Analytical Application of Terahertz Spectroscopy for Gas Adsorption onto ZIF 8
发布人: 星禧   发布时间: 2018-10-24    浏览次数:


Nobuaki Ogawa教授,秋田大学副校长。1987-1995担任秋田大学教育系副教授;1988-1989年在美国亚利桑那大学从事博士后研究;1995-1998担任秋田大学教育系教授;1998-至今担任秋田大学工程与资源科学系教授;2014-至今担任秋田大学副校长。主要研究领域为气体探测传感器,并获得了一系列奖励,包括:International Award from the Society of Materials Engineering for Resources of Japan“Yamazaki” Prize from the Society of Materials Engineering for Resources of JapanPoster Competition Award from The 52nd & The 54th Annual conference of Japan Society for Analytical Chemistry


Zeolitic imidazole framework-8 (ZIF 8) is a promising metal-organic framework (MOF) for the storage, separation, and detection of gases at room temperature and atmospheric pressure. Intermolecular interactions between ZIF-8 and adsorbed gas molecules which perform an important role in the adsorption process, can be attributed to non-covalent bonds such as van der Waals forces. The resonance frequency of these bonds falls in the terahertz (THz) frequency band. Skeletal vibration of organic linkers also occurs in this band and seems to be affected by adsorption. Previous studies using DFT calculations suggest that the frequency of open-gate motion exists at the range of 1 to 2 THz. Thus, gas adsorption onto ZIF-8 can be observed by monitoring changes in its terahertz transmission spectrum as a function of gas exposure.