In Situ Electrochemical Atomic Force Microscopy: From Interfaces to Interphases.

Annu Rev Anal Chem (Palo Alto Calif)

1State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China; email:

Published: July 2024

AI Article Synopsis

  • The electrochemical interface between an electrode and electrolyte influences the reaction rate and mechanism due to its varying structure and properties.
  • Advancements in energy electrochemistry have highlighted the importance of solid-electrolyte interphases and surface property changes in electrode materials.
  • The review evaluates atomic force microscopy (AFM) as a tool for in situ characterization of these interfaces, showcasing its benefits and detailing future prospects for electrochemical AFM development.

Article Abstract

The electrochemical interface formed between an electrode and an electrolyte significantly affects the rate and mechanism of the electrode reaction through its structure and properties, which vary across the interface. The scope of the interface has been expanded, along with the development of energy electrochemistry, where a solid-electrolyte interphase may form on the electrode and the active materials change properties near the surface region. Developing a comprehensive understanding of electrochemical interfaces and interphases necessitates three-dimensional spatial resolution characterization. Atomic force microscopy (AFM) offers advantages of imaging and long-range force measurements. Here we assess the capabilities of AFM by comparing the force curves of different regimes and various imaging modes for in situ characterizing of electrochemical interfaces and interphases. Selected examples of progress on work related to the structures and processes of electrode surfaces, electrical double layers, and lithium battery systems are subsequently illustrated. Finally, this review provides perspectives on the future development of electrochemical AFM.

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http://dx.doi.org/10.1146/annurev-anchem-061422-020428DOI Listing

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