中文版
Events

New Advancement in the Design and Preparation of High Performance Catalysts and Electrocatalysts

Release time:June 13, 2017 / Siying He

Topic:New Advancement in the Design and Preparation of High Performance Catalysts and Electrocatalysts

Date:June 15 10:00

Venue:N0.4 Building, Conference Room 205

Speaker:Prof. Hong Yang

 

Abstract:High-performance catalysts for applications in fuel cell, battery, electrolyzer for water splitting, CO2 utilization and ammonia synthesis require careful design of nanostructures and surfaces that form through either direct production or post synthesis processing. The conventional impregnation method often does not have the level of control to meet various requirements, such as catalytic surface with controlled single atom position or sub-monolayer atoms. Approaches are being developed to address synthetic challenges in nanocrystal size, facet, composition and fine structures (e.g., site specific bimetallic catalysts). I will present our latest understandings on the design and post-synthesis treatment of several classes of metal alloy- catalysts. The focus of this presentation will be on a) ligand chemistry in the design and controlled synthesis of metal catalysts, b) in situ liquid transmission electron microscopy (LTEM) in the understanding of nucleation and growth of heterogeneous bimetallic nanoparticle catalysts, c) in-situ variable temperature environmental TEM (ETEM) study of structural dynamics of oxygen reduction reaction (ORR) catalysts, d) structure-property relationship and e) density functional theory (DFT) calculation in understanding the observed new phenomena.

 

Bio of the Speaker: 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), and did his postdoctoral training at Harvard University. He joined the faculty of UIUC in 2012 after working at the University of Rochester for ten years. Dr. Yang received an NSERC Canada Doctoral Prize for his PhD thesis work, was an NSERC Postdoctoral Fellow, a US National Science Foundation CAREER Award winner and is an elected AAAS Fellow. He currently is a Section Editor on nanotechnology for Current Opinion in Chemical Engineering (Elsevier) and serves on the Editorial Boards of Nano Today (Elsevier), ChemNanoMat(VCH-Wiley), Science China Materials (CAS) and Frontiers in Energy (CAE) and a few other journals. His research interests include understanding the formation of nanocrystals, catalysis and electrocatalysis, in-situ techniques including the dynamics of structures under catalyst synthesis and operando conditions, nanomaterials for energy and biological applications.

 

School of Materials Science and Engineering