Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2789
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dc.contributor.authorSubramanian, R.-
dc.contributor.authorLakshminarayanan, V.-
dc.date.accessioned2007-06-13T08:44:46Z-
dc.date.available2007-06-13T08:44:46Z-
dc.date.issued2000-09-01-
dc.identifier.citationElectrochimica Acta, 2000, Vol.45, p4501-4509en
dc.identifier.issn0013-4686-
dc.identifier.urihttp://hdl.handle.net/2289/2789-
dc.descriptionRestricted Access.en
dc.description.abstractThe growth kinetics of self assembled monolayer of alkanethiols of different chain lengths and concentrations on an evaporated gold surface on mica has been studied in situ and in real time using electrochemical impedance spectroscopy. The interfacial capacitance obtained from the measurement of the imaginary component of impedance is used to calculate the surface coverage as a function of time. From this data, rate constants of adsorption of alkanethiols have been measured in 0.1 M LiClO4 in ethanol solution. The results show that the adsorption follows Langmuir kinetics at higher thiol concentration of 20 μM and partial diffusion controlled kinetics at 5 μM and lower. The adsorption at a concentration of 1 mM is so rapid that not, vert, similar40% of the full monolayer is covered within the first 500 ms.en
dc.format.extent177587 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherElsevier Science Ltd.en
dc.relation.urihttp://dx.doi.org/10.1016/S0013-4686(00)00512-0en
dc.rights2000 Elsevier B.Ven
dc.subjectAdsorption kinetics;en
dc.subjectAlkanethiols;en
dc.subjectSelf assembled monolayer;en
dc.subjectDouble layer capacitance;en
dc.subjectImpedance spectroscopyen
dc.titleA study of kinetics of adsorption of alkanethiols on gold using electrochemical impedance spectroscopyen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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