Surface Stress-Charge Response of a (111)-Textured Gold Electrode under Conditions of Weak Ion Adsorption
Langmuir2008Vol. 24(16), pp. 8561–8567
Citations Over TimeTop 10% of 2008 papers
Maxim Smetanin, R. Viswanath, Dominik Kramer, D. Beckmann, Thomas Koch, Ludwig A. Kibler, D.M. Kolb, Jörg Weißmüller
Abstract
We report a cantilever bending investigation into the variation of surface stress, f, with surface charge density, q, for (111)-textured thin films of gold in aqueous NaF and HClO 4. The graphs of f(q) are highly linear, and the surface stress-charge coefficients, d f/d q, are -1.95 V for 7 mM NaF and -2.0 V for 10 mM HClO 4 near the potential of zero charge. These values exceed some previously published experimental data by a factor of 2, but they agree with recent ab initio calculations of the surface stress-charge response of gold in vacuum.
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