DOAJ Open Access 2011

In situ Real Time Electrochemical Measurement of Kinetics of Thiol Adsorption on Gold using Microelectrode

Ilwhan Oh Joohong Kye Seongpil Hwang

Abstrak

The growth kinetics of a self-assembled monolayer (SAM) in solution was measured in situ in real time electrochemistry using microelectrode. The steady-state current produced by the oxidation of ferrocene in the presence of a microelectrode was recorded as a function of time. Introduction of 11-mercaptoundecanoic acid (MUA) into the electrochemical cell produced a decrease in the steady-state current related to formation of an insulating MUA SAM. The current decrease permitted monitoring of the SAM coverage formation over time. The time constants derived from fitting the time-dependent current to the rearrange-limited Langmuir model agreed well with previously reported results determined using other techniques, demonstrating that our simple method can reliably characterize SAM adsorption kinetics.

Topik & Kata Kunci

Industrial electrochemistry Physical and theoretical chemistry

Penulis (3)

Ilwhan Oh

Joohong Kye

Seongpil Hwang

Format Sitasi

APA MLA BibTeX

Oh, I., Kye, J., Hwang, S. (2011). In situ Real Time Electrochemical Measurement of Kinetics of Thiol Adsorption on Gold using Microelectrode. https://doi.org/10.1016/S1452-3981(23)18393-3

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Informasi Jurnal

Tahun Terbit: 2011
Sumber Database: DOAJ
DOI: 10.1016/S1452-3981(23)18393-3
Akses: Open Access ✓