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The evolution of active sites at the solid-liquid interface plays a decisive role in determining the performance and stability of electrocatalysis and photocatalysis. As a powerful in situ characterization technique, Liquid-Phase Transmission Electron Microscopy (LP-TEM) offers unique opportunities to analyze the dynamic reaction processes at solid-liquid interfaces with nano- or even atomic-scale resolution. In this review, we first trace the development history of LP-TEM technology, highlighting its advantages for elucidating liquid-phase catalytic reaction systems. Integrating electrochemical and light illumination modules into LP-TEM vividly demonstrates the dynamic evolution processes of electrocatalysis and photocatalysis. Furthermore, we systematically summarize and discuss its applications in the electrocatalytic oxygen evolution reaction (OER), electrocatalytic CO2 reduction reaction (CO2RR), electrocatalytic oxygen reduction reaction (ORR), and photocatalytic hydrogen production, clarifying their current developmental status. Additionally, we address the limitations and challenges of the current LP-TEM technique, such as spatial resolution and electron beam damage, providing insights for future improvements. © 2025 Elsevier Ltd
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Nano Today
ISSN: 1748-0132
Year: 2025
Volume: 61
1 7 . 4 0 0
JCR@2022
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 6
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