Abstract: Knowing the 3D arrangement of atoms in a material is essential for understanding the properties and predicting the applications of the material. Transmission electron microscopy (TEM) has been widely used for studying nanostructured materials. A major drawback is that each TEM image or electron diffraction pattern contains only 2D information (projection) of the material. My group has been working on deveoping methods for collection and processing of 3D electron diffraction (3DED) data and 3D reconstruction from high resolution electron microscopic images. In this talk, I will present different imaging and diffraction methods for 3D structure determination. I will show the methods can be used for structure elucidation of various porous materials including zeolites and metal-organic frameworks that are important for catalysts, drug delivery and energy applications. I will demonstrate our latest development of electron diffraction techniques towards automated data collection, in order to make high throughout phase analysis and structure determination.
Biography of Xiaodong Zou
Xiaodong Zou is a full professor and deputy head of the Department of Materials and Environmental Chemistry, Stockholm University. She received her B.Sc. in Physics at Peking University in 1984, and Ph.D. in structural chemistry at Stockholm University in 1995. She joined the faculty at Stockholm University in 1996 and became professor 2005. Her research interests have been developments of electron crystallographic methods and design of novel porous materials. Her group has developed several image and diffraction-based methods and software for accurate atomic structure determination of unknown crystals, and solved many complex structures including zeolites, metal-organic frameworks, organic compounds and proteins. She has received several prestigious awards given by the Royal Swedish Academy of Sciences. She is an elected member of the Royal Swedish Academy of Sciences (KVA), member of the Royal Swedish Academy of Engineering Sciences (IVA), Fellow of the Royal Chemical Society (FRCS) and council member of the International Zeolite Association.