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Adsorption of Glycosidic Surfactants at the Mercury Electrode

✍ Scribed by Christine Mousty; Catherine Maurice; Guy Mousset; Bernd Schöllhorn; Martine Lefeuvre; Daniel Plusquellec

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
221 KB
Volume
184
Category
Article
ISSN
0021-9797

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✦ Synopsis

The adsorption of glycosidic surfactants from aqueous electrolyte solutions on a mercury electrode was studied by means of differential capacitive measurements (tensammetric method). The adsorption behavior of the mono- and disaccharidic surfactants studied is discussed in relation to their micellar properties, in particular their respective critical micellar concentration (CMC). With monosaccharidic surfactants, a broad and bell-shaped peak is observed on the tensammetric curves and it suggests the formation of a monolayer called hemimicelle at the mercury electrode. For disaccharidic compounds, the split capacity peak observed at concentrations above the CMC suggests the formation of a multilayer of micelles throughout the electrical double layer.

📜 SIMILAR VOLUMES

Adsorption and reduction of m-nitropheno
Adsorption and reduction of m-nitrophenol at the dropping mercury electrode
✍ D. Britz; H.H. Bauer 📂 Article 📅 1968 🏛 Elsevier Science 🌐 English ⚖ 862 KB

m-Nitrophenol is adsorbed at the dme, and lowers the double-layer capacitance, at potentials more positive than its reduction potential. At that potential, a differential-capacitance peak appears that is partly faradaic in origin and partly due to the "desorption" (through reduction) of the m-nitrop