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Atomic-scale secondary electron imaging for heterogeneous catalysis research

Journal Article · · Catalysis Science and Technology
DOI:https://doi.org/10.1039/d4cy01551g· OSTI ID:2543023
 [1];  [1]
  1. Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Surface characterization at the atomic scale is essential for understanding the catalytic properties of supported metal nanoparticles. Secondary electron (SE) imaging in scanning transmission electron microscopy (STEM) provides three-dimensional surface topographic information, enabling the characterization of the size, morphology, and distribution of supported nanoparticles. Furthermore, real-time observation of catalyst materials in a gaseous environment would enhance the understanding of catalyst dynamics under operational conditions. Ongoing technical developments in SE-STEM and advancements in computational methods are expected to facilitate atomic-scale surface observations and enable more quantitative and statistical analyses. This progress will not only elucidate fundamental mechanisms at the atomic level but also provide comprehensive and universal insights into catalyst performances. Here, this minireview showcases the recent advancements and research findings in surface-sensitive SE imaging in STEM for the characterization of active catalyst materials.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
SC0012704
OSTI ID:
2543023
Alternate ID(s):
OSTI ID: 2531266
Report Number(s):
BNL--227941-2025-JAAM
Journal Information:
Catalysis Science and Technology, Journal Name: Catalysis Science and Technology Vol. 15; ISSN 2044-4753
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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