A Method for Removing Self-Assembled Monolayers on Gold

A Method for Removing Self-Assembled Monolayers on Gold

Self-assembled monolayers (SAMs) have been widely used in studying interfacial phenomena, biological processes, electrochemistry, photoelectrochemistry, photoactivity and molecular interaction. Much research has been carried out in fabricating and removing SAMs on different substrates. In this work,...

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Veröffentlicht in:Langmuir 2008-08, Vol.24 (16), p.8707-8710
Hauptverfasser: Yuan, Mingquan, Zhan, Shihong, Zhou, Xiaodong, Liu, Yongjun, Feng, Liang, Lin, Yi, Zhang, Zhiling, Hu, Jiming
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Colloidal state and disperse state
Electrochemistry
Exact sciences and technology
General and physical chemistry
Interfaces: Adsorption, Reactions, Films, Forces
Surface physical chemistry
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Zusammenfassung:Self-assembled monolayers (SAMs) have been widely used in studying interfacial phenomena, biological processes, electrochemistry, photoelectrochemistry, photoactivity and molecular interaction. Much research has been carried out in fabricating and removing SAMs on different substrates. In this work, we report for the first time, to our knowledge, that SAMs of thiolates on gold can be removed by immersing SAMs in 0.5 M NaBH4 solution for 10 min. The procedure of removing thiolates was very convenient. Cyclic voltammetry, surface-enhanced Raman spectroscopy, and X-ray photoelectron spectroscopy were used to characterize this process. The results indicated that the SAMs of thiolates on gold can be removed efficiently by NaBH4.
ISSN:0743-7463
1520-5827
DOI:10.1021/la800287e