Time：August 31, 2015 ( Monday ) 10:00am
Location：Conference Room of Basic Energy Science Building
Lecturer：Professor Hong Yang, Department of Chemical and Biomolecular Engineering, University of Illinois, USA
Biography：
Prof. Hong Yang is the Richard C. Alkire Professor of Chemical Engineering at the University of Illinois at Urbana-Champaign (UIUC). He received his B.Sc. degree from Tsinghua University (1989), M.Sc. degree from University of Victoria (1994), and Ph.D. degree from University of Toronto (1998). After working at Harvard University as an NSERC postdoctoral fellow, he started his independent research and rose through the academic ranks at University of Rochester before joining the faculty of UIUC in 2012. Dr. Yang received an NSERC Canada Doctoral Prize for his thesis work, and is an NSF CAREER Award recipient. He currently is a Section Editor for Current Opinion in Chemical Engineering (Elsevier) and serves on the Editorial Boards of Nano Today (Elsevier), ChemNanoMat (VCH), Science China Materials (CAS-Springer), and other journals. His research interests include understanding the formation of nanocrystals, solid state materials, surface modification, catalysis, and nanomaterials for energy and biological applications.
Abstract：
Preparation of nanoparticle catalysts becomes more and more sophisticated in order to meet the increasingly stringent structural requirements for advanced performance in high activity, selectivity and stability. New approaches have been developed in recent years in the control of nanocrystal size, facet, composition and various fine structures (such as, site specific bimetallics) in order to meet the challenges. Such research endeavors result in a new push for better quantitative understanding of nucleation and growth kinetics in solution. In this talk, I will focus on our recent effort in the following topical areas: 1) the solution processing of metal nanoparticles, especially the production of uniform, facet-defined catalysts using carbon monoxide as a processing gas. The formation of shape- and composition-controlled multimetallic nanostructures will be discussed, including alloys in their so-called immiscibility regime of their bulk counterparts; 2) theoretical and experimental understanding of ligand chemistry in the design and controlled synthesis of metal catalysts; 3) in situ flow cell technology for liquid transmission electron microscopy in the understanding of nucleation and growth of heterogeneous nanoparticle catalysts; 4) in-situ, variable temperature environmental TEM (ETEM) study of structural behaviors of catalysts under reactive conditions; and 5) structure-property relationship of catalysts for electrochemical reduction of oxygen and other reactions.
Contract：Group 1501，Caixia Sun（9161）