Self-assembled monolayers on electrode surfaces: a probe for redox kinetics |
| |
Authors: | Sheela Berchmans Venkatraman Yegnaraman Gollakota Prabhakara Rao |
| |
Affiliation: | (1) Central Electrochemical Research Institute, Karaikudi 630 006, India e-mail: cecrik@cscecri.ren.nic.in, Fax: +91-4565-22088/23213, IN |
| |
Abstract: | The formation and characterization of self-assembled monolayers of organosulfur compounds like alkanethiols and dialkyl (di)sulfides on metal surfaces such as gold are areas of current research interest. The presence of an aromatic ring in a thiol molecule can enhance the binding between Au and the thiol, resulting in the formation of compact and impervious self-assembled monolayers. The formation of a monolayer of 2-mercaptobenzothiazole (MBT), containing an aromatic group with a fused thiazole ring but no long alkyl chain, is achieved on a gold electrode surface. Voltammetric investigations of ferro/ferricyanide and ferrous/ferric redox systems carried out on this Au|MBT electrode are reported. Further, the possibility of using such an Au|MBT electrode to distinguish between inner and outer sphere electron transfer reactions is indicated. Received: 2 January 1998 / Accepted: 14 May 1998 |
| |
Keywords: | Self-assembled monolayers Redox systems Voltammetry Organosulfur compounds Electron-transfer reactions |
本文献已被 SpringerLink 等数据库收录! |