12月27日 香港理工大学黄维扬教授学术报告：Recent Advances of 2D Metal-Complex Nanosheets

报告题目：Recent Advances of 2D Metal-Complex Nanosheets

报告人：   黄维扬教授

报告时间：12月27日（星期三）上午10:00

报告地点：唐仲英楼B501

报告人简介：现为香港理工大学理学院院长、应用生物及化学科技学系讲座教授和欧雪明能源教授。1992年获香港大学化学专业一级荣誉学士学位；1995年获香港大学博士学位；1996至1997分别于美国德州农工大学和英国剑桥大学从事博士后研究。现为香港化学会主席。长期担任多种国际期刊的编委和国际编委顾问成员：曾任Journal of Materials Chemistry C副主编（2013-2022），现任Topics in Current Chemistry主编，Energy Advances 副主编和Journal of Organometallic Chemistry编辑。长期专注于无机化学中金属有机聚合物/配合物的设计、合成及其光电应用等领域的基础与应用研究。

报告摘要：Nanosheet materials have attracted significant attention because of their unique electronic and physical properties, which derive from their two-dimensional (2D) nature. Graphene and other 2D inorganic sheet assemblies of metal chalcogenides are prominent nanosheet materials which are widely exploited in electronics, photonics, and spintronics technologies, because 2D materials possess close affinity with those used in the silicon-based electronics. Most of these nanosheets have been synthesized via exfoliation of bulk layered materials, which is a top-down method. In contrast, “bottom-up” nanosheets are generally synthesized directly from organic compounds, ligands, and/or metal ion connectors, and their composition, structure, and properties can be tuned at will by tailoring the constituent components used. This is a strong point of using bottom-up nanosheet against the top-down congener. However, application studies of the bottom-up 2D metal-complex nanosheets are still very rare. In this lecture, the bottom-up synthesis of some functional 2D metal complex nanosheets from molecular precursors will be presented which can be monometallic or bimetallic in nature. Both single-layer and multilayer 2D nanosheets will be developed depending on the fabrication method (i.e. gas-liquid or liquid-liquid interfacial synthesis). The ligand structure can be easily altered in terms of the spacer group and the number of arms. The metal complexes can be modified to show significant π-conjugation and intense absorptions in the visible and near-infrared region, which will be useful for the construction of photoresponsive and semiconductive nanosheets. The resulting nanosheets are shown to find wide applications in optoelectronics and catalysis.