The technique of Scanning Electrochemical Cell Microscopy (SECCM) has been expanded in recent years, with new categories of materials being tested, implementation of new instrumental capabilities, and the rapid adoption of the technique worldwide.
In the review, nanoscale charge transfer dynamics in energy storage/conversion about interface dynamics and electrochemical reaction mechanism are summarized. And future developments on SECCM combined with machine learning are putting forward.
We focus on the new horizons in operando/in situ characterisation techniques in electrocatalysis, providing a critical analysis of how advanced in situ techniques help us to deepen our understanding of reaction mechanisms and material evolution.
A tutorial review on scanning electrochemical cell microscopy (SECCM), offering practical guidances on instrumentation, probe fabrication, substrate preparation, and troubleshooting, to equip researchers in the field.
Whilst surface defects such as grain boundaries on polycrystalline electrocatalysts may yield unique behaviour, their isolated electrochemical characterisation is complicated by abnormal surface–electrolyte wetting, requiring extra analytical rigour.