报告人 ：姚向东

地  点： 24#-415

时  间： 12月31日 14:30-16:00

报告人简介：

    姚向东，格里菲斯大学能源材料方向教授。1989年获东北大学工程学学士学位，1992年获西北工业大学工程学硕士学位，专业为材料科学与工程。1992～2000年间，历任中国科学院金属研究所副研究员（1992），助理教授（1995），副教授（1998）。2000，他来到昆士兰大学从事computational modeling for microstructure formation in light metals,并于2005年在此获得博士学位。他于2003年11月加入昆士兰大学ARC Centre of Excellence for Functional Nanomaterials.自2009年11月，他以副教授、高级能源材料组组长身份加入格里菲斯大学，并于2012年底晋升为教授。姚教授目前的研究方向主要集中在能源材料，特别是与氢相关的材料。

                                                                 Defect Electrocatalysis

Electrocatalysis is the key for energy conversion and storage devices such as fuel cells, metal-air batteries and water splitting. The development of highly efficient and non-precious metal catalyst is extremely important. Recently, we presented a new concept of defect electrocatalysis, in which the topological defects on carbons or in oxides/compounds are the active sites for electrochemical reactions. A series of non-metal catalysts have been developed based on this new theory. Besides, the defects are such characterized points with higher energy, thus provides ideal sites to interact with non-/metal species in various sizes. The strong interactions may provide both high reactivity and stability. When the size of metal species reduces to atomic level, the general configurations are metal atoms trapped into defects according to the minimum energy theory. The coordination of the defect and atomic species plays the central role for electrocatalysis as the local electronic structures defined by this coordination determines the interaction of reactant and active sites.