Presenter：Prof. Jinwoo Lee, Korea Advanced Institute of Science and Technology (KAIST)
Topic：Direct Access to Functional Porous Materials for Energy Conversion and Storage
Time：10：00 AM, Oct 22nd (Tuesday)
Location：910-308
Abstract:
Multifunctional and hierarchical porous materials have attracted much attention as host electrode materials for electrochemical energy conversion and storages. Our research group has developed powerful methods to control multiscale porous inorganic nanostructures via simple “one-pot method” by employing blends of block copolymers and homopolymers. The new approach allows access to a high degree of control over pore structure and size, particle shape, particle size and chemical composition including metal oxides, metal nitride and conductive carbon. Multiscale porous materials have been employed as a multifunctional sulfur host, integrating the advantages of multiscale porous architectures with high performance electrocatalytic property to achieve high-power and long-life lithium-sulfur batteries. A new and intuitive strategy for tuning and enhancing the kinetic activity of Fe-N4 sites was designed by controlling electro-withdrawing/donating properties of carbon plane. Fe-N4 integrated mesoporous materials showed a high catalytic performance comparable to that of Pt/C in anion exchange membrane (AEM) fuel cells.
Biography
Prof. JinwooLee received his BS, MS and PhD degrees in School of Chemical and Biological Engineering from Seoul National University in 1998, 2000 and 2003, respectively. Currently, he is the professor at Department of Chemicaland Biomolecular Engineering at KAIST and Department of Chemical Engineering at POSTECH. His research mainly focuses on the synthesis of new functional nanoporous materials for energy conversion and storage. Prof. Lee has published 190 papers in international journals including those in Nat. Mater., J. Am. Chem. Soc., Angew. Chem. Int. Ed., Adv. Mater., Energy Environ. Sci. and so on, and has received more than 16435 citations with a H-index of 65. He is the associate editor of Chemical Engineering Journal of Elsevier, and is the member of Young Korean Academy of Science and Technology.
Contact：Yanguang Li