报告题目：Materials Degradation in Solid Oxide Cells-Interfaces and Grain Boundaries 
主讲人：蒋三平教授 
单位：Curtin University 
时间：2016/8/10 09:30 
地点：海西院2号楼235 

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报告摘要 

　　Materials degradation is one of the most technical challenges in the development of high performance and durable solid oxide cell (SOCs) technologies. In this seminar, I will critically review and update the latest development in the understanding of the materials degradation issues of components of SOCs with main emphasis on the oxygen bubble formation in the electrolyte, delamination of oxygen electrodes and degradation induced by contaminants. The combination of the Nano SIMS and high resolution EDS-STEM analysis indicates that there are significant amount of manganese, to a less extent, lanthanum in the grain boundaries of YSZ close to the LSM electrode most likely due to cation interdiffusion during the electrode sintering stage. The Mn/La rich grain boundaries could function as the electronic conducting path for the oxygen evolution reaction, causing the widening and coarsening of the grain boundaries and oxygen bubble formation. The fundamental reason for the fracturing and gas bubble formation within the grain boundaries of YSZ electrolytes near the oxygen electrode is discussed. Finally, the degradation due to the deposition and poisoning of contaminants such as Cr and B is discussed. 

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附简介 

　　Dr San Ping Jiang obtained his BEng from South China University of Technology and PhD from The City University, London. He is a full Professor at the Department of Chemical Engineering and Deputy Director of Fuels and Energy Technology Institute, Curtin University and Adjunct Professor of the University of Sunshine Coast, Australia. He also holds Guest Professorships of number of Chinese Universities including Central South University, Guangzhou University, Harbin Institute of Technology, Huazhong University of Science and Technology, Wuhan University of Technology, etc. Before joining Curtin University in 2010, Dr. Jiang worked at Essex University in UK, CSIRO Materials Science and Manufacturing Division, Ceramic Fuel Cells Ltd in Melbourne, Australia and Nanyang Technological University in Singapore. His research interests encompass solid oxide fuel cells, proton exchange membrane fuel cells, water splitting, super capacitors, solid oxide electrolysers, electrocatalysis and nano-structured functional materials. Professor Jiang has published ~320 journal papers, which have accrued over 12,000 citations and h-index of 60. He has authored and co-authored 12 book chapters, four books on fuel cells and delivered over 70 invited public seminars. Dr Jiang has been listed as one of the most cited researchers (MCR) in Energy Science and Engineering by ARWU/Elsevier in 2016.