Measurement of aqueous film thickness between charged mercury and mica surfaces : a direct experimental probe of the Poisson-Boltzmann distribution
Data(s) |
13/11/2001
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Resumo |
A stable aqueous electrolyte film is formed between a mercury drop and a flat mica surface due to electrical double-layer repulsion when a negative potential is applied to the mercury. Film thickness has been measured as a function of applied potential while keeping the film pressure constant. By making measurements in this way, it is possible to map the data directly according to the Poisson-Boltzmann equation. An excellent fit to the data is obtained, providing direct evidence for this classical equation and its use as the basis of the Gouy-Chapman model of the diffuse double layer in electrolyte solutions.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
American Chemical Society |
Relação |
http://dro.deakin.edu.au/eserv/DU:30041439/horn-measurementofaqueous-2001.pdf http://dx.doi.org/10.1021/la0155505 |
Direitos |
2001, American Chemical Society |
Palavras-Chave | #Mercury (metal) #Mica #Poisson distribution #Pressure effects #Thickness measurement |
Tipo |
Journal Article |