Triboelectrochemistry on a nanometre scale (original) (raw)

Abstract

Atomic force microscopy was used to measure the spatial distribution of friction on iron electrodes under controlled electrode potentials in alkaline electrolytes. Electrochemical oxidation greatly decreased the mean friction values, which were further diminished by addition of octanoic acid, due to the anodic formation of iron oxide and octanoate phases, respectively. While the application of a potential step to oxidising conditions produced a relatively homogeneous spatial distribution of friction, potential cycling between oxidising and reducing conditions resulted in inhomogeneities at the 100 nm scale.

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Authors and Affiliations

1. Department of Earth Resources Engineering, Imperial College, SW7 2BP, London, UK
   G. H. Kelsall
2. Department of Mechanical Engineering, Imperial College, SW7 2BP, London, UK
   H. A. Spikes

Authors

1. Y. Zhu
2. G. H. Kelsall
3. H. A. Spikes

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Now at: Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK.

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Zhu, Y., Kelsall, G.H. & Spikes, H.A. Triboelectrochemistry on a nanometre scale.Tribol Lett 2, 287–312 (1996). https://doi.org/10.1007/BF00173134

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• Received: 06 June 1996
• Accepted: 15 July 1996
• Issue date: October 1996
• DOI: https://doi.org/10.1007/BF00173134

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