Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10267539 | Electrochemistry Communications | 2005 | 5 Pages |
Abstract
This paper reports an approach to tailor the electrochemical properties of self-assembled monolayer of 16-mercaptohexadecanoic acid (HDA) on gold electrode with covalently coupling ethylene diamine. The electron transfer kinetics of electrode varies from blocking to radial diffusion and then to linear diffusion character by controlling the surface reaction period. However, when HDA monolayer reacts with propylamine or other diamine molecules with longer alkyl chains, such as 1,6-diaminehexan and 1,4-diaminebutane, only enhanced blocking behaviors are observed. This unusual behavior is explored by a series of experiments, and a possible reaction mechanism is proposed.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Yaqing Liu, Menglong Yang, Zhikun Zheng, Bailin Zhang,