|제목||Evolution of Form in Metal-Organic Frameworks|
제 목 : Evolution of Form in Metal-Organic Frameworks
연 사 : 최원영 교수님(UNIST)
일 시 : 2017년 6월 1일(목) 오후 4시 30분
Evolution of Form in Metal-Organic Frameworks
Department of Chemistry
Ulsan National Institute of Science and Technology
Self-assembly has proven to be a widely successful synthetic strategy for functional materials, especially for Metal-Organic Materials (MOMs), an emerging class of porous materials consisting of Metal-Organic Frameworks (MOFs) and Metal-Organic Polyhedra (MOPs). However, there are areas in MOM synthesis in which such self-assembly has not been fully utilized, such as controlling the interior of MOM crystals. Here, we demonstrate sequential self-assembly strategy for synthesizing various forms of MOM crystals, including double-shell hollow MOMs, based on single-crystal to single-crystal transformation from MOP to MOF. Moreover, this synthetic strategy also yields other forms, such as solid, core-shell, double and triple matryoshka, and single-shell hollow MOMs, thereby exhibiting form evolution in MOMs. We anticipate that this synthetic approach might open up a new direction for the development of diverse forms in MOMs, with highly advanced areas such as sequential drug delivery/release and heterogeneous cascade catalysis targeted in the foreseeable future.