研究・研究者
研究会・セミナー
| 演 題 | 「Atomic-Scale Observations of Catalyst Structures with STM under Reaction Conditions and during Catalysis」 |
|---|---|
| 日 時 | 2018年07月17日(火) 16:00 |
| 講演者 | Prof. Franklin (Feng) Tao [The University of Kansas］ |
| 場 所 | 分子科学研究所 研究棟201号室 |
| 概 要 |
Heterogeneous catalysis is a chemical process performed at a solid−gas or solid−liquid interface. Direct participation of catalyst atoms in this chemical process determines the significance of the surface structure of a catalyst in a fundamental understanding of such a chemical process at a molecular level. High-pressure (or called ambient pressure) scanning tunneling microscopy (HP-STM) has been used to observe catalyst structure in the last few decades. I will present instrumentation of high pressure (or called ambient pressure) STM for in situ/operando of model catalyst surfaces and scientific findings on catalyst structures under reaction conditions and during catalysis with the following objectives: (1) to present the fundamental aspects of in situ/operando studies of catalysts; (2) to interpret the observed restructurings of catalyst and evolution of catalyst structures; (3) to explore how HP-STM could reveal structural details under reaction conditions and during catalysis; and (4) to discuss the future challenges and prospects of atomic-scale observation of catalysts in understanding of heterogeneous catalysis. |
| お問合せ先 |
所内対応者：横山 利彦（電子構造） |
