pp. 403-412
S&M538 Research Paper of Special Issue Published: 2003 Functionalization of Gold Surfaces Using Benzene-Patterned Self-Assembled Monolayers for Surface-Polarization Controlling Method [PDF] Kosuke Hayama, Kenshi Hayashi and Kiyoshi Toko (Received September 11, 2003; Accepted November 8, 2003) Keywords: cyclic voltammetry, electrochemical impedance, self-assembled monolayers, benzene, hazardous chemical
In order to improve the sensitivity of the surface-polarization controlling method to detect aromatic compounds which are hazardous chemicals, self-assembled monolayers (SAMs) in benzene were evaluated using cyclic voltammetry and electrochemical imped- ance spectroscopy. A cyclic voltammogram for the reductive desorption of SAMs adsorbed from a benzene solution containing 1-octanethiol (OT) suggested that OT adsorbed on Au surfaces competed with bulk benzene molecules. The results of electro- chemical impedance spectroscopy also revealed the structure of SAMs with benzene holes. Furthermore, benzene can be specifically identified at less than 1 ppm using the benzene- patterned SAM.
Corresponding author: Kiyoshi TokoCite this article Kosuke Hayama, Kenshi Hayashi and Kiyoshi Toko, Functionalization of Gold Surfaces Using Benzene-Patterned Self-Assembled Monolayers for Surface-Polarization Controlling Method, Sens. Mater., Vol. 15, No. 8, 2003, p. 403-412. |