Electrochemical nanostructuring with an STM: A status report

Over the last decade, electrochemists have made increasingly the use of an STM as a tool for nanostructuring electrode surfaces. The various approaches include: (i) a mechanical impact of the tip on the surface, e.g., creating reaction centres by a tip crash or by locally removing tarnishing overlay...

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Bibliographic Details
Published in:Electrochimica acta 2005-05, Vol.50 (15), p.2989-2996
Main Authors: Kolb, D.M., Simeone, F.C.
Format: Article
Language:English
Subjects:
Chemistry
Copper
Electrochemistry
Electrodes: preparations and properties
Exact sciences and technology
General and physical chemistry
Metal clusters
Nanostructuring
Other electrodes
Palladium
Scanning tunneling microscopy
Tunneling spectroscopy
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Summary:Over the last decade, electrochemists have made increasingly the use of an STM as a tool for nanostructuring electrode surfaces. The various approaches include: (i) a mechanical impact of the tip on the surface, e.g., creating reaction centres by a tip crash or by locally removing tarnishing overlayers, (ii) the spatially confined metal deposition or dissolution via the tip and (iii) down-scaling of the SECM to nanometer dimensions. Examples for each of the different strategies are given. Nanostructuring electrode surfaces by metal clusters, which are generated by a jump-to-contact between tip and substrate is described in more detail with Cu and Pd on Au(1 1 1) as examples. Preliminary results of tunneling spectroscopy are also presented.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2004.12.042