Title: Functional Nanoparticles and Electron Transfer Chemistry
Time: 9:00 am, Tuesday , October 18, 2011
Place: Room 205, Bldg 14, SCUT North Campus
Sponser: School of Materials Science and Engineering

Abstract:
In this presentation, we will discuss the impacts of metal-ligand interfacial bonding interactions on nanoparticle materials properties. Specifically, in contrast to nanoparticles passivated by mercapto derivatives where the metal-thiolate bonds lack interesting chemistry, metal-carbon covalent bonding interactions render it possible for intraparticle charge delocalization to occur between nanoparticle-bound functional moieties. This has been manifested by the intervalence charge transfer between the metal centers of ferrocenyl moieties attached onto Ru nanoparticle surface by Ru-C conjugated linkages at mixed valence. Similar behaviors have also been observed with fluorophores where the emission characteristics are analogous to those of their dimeric derivatives with a conjugated linker. The significance of such unique metal-ligand interactions in the applications of chemical sensing and fuel cell electrochemistry will also be discussed.

Brief introduction to Dr. Xiaozhou Liao      
Dr Chen shaowei, graduated from China University of science and technology in 1991, in 1996 he got his doctoral degree from Cornell University in the United States. Now he is a Professor of the University of California, Santa Cruz.
His research includes: electrochemical study of nano-materials, nano-materials of nano-particles of light-electric conversion, transmission and absorption and coupling, and so on.  Based on his research achievements ,he has been awarded electrochemical highest international honor, the international society of electrochemistry Tajima Prize.
In the past years, Dr Chen has published more than 97 papers on international journals such as Science， Angew. Chem. Int. Ed， J Am. Chem. Soc., Adv. Mater, and his articles are widely quoted.