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Catalysis over Metal Oxides: Shape and Composition Effects

来源:合肥微尺度物质科学国家实验室    浏览次数:0


报告题目   Catalysis over Metal Oxides: Shape and Composition Effects
报告人   Prof. WU Zili
报告人单位   Chemical Sciences Division and Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
报告时间   2018-07-17   10:00
报告地点   中国科学技术大学环境资源楼939会议室
主办单位   合肥微尺度物质科学国家研究中心、中国科学技术大学化学与材料科学学院
报告介绍

Abstract:
  Recent advances in nanomaterials synthesis make it possible to achieve nanocrystals with crystallographically defined surface facets, composition and high surface area, which can be considered as ideal model systems for catalytic studies under realistic conditions. In this work, I will showcase how we can make use of nanoshapes of binary oxide (ceria) and ternary oxide (SrTiO3 perovskite) as model systems to gain molecular level understanding of the shape and composition effects on both the redox and acid-base properties and catalysis over these oxides. Catalytic insights are made possibly by investigating the atomic structure of the surfaces of these oxides as well as the interfaces between the oxides and metal particles via both in situ spectroscopy and advanced electron microscopy. The work manifests the importance of understanding both the surface atomic structure and composition for catalysis over both single and mixed oxide catalysts.

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