity of Metal-Organic Frameworks (MOFS)
Abstract
Metal-organic frameworks (MOFs) are one of the hottest research areas in recent years. Consisting of inorganic clusters and organic linkers, it has several advantages including high crystallinity, high surface area, and tunable pore environments. Bearing these advantages, MOFs can be tailored with great control to achieve different target applications. As a synthetic chemist, the primary goal of my graduate research concerns the development of MOFs and MOF nanosheets (MOF NSs) with high structural diversity to target different applications. I have explored several methodologies aiming to achieve my goal, and I would like to divide them into three sections: (1) In the first section, surface modifications were applied to MOF nanosheets; these modified MOF nanosheets have the potential for fluorescence energy transfer and were then used in efficient photocatalysis. 2) In the second section, the focus was modulator modifications, going from monotopic to ditopic and thus leading to highly anisotropically MOF nanocrystal growth. These MOF nanocrystals were then used as stationary phases for gas separations. 3) In the third section, ligand modification and functionalization were explored. Two series of ligands, and many new MOF structures along with one new topology were discovered.
By exploring different methodologies, we can have strong control in developing functional structures to fit desired applications. In summary, methodologies targeting increasing the structural diversity of MOFs and MOF nanosheets have been thoroughly studied from mainly four different aspects. Many of the developed structures show very high potential for different applications, including gas separation and catalysis. The findings in this dissertation will provide the design principles for future researchers to further increase the diversity of the MOF community.
Citation
Cai, Peiyu (2022). Extending the Structural Diversity of Metal-Organic Frameworks (MOFS). Doctoral dissertation, Texas A&M University. Available electronically from https : / /hdl .handle .net /1969 .1 /198554.