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http://hdl.handle.net/2289/3162| Title: | Cyclic voltammetric and electrochemical impedance studies on the structure, adsorption kinetics, and barrier properties of some organic dithiol self-assembled monolayers on gold |
| Authors: | Sur, Ujjal Kumar Subramanian, R. Lakshminarayanan, V. |
| Keywords: | Dithiol; Capacitance; Adsorption kinetics; Disorganization; Acetonitrile |
| Issue Date: | 1-Oct-2003 |
| Publisher: | Elsevier B.V. |
| Citation: | Journal of Colloid and Interface Science, 2003, Vol.266, p175 -182 |
| Abstract: | We have studied the orientation and barrier properties of self-assembled monolayers (SAMs) of two alkanedithiols, hexanedithiol, octanedithiol, and an aromatic dithiol, 1,4-benzene dimethanethiol (BDMT), on gold in acetonitrile. From our studies, we conclude that BDMT molecules can form more organized monolayers on gold than aliphatic dithiol SAMs due to extremely strong lateral van der Waals interaction among the phenyl rings in the former. A study of the adsorption kinetics of octanedithiol in ethanol indicates that the adsorption rate law is concentration dependent just as for alkanethiols. However, the rate of adsorption is considerably faster than for simple alkanethiols. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/3162 |
| ISSN: | 0021-9797 |
| Alternative Location: | http://dx.doi.org/10.1016/S0021-9797(03)00568-X |
| Copyright: | 2003 Elsevier B.V. |
| Appears in Collections: | Research Papers (SCM) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2003 JCIS V266 p175.pdf Restricted Access | Restricted Access | 166.14 kB | Adobe PDF | View/Open Request a copy |
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