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The electrochemical desorption of an eicosanethiol monolayer by electrochemical quartz crystal microbalance
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1995, v.8 no.3, pp.383-389
Chung,
C.
(1995). The electrochemical desorption of an eicosanethiol monolayer by electrochemical quartz crystal microbalance. Analytical Science and Technology, 8(3), 383-389.
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Abstract
A new approach for the measurement of the surface coverages of monomolecular films fabricated by spontaneous adsorption of thiol compounds on gold is described. It is based on the mass change measurement with EQCM for the reductive electrochemical desorption of thiol in aqueous KOH solution. The results were compared with that of charge calculation during electrochemical desorption. The surface coverage value for eicosanethiol agrees with that obtained by charge calculation of electrochemical reduction as well as that expected from a geometrical model of the compact monolayer.
- keywords
- EQCM, monolayer, surface coverage, spontaneous adsorption
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