Real-time tracking the state of catalyst is essential for understanding catalytic mechanism, which usually involves complex structure and phase evolution. However, due to the lack of in-situ techniques with high time resolution, it is still a big challenge to follow the fast change of catalyst in a strong chemical reaction. Herein through transmission electron microscopy (TEM) equipped with high-speed camera and gas cell system, we developed an in-situ electron diffraction method, which could effectively obtain the structural information at ambient pressure with millisecond time resolution. As an example, the millisecond oxidation kinetics of nickel nanoparticles in oxygen was obtained by this method. The developed approach in this study can be readily applied to monitor the catalyst in other severe reactions.<br/>

<i>In-situ</i> electron diffraction tracking fast oxidation of nickel nanoparticles at ambient pressure

256th National Meeting (2018)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.

In-situ electron diffraction tracking fast oxidation of nickel nanoparticles at ambient pressure