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Related Concept Videos

Atomic Force Microscopy01:08

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Combining Electrochemical Scanning Tunneling Microscopy with Force Microscopy.

Andrea Auer1, Franz J Giessibl2, Julia Kunze-Liebhäuser1

  • 1Institute of Physical Chemistry, University of Innsbruck, 6020 Innsbruck, Austria.

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Summary

Understanding solid-liquid interfaces in electrochemistry is crucial for progress. This perspective highlights electrochemical scanning probe microscopy, especially simultaneous scanning tunneling and force microscopy, for advanced interface characterization and electrocatalysis research.

Keywords:
atomic force microscopyelectrochemical scanning tunneling microscopyqPlus sensor

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Area of Science:

  • Surface science
  • Electrochemistry
  • Nanotechnology

Background:

  • Electrochemical and electrocatalytic processes occur at electrode-electrolyte interfaces.
  • Microscopic understanding of these solid-liquid interfaces is vital for advancing electrochemistry.
  • In situ surface-sensitive microscopic techniques are key for interface characterization.

Purpose of the Study:

  • To outline the roadmap of electrochemical scanning probe microscopy (ESPM).
  • To explore recent developments in ESPM for interface characterization and electrocatalysis.
  • To introduce the simultaneous operation of electrochemical scanning tunneling microscopy (ESTM) and force microscopy (EFM) using a qPlus sensor.

Main Methods:

  • Scanning probe microscopy (SPM) techniques.
  • In situ surface-sensitive microscopy.
  • Simultaneous electrochemical scanning tunneling microscopy (ESTM) and electrochemical force microscopy (EFM) with qPlus sensors.

Main Results:

  • ESPM provides detailed microscopic understanding of solid-liquid interfaces.
  • Simultaneous ESTM-EFM offers high precision, flexibility, and versatility.
  • This combined approach enhances interface characterization capabilities.

Conclusions:

  • ESPM is a powerful tool for fundamental research in electrocatalysis and interface science.
  • Simultaneous ESTM-EFM presents significant potential for future advancements.
  • Key opportunities and challenges in the field were identified.