Abstract
A new method for measuring changes in interfacial tension and for determining potentials of zero charge at solid electrode/solution interfaces is described. A theoretical basis for the method, which involves a gravimetric measurement of the rise of a solution meniscus, due to electrocapillary phenomena at the surface of a partially immersed electrode, has been outlined. Variation of the mass of the solution meniscus with electrode potential for a gold foil in 0.1M solutions of, , and gave rise to parabolic‐like curves, with minima occurring at potentials of 0.140, 0.110, and 0.280V (NHE), respectively. The latter values are compared with potentials of zero charge characteristic of gold in similar solutions, as determined by other methods.
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