Low-pressure ETEM Studies of Au assisted MgO Nanorod Growth

Electron Microscopy and Analysis Group Conference 2013

Duchstein, Linus D.L.^1 ; Damsgaard, Christian D.^1 ; Hansen, Thomas W.^1 ; Wagner, Jakob B.^1

Center for Electron Nanoscopy, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark^1

关键词: AU catalysts;    Au surfaces;    Electron-beam current;    Environmental transmission electron microscopy;    Gas atmosphere;    Gaseous environments;    Low pressures;    Nanorod growth;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/522/1/012010/pdf
DOI  :  10.1088/1742-6596/522/1/012010

来源: IOP

【 摘 要 】

Environmental transmission electron microscopy (ETEM) studies MgO nanorod growth from Au catalyst nanoparticles in a controlled gas atmosphere have been performed, in order to elucidate the mobility of Au surface atoms and the configuration of the Au/MgO interface. MgO nanorod growth is driven by the electron beam and found to be strongly dependent on the gaseous environment in the microscope and electron beam current density.