Direct Observation of Sample Dynamics in the Gaseous Environment: A Perspective on Current Trends and Future Directions of In Situ Gas Cell Transmission Electron Microscopy

Manisha De Alwis Goonatilleke, Melonie P. Thomas, Ahamed Ullah, Rose H. Pham, Beth S. Guiton

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations

Abstract

In situ environmental transmission electron microscopy (ETEM) is an emerging technique among in situ methods as it allows unique insights into the dynamic processes underlying gas-solid interactions. Aberration-corrected ETEMs providing atomically precise data mimicking benchtop conditions represent the state-of-the-art in in situ and operando experimentation. New developments in ETEM methods have sparked renewed interest in understanding solid-gas interactions, especially regarding catalyst systems, due to their structure-property correlation. Two types of ETEM systems are known: differentially pumped and windowed gas cell systems. With recent technological advancements, the gas cell system is emerging as a leading option for conducting in situ ETEM studies. In this Perspective, we have chosen to focus on recent reports in the past 4-5 years utilizing the windowed gas cell system, as well as several advancements in operando techniques, which highlight the extraordinary capabilities of the gas cell ETEM and its potential for the future.

Original languageEnglish
Pages (from-to)18791-18808
Number of pages18
JournalJournal of Physical Chemistry C
Volume127
Issue number38
DOIs
StatePublished - Sep 28 2023

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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