报告时间：11月3日（星期五） 上午9:30-11:00

报告地点：能源基础楼一楼会议室

报告人：张舒怡 博士 美国密歇根大学

　　报告摘要：

　　Most nanomaterials, especially those used as catalysts, usually work under gaseous or liquid environments at elevated pressure and temperature, and their structure and composition are likely to change under reactive environments. Such processes have profound influence on their property and stability. Thus, understanding the structures of catalysts under realistic conditions with atomic precision is crucial to design better materials for challenging transformations. In the past decade, most of the in-situ gas reaction results were acquired with a dedicated Environmental TEM (ETEM), where the pressure in the sample area is typically around 1% of one atmosphere. To achieve more realistic conditions, especially in terms of gas pressure, a MEMS-based closed cell technique has recently been developed and soon become the most promising technique for in-situ microscopy studies due to its superior performance under atmospheric pressure, relative low cost and flexibility. Dynamic change of a variety of material systems, including Strong Metal Support Interaction (SMSI) in Pd/TiO₂ and Rh/TiO₂, structural transformation of Pd@CeO₂ methane combustion catalyst and sintering mechanism of supported Pt/Al₂O₃ catalyst will be discussed.

　　报告人简介：

　　张舒怡博士毕业于美国密歇根大学材料科学与工程学院，师从国际著名电子显微学与材料科学专家潘晓晴教授。主要研究领域包括近常压下的原位电镜研究、超高分辨电子显微术以及电子能量损失谱学研究等，曾获第十六届国际催化大会青年科学家奖。相关学术成果发表在Nature Chemistry, Nature Communication, Nano Letters, Journal of Catalysis, ACS catalysis，Advanced Mateirals以及Chemistry of Materials等杂志上共计15篇，一作7篇（包括一篇共同一作）。

　　联系人：DNL2002 赵旭

　　联系电话：82469707