Abstract
Scanning electrochemical potential microscopy (SECPM) and electrochemical scanning tunnelling microscopy (EC-STM) allow for imaging the solid-liquid interface under in situ electrochemical conditions. In this chapter we take a look at two important aspects of SECPM and EC-STM studies: First, investigations on model electrode systems relevant for electrocatalysis are presented. Second, studies on the behavior of biomolecules immobilized on electrodes are shown. In both cases the use of EC-STM or SECPM allows for insights into the electrochemistry at a molecular level which cannot be achieved by other, rather integrating, methods.
Keywords
Dedicated to Maria-Elisabeth Michel-Beyerle and Rudolph A. Marcus; their seminal work provided an important basis for the review given here.
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Notes
- 1.
Potentials in this publication were measured vs. a Ag/AgCl, KCl (3 M) RE and are here converted to vs. NHE.
- 2.
Potentials in this publication were measured vs. a mercury/mercurous sulfate RE and converted to vs. NHE.
- 3.
Potentials in this publication were measured vs. a Ag/AgCl, KCl (3 M) RE and converted to vs. NHE.
- 4.
Potentials in this publication were measured vs. a Ag/AgCl RE and converted to vs. NHE.
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Herpich, M., Friedl, J., Stimming, U. (2015). Scanning Electrochemical Potential Microscopy (SECPM) and Electrochemical STM (EC-STM). In: Kumar, C.S.S.R. (eds) Surface Science Tools for Nanomaterials Characterization. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-44551-8_1
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