名师讲座
报告题目：Absolute Electrochemiluminescence Quantum Efficiencies of Au Nanoclusters and beyond
报告时间：2025-04-29 16:00
报告人： Prof. Zhifeng Ding
The University of Western Ontario (Western)
报告地点：卢嘉锡楼202报告厅
转播地点：翔安校区能源材料大楼3号楼会议室5、6，漳州校区生化主楼307教室
报告摘要：
Our lab at Western focuses on 4 research themes: scanning electrochemical microscopy of live cells, ionic liquids as novel electrolytes, electrochemiluminescence (ECL) and solar cells. Herein, we summarize our ECL research on Au nanoclusters Au18, Au25, Au21, Au25, Au38 and Ag ones PtAg28, PtAg30.
Correlation between nanocluster structures and their electrochemiluminescence (ECL) has been identified. We will show how crystal structures of Au and Ag nanoclusters determine their photoelectrochemical reactivity, revealed by means of ECL and photoluminescence spectroscopy. Photoelectrochemical reactivity as well as ECL mechanisms were elucidated based on electrochemistry, spooling photoluminescence, and spooling ECL spectroscopy. Three ECL enhancement origins in the nanocluster coreactant systems will be demonstrated: (i) effectively exposed reactive facets available to undergo electron transfer reactions; (ii) individual excited-state regeneration loops; (iii) cascade generations of various exited states. The determination of nanocluster absolute ECL quantum efficiencies will be demonstrated.
Beyond ECL, chemiluminescene and radioluminescence are under our development and investigation.
报告人简介：
Dr. Zhifeng Ding is a full professor of chemistry at The University of Western Ontario (Western), London city, Ontario province, Canada. He received his B.Sc. degree in chemistry with the highest honor at Southeast University (Nanjing, China), M.Sc. in coordination chemistry under the supervision of Prof. Xiaozeng You at Nanjing University (China) and earned his Ph.D. in physical and analytical electrochemistry in the Girault group at Swiss Federal Institute of Technology in Lausanne (EPFL). After 3 years’ postdoctoral research in Allen J. Bard’s Lab at The University of Texas at Austin, he moved to his present Canadian university, Western, as a faculty member.
His research focuses on scanning electrochemical microscopy, ionic liquids as novel electrolytes, electrochemiluminescence and solar cells. Recently, his group has utilized graphene quantum dots for LED applications. He has published more than 210 papers, more than 3 book chapters, and filed more than 5 US and Chinese patents. Since July 2024, he has been an associate editor for Canadian Journal of Chemistry. Dr. Ding has received several awards including most recently: Western Science Distinguished Research Professor 2014-2015; Western University Faculty Scholar 2015-2016; 2017 Canadian Society for Chemistry W.A.E. McBryde Medal for his significant achievement in analytical chemistry; 2017 and 2018 Western Vanguard Awards for filing patents in solar energy; 2018 Ertl award (International) for electrochemistry and electrocatalysis for his contributions to solar cell research; honorable speaker for the Bernard L. Feringna (2016 Nobel Laureate) Advance Chemistry Lecture Series at East China of Science and Technology (2018); 2023 Chemistry Research Award of Excellence at Western.
欢迎老师同学们积极参加!
化学化工学院
表界面化学全国重点实验室
