{"title":"A study of adsorption kinetics of alkanethiol and alkanedithiol on gold using cyclic voltammetry","authors":"Hui He, Yan Xie, Yaqing Jiang","doi":"10.1109/ICIST.2011.5765067","DOIUrl":null,"url":null,"abstract":"A study of the adsorption kinetics of 1-octanethiol and 1,8-octanedithiol has been carried out on gold electrode by cyclic voltammetry with different concentrations. Analysis of the kinetic data show that the adsorption kinetics of 1-octanethiol and 1,8-octanedithiol can be satisfactorily described by Diffusion controlled Langmuir(DCL) model, irrespective of concentration. The rate constants of 1-octanethiol and 1,8-octanedithiol are almost invariable at different concertrations, however, the fluctuant range of 1,8-octanedithiol is larger than that of octanethiol. The rate constants of other alkanethiol(n=12,14,16,18) are measured and tunneling parameter (β) is determined from these data","PeriodicalId":6408,"journal":{"name":"2009 International Conference on Environmental Science and Information Application Technology","volume":"17 1","pages":"1248-1253"},"PeriodicalIF":0.0000,"publicationDate":"2011-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 International Conference on Environmental Science and Information Application Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIST.2011.5765067","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A study of the adsorption kinetics of 1-octanethiol and 1,8-octanedithiol has been carried out on gold electrode by cyclic voltammetry with different concentrations. Analysis of the kinetic data show that the adsorption kinetics of 1-octanethiol and 1,8-octanedithiol can be satisfactorily described by Diffusion controlled Langmuir(DCL) model, irrespective of concentration. The rate constants of 1-octanethiol and 1,8-octanedithiol are almost invariable at different concertrations, however, the fluctuant range of 1,8-octanedithiol is larger than that of octanethiol. The rate constants of other alkanethiol(n=12,14,16,18) are measured and tunneling parameter (β) is determined from these data
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