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Pesika NS, Stebe KJ, Searson PC. Kinetics of desorption of alkanethiolates on gold. Langmuir. 2006;22(8):3474-6doi: 10.1021/la052286x.
Pesika, N. S., Stebe, K. J., & Searson, P. C. (2006). Kinetics of desorption of alkanethiolates on gold. Langmuir : the ACS journal of surfaces and colloids, 22(8), 3474-6. https://doi.org/10.1021/la052286x
Pesika, Noshir S, et al. "Kinetics of desorption of alkanethiolates on gold." Langmuir : the ACS journal of surfaces and colloids vol. 22,8 (2006): 3474-6. doi: https://doi.org/10.1021/la052286x
Pesika NS, Stebe KJ, Searson PC. Kinetics of desorption of alkanethiolates on gold. Langmuir. 2006 Apr 11;22(8):3474-6. doi: 10.1021/la052286x. PMID: 16584213.
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Langmuir. 2006 Apr 11;22(8):3474-6. doi: 10.1021/la052286x.

Kinetics of desorption of alkanethiolates on gold.

Langmuir : the ACS journal of surfaces and colloids

Noshir S Pesika, Kathleen J Stebe, Peter C Searson

Affiliations

  1. Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA.

PMID: 16584213 DOI: 10.1021/la052286x

Abstract

Self-assembled monolayers (SAMs) of alkanethiols can undergo reductive desorption and oxidative re-adsorption. The Coulombic efficiency of the oxidative re-adsorption reaction is dependent on the chain length and solution pH. We show that the loss of alkanethiols from the surface after reductive desorption can be explained by a simple model that takes into account diffusion of the thiolate into the bulk solution at a rate that is determined by the bulk solubility. These results provide a quantitative basis for the determination of the loss of alkanethiols from the surface after reductive desorption.

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