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Related Experiment Video

Updated: Jun 26, 2025

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Visualizing Dynamic Single Atom Catalysis.

Edward D Boyes¹, Pratibha L Gai²

¹The York Nanocentre, Department of Physics, University of York, York, YO10 5DD, UK.

Advanced Materials (Deerfield Beach, Fla.)

|May 17, 2024

Summary

This summary is machine-generated.

Advanced in situ electron microscopy (EM) visualizes single atom catalysis in real-time. This enables a deeper understanding of catalyst function, improving industrial processes and material stability.

Keywords:

analytical in situ ESTEM with single atom resolution visualization and analysis of dynamic single atom catalysis

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Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

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Published on: April 12, 2019

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Area of Science:

Materials Science
Chemical Engineering
Nanotechnology

Background:

Heterogeneous catalysts are crucial for industrial processes like fuel and pharmaceutical production.
Atomic-level dynamics significantly impact catalyst stability and performance.
Real-time, in situ analysis under reaction conditions is key to understanding and improving catalysts.

Purpose of the Study:

To review innovative real-time in situ electron microscopy (EM) methods for studying dynamic single-atom catalysis.
To highlight advancements in environmental (scanning) transmission EM (E(STEM)) for atomic-scale visualization.
To discuss challenges and opportunities in tracking reacting atoms.

Main Methods:

Utilizing environmental scanning TEM (ESTEM) and environmental transmission EM (ETEM) for single-atom resolution.
Employing controlled flowing gas reaction environments.
Incorporating advanced in situ technologies like specialized sample holders and nanotomography.

Main Results:

ESTEM successfully visualized single atom dynamics during reactions and sintering deactivation.
Real-time atomic-scale analysis provided insights into catalyst yield and stability.
Progress in E(STEM) facilitates understanding of fundamental catalytic processes.

Conclusions:

In situ EM methods significantly enhance the understanding of dynamic single-atom catalysis.
Improved understanding can lead to better catalyst design, boosting industrial efficiency.
Advances offer valuable economic, environmental, and societal benefits through optimized catalysis.