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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/109/04/0277-0287

    • Keywords

       

      Self-assembled monolayer; redox system; electron transfer kinetics; underpotential deposition; voltammetry

    • Abstract

       

      Electrochemical studies on gold electrodes covered with self-assembled monolayers (SAM) of aminoethane thiol (AET), mercaptobenzothiazole (MBT) and octadecyl mercaptan (ODM) have been carried out using cyclic voltammetry. Study of the influence of these monolayers on the double layer capacity of the interfaces involving the Au/SAM electrodes and of the electron transfer kinetics of chosen redox reaction probes, viz., Fe(CN)64−/3−, Fe2+/3+, hydroquinone/quinone(H2 Q/Q) and Cu underpotential deposition, offers a wealth of information that can throw light on the role of SAMs in allowing/moderating/blocking the electron transfer at such interfaces. These details are presented and discussed in the paper.

    • Author Affiliations

       

      Sheela Berchmans1 V Yegnaraman1 G Prabhakara Rao1

      1. Central Electrochemical Research Institute, Karaikudi - 630 006, India
    • Dates

       
  • Journal of Chemical Sciences | News

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