| AVS 66th International Symposium & Exhibition | |
| Energy Transition Focus Topic | Tuesday Sessions |
| Session TL+AS+SS+TF-TuA |
| Session: | Breakthroughs and Challenges in Applied Materials for Energy Transition (ALL INVITED SESSION) & Panel Discussion |
| Presenter: | Seiji Takeda, Osaka University, Japan |
| Authors: | S. Takeda, Osaka University, Japan N. Kamiuchi, Osaka University, Japan R. Aso, Osaka University, Japan H. Yoshida, Osaka University, Japan T. Tamaoka, Osaka University, Japan |
| Correspondent: | Click to Email |
The surface of noble metals in gas has been extensively studied in the field of surface science. The surface has been investigated in both ultra high vacuum and various gases of high pressure and under various stimuli, for instance the illumination of intense light, the electric and/or magnetic field and the irradiation of charged particles. A microscopy study is potentially useful to provide us with the imaging data on the surface in real space and time at the resolution that is available in a microscopy apparatus to use. Among various methodologies for microscopy, atomic resolution environmental transmission electron microscopy has advanced greatly in the time resolution recently, allowing us to explore the dynamic surface and to elucidate the mechanism of the dynamic phenomena that are related to various energy transition processes. We show recent our studies, including the self-activated surface dynamics of gold catalysts in reaction environments [1] and the unexpected gas (nitrogen) -solid (palladium) transition [2] that is occurring on the surface under a strong electrostatic field. We demonstrate that the surface dynamics that is associated with the energy transition processes needs to be visualized at atomic scale for understanding the electronic excitations behind the surface dynamics.
References
[1] N. Kamiuchi et al., Nat. Commun. 9 (2018) 2060.
[2] T. Tamaoka, R. Aso et al., Nanoscale (2019) .