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Issue 24, 2014
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Kink energy and kink dipole moments on vicinal Au(001) in halide electrolytes

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Abstract

Using electrochemical scanning tunnelling microscopy, we measured the potential-dependent kink energy and the corresponding dipole moments of kinks at step edges on vicinal Au(001) surfaces in chloride and bromide containing electrolytes. Combining the results of the potential dependence of the kink energy with impedance spectroscopy data for the surface charge, we can directly deduce the dipole moment of kinks at the Au steps with co-adsorbed Cl and Br, respectively. We find μCl = (6.0 ± 0.7) × 10−3 eÅ and μBr = (10.1 ± 0.6) × 10−3 eÅ.

Graphical abstract: Kink energy and kink dipole moments on vicinal Au(001) in halide electrolytes

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Article information


Submitted
29 Jan 2014
Accepted
11 Mar 2014
First published
17 Mar 2014

This article is Open Access

Phys. Chem. Chem. Phys., 2014,16, 12143-12149
Article type
Paper
Author version available

Kink energy and kink dipole moments on vicinal Au(001) in halide electrolytes

M. Al-Shakran, G. Beltramo and M. Giesen, Phys. Chem. Chem. Phys., 2014, 16, 12143
DOI: 10.1039/C4CP00448E

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