演講快訊

2021
10.08

奈米孔洞材料MOF於綠色永續化工上的應用 Water-based Synthesis of Metal-Organic Frameworks (MOFs) for Green and Sustaina

吳嘉文 教授

時間:2021年10月08日 (五) 15:10 PM
主持人:龔仲偉 教授
講者:吳嘉文 教授
服務單位:台灣大學化學工程學系
講題:奈米孔洞材料MOF於綠色永續化工上的應用 Water-based Synthesis of Metal-Organic Frameworks (MOFs) for Green and Sustaina
地點:華立廳 & Webex線上同步(實體&線上同步進行)

摘要 :

Nanoporous materials can be classified into three categories according to their pore size: microporous (or metal-organic frameworks (MOFs) in this study) (< 2 nm), mesoporous (2 – 50 nm), and macroporous (> 50 nm). These nanoporous materials exhibit high surface areas, controllable morphology (nanoparticle and thin films), and tunable surface functionalities (amino group, thiol group, carboxylic group; therefore, they have been showing great potential in many chemical engineering fields. In this talk, I will focus on the water-based synthesis of microporous MOF materials for chemical engineering applications including membrane separation, biomass conversion, and capacitive deionization (CDI). For membrane separation, despite much progress in the development of mixed matrix membranes (MMMs) for many advanced applications, there is still a challenge to synthesize MMMs without particle agglomeration or phase separation at high loadings of nano-fillers. For biomass conversion, we have synthesized a new metal-free and nitrogen-containing nanoporous carbon with controllable amounts of nitrogen configuration through a simple pyrolysis of ZIF-8 nanoparticles. Unlike conventional nitrogen-doped carbon materials with low nitrogen-loading density, the ZIF-8 derived nanoporous nitrogen-doped carbon (NNC) enhances the loading amount of nitrogen, especially for the formation of graphitic nitrogen (N-Q) after calcination at 900C. For CDI application, we describe an approach to assemble hierarchically-ordered 3D arrangements of curved graphenic nanofragments for energy storage devices.

學經歷 :

Kevin C.-W. Wu did his Ph.D. on mesoporous materials with Professor Makoto Kuwabara at The University of Tokyo, Japan (2001-2005). After postdoctoral researches studying the applications of mesoporous silica nanoparticles and thin films, with Professor Kazuyuki Kuroda at Waseda University in Japan (2005-2006) and Professor Victor S.-Y. Lin at Iowa State University in USA (2006-2008), he returned to the Department of Chemical Engineering, National Taiwan University where he is now a full professor. His research interests are the structural design and tailoring of functional nanoporous materials for sustainable chemistry & engineering applications including biomass and plastic conversion, biomedicine and energy devices. He has received several awards recently, including the Humboldt Researcher in 2018, the ACS Sustainable Chemistry & Engineering Lectureship Award (Asia/Pacific region) in 2019, and the Outstanding Researcher Award (from Asia/Pacific Associations of Catalysis Societies) in 2019, and the Outstanding Research Award from Ministry of Science and Technology (MOST), Taiwan in 2018 and 2020, indicating his outstanding work in materials chemistry, catalysis chemistry and physical chemistry.