Abstract
An in situ scanning tunneling microscope has been used to study the dynamics of electrode processes. The electrochemical oxidation of graphite and the dissolution of copper clusters from a polycrystalline gold surface are described as examples for such processes. It is also demonstrated that single platinum clusters exhibit a high mobility on graphite surfaces. The mobility is reduced when the platinum forms a network on the graphite surface. In addition, the use of the scanning tunneling microscope as a tool for nanomodifications on graphite surfaces is demonstrated. Holes and copper clusters of nanometer size were generated under in situ conditions using the tunneling tip.
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