报 告 题 目：Contaminants and Poisoning in Solid Oxide Fuel Cell Cathodes– Chromium, Boron and Sulphur

固体氧化物燃料电池中阴极的毒化—铬，錋和硫

报告人：蒋三平教授

时 间：2015年11月6日（周五）上午10点

地 点：材料楼404会议室

邀请单位：必赢766net手机版

摘要：

Long-term performance stability and durability is the most critical issue in the development of commercially viable high temperature solid oxide fuel cell (SOFC) technologies. One of the main factors which influence the durability of SOFCs is the degradation and poisoning of electrochemical activities of cathodes by the contaminants such as volatile chromium from metallic interconnect, boron species due to the use of glass sealants and sulphur species in air streams. In this talk, the deposition and poisoning effect of volatile chromium, boron and sulphur species on the cathode materials will be briefly reviewed and the most recent results on the fundamental relationship between the surface diffusion, segregation, polarization  and deposition and poisoning of the contaminants will be presented on the most common cathodes such as La_0.6Sr_0.4Co_0.2Fe_0.8O_3-d (LSCF) and La_0.8Sr_0.2MnO₃ (LSM). An important aspect in the study of durability of SOFCs is the development of specific methodologies for the targeted and accelerated tests. The fundamental understanding of the deposition and poisoning mechanism has significant implications to the design of more advanced SOFC stacks. In addition, the challenges and opportunities in the development of contaminant tolerant cathode materials are discussed.

 

附 蒋三平教授简历

蒋三平教授，1981年毕业于华南理工大学材料科学与工程专业，于1987年获伦敦城市大学电化学专业博士学位。1988-1991年在英国艾塞克斯大学做博士后研究。1991-2001年为澳大利亚英联邦科技工业研究中心高级研究员，作为负责人与核心研究人员，负责固体氧化物燃料电池、质子交换膜燃料电池等以及相关电极材料的研究。2001年为南洋理工大学机械与航空学院副教授，燃料电池研究中心付主任。2010年为澳大利亚科廷大学化学工程系教授，科廷大学燃料与能源技术研究院副院长。

蒋三平教授为国际知名的燃料电池科学家，已在高水平学术期刊上发表了近305篇文章，文章总被引用率10,500次，h-因子58。另有多部知名出版社(Springer-Verlag, Taylor and Francis Group)特邀专著与编写章节。并在国际会议多次做邀请报告。他的主要研究方向为固体氧化物燃料电池阴极的活化机理以及动力；固体氧化物燃料电池阴极的毒化机理；固体氧化物高温电解机理；阴极反应机理；镍基阳极及H2氧化反应机理；纳米结构电极、电极/电解质界面现象、自组装多层高聚物电解质膜直接甲醇燃料电池等。