Topic：Diamond Electrochemistry 

Speaker：Prof. Nianjun Yang (Department of Chemistry & IMO-IMOMEC, Hasselt University, Belgium) 

Time：14：00-16：00, (Tues.) Nov. 28, 2023

Venue：Room 468，Lee Hsun Building, IMR CAS

Abstract： 

Conductive diamond is one of the most promising electrode materials, stemming from its wide potential window, high stability in different solutions and under harsh conditions, tuneable surface terminations, rich surface chemistry, and the possibility to form composites with other materials. Therefore, conductive diamond and their composites have been extensively employed in different electrochemical fields such as chemical/biochemical sensing, environmental degradation, energy storage and conversion.  

In this presentation, the progress and achievements of conductive diamond and its composites that have been obtained in our group will be shared. This talk will start from the properties of conductive diamond and its composites, followed by the experimental details of their synthesis by means of chemical vapor deposition techniques. After briefly showing the characterization results of these diamond materials, their applications in the fields biosensing (e.g., direct electrochemistry of protein, DNA biosensing), electrochemical energy storage (e.g., supercapacitors featuring both high power- and energy- densities), and electrochemical energy conversion (e.g., electrocatalysis and the construction of flexible zinc-air batteries) will be highlighted. The future research directions of diamond electrochemistry will be also discussed and outlined. 

Biography：

Dr. Nianjun Yang has been a Professor of Electrochemistry and Catalysis at the Department of Chemistry and Institute of Materials Research (IMO-IMOEC) of Hasselt University (Belgium) since March 2023. His Habilitation in the fields of Materials Science and Surface Engineering was finished in 2020 at the Institute of Materials Engineering of the University of Siegen (Germany). He was a team leader and a senior researcher at the University of Siegen and Fraunhofer Institute of Applied Solid State Physics (Freiburg, Germany) after his three-year postdoctoral working experience at the National Institute of Advanced Industrial Science and Technology (Tsukuba, Japan) and the New Mexico State University (Las Cruces, NM, USA). His PhD degree was obtained from the National University of Fukui (Fukui Japan) in 2005. His research interest covers the design, synthesis, and electrochemical applications of various functional materials. He has acted/is acting as guest editor and advisory board member of several journals, editor of book series and books, as well as the organizer and board member of several international conferences.