Advances in atomic resolution in situ environmental transmission electron microscopy and 1Å aberration corrected in situ electron microscopy

  title={Advances in atomic resolution in situ environmental transmission electron microscopy and 1{\AA} aberration corrected in situ electron microscopy},
  author={Pratibha L. Gai and Edward D. Boyes},
  journal={Microscopy Research and Technique},
  • P. GaiE. Boyes
  • Published 1 March 2009
  • Physics
  • Microscopy Research and Technique
Advances in atomic resolution in situ environmental transmission electron microscopy for direct probing of gas‐solid reactions, including at very high temperatures (∼2000°C) are described. In addition, recent developments of dynamic real time in situ studies at the Angstrom level using a hot stage in an aberration corrected environment are presented. In situ data from Pt/Pd nanoparticles on carbon with the corresponding FFT/optical diffractogram illustrate an achieved resolution of 0.11 nm at… 

Angstrom analysis with dynamic in-situ aberration corrected electron microscopy

Following the pioneering development of atomic resolution in-situ environmental TEM (ETEM) for direct probing of gas-solid reactions, recent developments are presented of dynamic real time in-situ

In Situ TEM Measurement Methods

Advances in atomic resolution-environmental transmission electron microscopy (ETEM) for characterizing materials at the atomic scale, under controlled reaction conditions, are described. The ETEM

Low-Cost, Atmospheric-Pressure Scanning Transmission Electron Microscopy

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The Role of Gas in Determining Image Quality and Resolution During In Situ Scanning Transmission Electron Microscopy Experiments

As gas–solid heterogeneous catalytic reactions are molecular in nature, a full mechanistic understanding of the process requires atomic‐scale characterization under realistic operating conditions.

Probing structures of nanomaterials using advanced electron microscopy methods, including aberration‐corrected electron microscopy at the angstrom scale

Dynamic in‐column energy filtering in an AC environment provides an integral new approach to perform dynamic in situ studies with aberration correction and opens up striking new opportunities for atomic scale studies of nanomaterials.

In-situ Visualization and Analysis of Single Atom Dynamics in Chemical Reactions using Novel Environmental-Scanning Transmission Electron Microscopy (ESTEM)

Heterogeneous gas–solid catalyst reactions take place at the atomic level, and understanding and controlling complex catalytic reactions at the atom level are crucial for the development of improved

Development of the Atomic-Resolution Environmental Transmission Electron Microscope

The development of the novel atomic-resolution environmental transmission electron microscope (atomic-resolution ETEM) for directly probing dynamic gas–solid reactions in situ at the atomic level



Atomic-resolution electron energy loss spectroscopy imaging in aberration corrected scanning transmission electron microscopy.

It is demonstrated in a nonlocal model for electron energy loss spectroscopy (EELS) that delocalization of scanning transmission electron microscopy (STEM) images for single, isolated atoms is primarily determined by the width of the probe, even for light atoms.

Environmental high resolution electron microscopy and applications to chemical science

In Situ Transmission Electron Microscopy

The articles in this issue of MRS Bulletin provide a sample of what is novel and unique in the field of in situ transmission electron microscopy (TEM). The advent of improved cameras and continued

In situ electron microscopy technique probes catalysis at atomic level

Two DuPont research chemists have developed an in situ technique for directly probing interactions between gas molecules and solid surfaces at the atomic scale. The method is being used to develop

Atomic-Resolution Environmental Transmission Electron Microscopy for Probing Gas–Solid Reactions in Heterogeneous Catalysis

Advances in atomic-resolution environmental transmission electron microscopy (ETEM) and related techniques for probing gas–solid reactions in situ are described. The capabilities of ETEM allow the

Dynamic in situ experiments in a 1Å double aberration corrected environment

Dynamic in-situ experiments access metastable states and the mechanisms of reactions, phase transformations and nanostructure development (and in some cases destruction), as well as contributing key

Sub-ångstrom resolution using aberration corrected electron optics

The implementation of a computer-controlled aberration correction system in a scanning transmission electron microscope, which is less sensitive to chromatic aberration, is reported here and allows dynamic imaging of single atoms, clusters of a few atoms, and single atomic layer ‘rafts' of atoms coexisting with Au islands on a carbon substrate.

Environmental (S)TEM Studies of Gas–Liquid–Solid Interactions under Reaction Conditions

We review the development of time -resoklved high-resolution environmental scanning/ transmission electron microscopy [E(S)TEM] for directly probing dynamic gas-solid, liquid-solid, and

A very high temperature (2000°C) stage for atomic resolution in situ ETEM

Some important applications in the chemical and materials sciences require very high temperatures under gaseous atmospheres. For example, the formation of ceramics, carbon nanotubes, the conversion