南强学术讲座(第1074期)
报告题目:Isolated Single Atom Site Catalysis
报告时间:2021-04-07 14:00
报 告 人:李亚栋 院士
清华大学
报告地点:化学报告厅
摘要:
Keywords: Nanocrystals; Clusters; Isolated Single Atomic Catalysis(ISAC) Metallic nanocrystals, clusters, and isolated single atom sites(ISAS) are important catalysts that have been widely used in both heterogeneous and homogeneous catalysis. It is of great significance to understand the essence and laws of catalysis for the frontier of chemistry and chemical engineering. More and more attention has been paid to the correlation of catalyst structure and catalytic properties. To date, researchers have uncovered many important factors governing the catalytic performance of nano, cluster, and single atom catalysts, including composition, shape, size, surface/interface effects and so on. However, challenges remain in the following aspects: intrinsically what the active site or center of the catalyst is in heterogeneous catalysis; which is the key factor determining the catalytic performance: composition, structure (shape), size, interaction between catalyst and support, or surface/interface effects; whether or not the latest achievements of nanotechnology could be applied to the fundamental and applied research of catalysis, so as to improve the activity, selectivity and stability of the catalyst, and if so, how to manage; whether enzyme catalysts could be manufactured with high activity and specific selectivity in ambient conditions as enzyme in nature. Herein, we made some explorative attempts and achieved valuable results in combination with several catalysis in chemical engineering.
报告人简介:
李亚栋,中科院院士、清华大学教授。1986年毕业于安徽师范大学化学系,1991年、1998年先后获硕士、博士学位,现为清华大学化学系教授。曾先后于2001年、2008年获国家自然科学奖二等奖。2011年当选为中国科学院院士,2014年当选发展中国家科学院院士。目前担任学术期刊:Nano Research、Science China Materials主编。主要从事无机纳米材料合成化学研究,目前致力于挑战金属团簇、单原子催化剂以期实现非贵金属替代贵金属催化剂、探索实现催化新反应,解决催化剂均相催化异项化实验室与工业化技术难题。在国际学术期刊包括Science,Nature(及其子刊),JACS,Angew Chem,PRL,Adv Mater.,Nano Letters等发表学术论文300余篇,被他引超40000次(H-index 超100)。已先后培养博士生、博士后高级研究人员30余名,1人获国际“IUPAC青年化学家奖”(2005年),4人获得“全国优秀博士学位论文奖”(2人获提名),6人已获得“国家杰出青年科学基金”资助,8人获“优秀青年基金”、或国家高层次青年人才计划等人才称号。
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