Hidden Impurities Generate False Positives in Single Atom Catalyst Imaging
Nicolò Allasia,
Sean Michael Collins,
Quentin Mathieu Ramasse
et al.
Abstract:Single‐atom catalysts (SACs) are an emerging class of materials, leveraging maximum atom utilization and distinctive structural and electronic properties to bridge heterogeneous and homogeneous catalysis. Direct imaging methods, such as aberration‐corrected high‐angle annular dark‐field scanning transmission electron microscopy, are commonly applied to confirm the atomic dispersion of active sites. However, interpretations of data from these techniques can be challenging due to simultaneous contributions to in… Show more
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