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Citation: Zhao Jian-Wei, Yu Hua-Zhong, Wang Yong-Qiang, Tang Ming, Cai Sheng-Min, Liu Zhong-Fan. The Adsorption Kinetics and Characterization of Azobenzene Self-Assembled Monolayers on ld[J]. Acta Physico-Chimica Sinica, ;1996, 12(07): 581-588. doi: 10.3866/PKU.WHXB19960702 shu

The Adsorption Kinetics and Characterization of Azobenzene Self-Assembled Monolayers on ld

1.
Center for Intelligent Materials Research,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871

Received Date: 29 December 1995
Available Online: 15 July 1996

The characterization and adsorption kinetics of azobenzene self-assembled monolayers(C8AzoC3 SAMs) on ld were reported. By assembling for about 24 hours, highly ordered and closely packed C8AzoC3 SAMs can be formed on ld surface and showed no electrochemical response, which were evidenced by contast angle titration, atomic force microscopic abservation and electrochemical measurements. The adsorption kinetics of C8AzoC3 molecules on ld was studied by controlling the assembling time and accompanying with dynamic characterization. The adsorption kinetic rate constant was estimated to be (1.2±0.2) × 103 mol-1•dm3•s-1 by using the data of contast angle titration and electrochemical measurements. A simple model of the self assembling process was suggested to illustrate the unique electrochemical behavior of C8AzoC3 SAMs.
- Azobenzene,
- Self-assembled monolayers(SAMs),
- Atomic force microscope(AFM),
- Contact angle titration,
- Electrochemistry
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