Jakob Birkedal Wagner

Aberration corrected and monochromated environmental transmission electron microscopy: challenges and prospects for materials science

Abstract The latest generation of environmental transmission electron microscopes incorporates aberration correctors and monochromators, allowing studies of chemical reactions and growth processes with improved spatial resolution and spectral sensitivity. Here, we describe the performance of such an instrument using examples taken from studies of fuel cells and supported catalysts. We discuss the challenges involved in performing in situ gas reaction experiments quantitatively and reliably and we highlight the care required to understand the effect of the electron beam on dynamic experiments performed in the electron microscope.

The Titan Environmental Transmission Electron Microscope: Specifications, Considerations and First Results

characterization techniques has increased dramatically. In electron microscopy, this demand constitutes an intrinsic challenge as the electron source requires high vacuum to function. Nevertheless, in the 1970’s, transmission electron microscopes (TEMs) were first adapted for use with gases [1]. Such machines are known as

In situ light spectroscopy in the environmental transmission electron microscope (ETEM)

1. Center for Electron Nanoscopy, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark 2. Chemical Physics, Chalmers University of Technology, SE-41296 Goteborg, Sweden 3. Department of Microand Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark. 4. Center for Individual Nanoparticle Functionality, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.