Adsorption of anionic surfactant at the electrode–NaClO(4) solution interface

ABSTRACT: Adsorption of 1-decanesulfonic acid at the electrode–NaClO(4) solution interface was determined by double-layer differential capacity measurements. At potentials less than −1,200 mV, the adsorption of the anionic surfactant on the electrode does not occur. Low concentrations of the anionic...

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Detalles Bibliográficos
Autores principales: Gugała-Fekner, Dorota, Nieszporek, Jolanta, Sieńko, Dorota
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2015
Materias:
Original Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4495022/
https://www.ncbi.nlm.nih.gov/pubmed/26166898
http://dx.doi.org/10.1007/s00706-014-1382-7
Descripción
Sumario:ABSTRACT: Adsorption of 1-decanesulfonic acid at the electrode–NaClO(4) solution interface was determined by double-layer differential capacity measurements. At potentials less than −1,200 mV, the adsorption of the anionic surfactant on the electrode does not occur. Low concentrations of the anionic surfactant (below cmc) causes slight changes in the zero charge potential, E (z), and the surface tension at this potential, γ (z). The adsorption of the anionic surfactant was analyzed using the constants obtained from the following isotherms: Frumkin, corrected Flory–Huggins, and virial. GRAPHICAL ABSTRACT: [Image: see text]

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