Research

Synthetic Coordination Chemistry for Solid-State Materials

1. Metal-Organic Frameworks from Carbon Dioxide

Carbon dioxide (CO₂) is an attractive renewable resource with a high natural abundance. However, the intrinsic inertness of CO₂ has hampered its conversion into functional materials. Metal-Organic Frameworks (MOFs) is porous organic-inorganic hybrid materials. We have discovered synthetic methods to convert CO₂ into highly porous MOFs at room temperature without the need for catalysts. The approach utilizes both metal ions and organic molecules, such as amines, enabling the facile conversion of CO₂ into MOFs. Our method is capable of converting diluted CO₂ in the air into MOFs. We are developing synthetic methods to enhance structural and functional diversity of CO₂-derived materials and exert control over the circulation of CO₂ through material design.

2. Tailoring Labile/Reactive Species in Metal-Organic Frameworks

Controlling labile/reactive species in solids offers unique structures and functionality to solid materials. Thermally and chemically robust inorganic lattice have traditionally served as the main platform to accommodate labile/reactive species. We have discovered synthetic strategies to incorporate labile/reactive ions and metal clusters, such as borohydride and iron-sulfur clusters, into MOF lattice. Tailoring the chemical environment of these species within the MOF lattice affords unique chemical reactivity and electronic properties, facilitating applications such as hydrogen storage and electronic conduction. We are investigating MOFs a designable platform for controlling various chemical species, with a focus of energy related applications.

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