Electrochemical investigation of dynamic interfacial processes at 1-octadecanethiol-modified copper electrodes in halide-containing solutions
文献类型：期刊论文
| 作者 | H. Y. Ma ; C. Yang ; S. H. Chen ; Y. L. Jiao ; S. X. Huang ; D. G. Li ; J. L. Luo |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2003 |
| 卷号 | 48期号:28页码:4277-4289 |
| 关键词 | self-assembled monolayers (SAMs) electrochemical impedance spectroscopy (EIS) electrochemical noise (EN) defect pitting self-assembled monolayers scanning-tunneling-microscopy 2-dimensional polymer-films hydrochloric-acid solution n-alkanethiol monolayers alkyl thiol monolayers impedance spectroscopy chemical modification anodic-dissolution schiff-bases |
| ISSN号 | 0013-4686 |
| 中文摘要 | 1-Octadecanethiol (C18SH) monolayers were self-assembled on the fresh and active copper surface pretreated by nitric acid etching method. The surface properties of the alkanethiol-modified copper electrode in halide-containing solutions were characterized systematically by using several electrochemical methods, including polarization curves, cyclic voltammetry, electrochemical impedance spectroscopy (EIS) and electrochemical noise (EN). The results show that C18SH self-assembled monolayers (SAMs) onto copper provide a flexible method that can protect the underlying copper against corrosion. With the immersion time of SAMs-coated copper electrode in NaCl and HCl corrosive solutions increasing, a slow loss of corrosion protection ability of SAMs indicates dynamic processes occurring at the electrode/solution interface and in the monolayers, such as expansion of the defects and transport of corrosive ions through defects of SAMs. Electrochemical noise (EN) is employed to detect the alkanethiol-modified copper surfaces immersed in HCl solution. This observation suggests the pitting process associate with dynamic processes in the I-octadecanethiol layer. (C) 2003 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35964]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. Y. Ma,C. Yang,S. H. Chen,et al. Electrochemical investigation of dynamic interfacial processes at 1-octadecanethiol-modified copper electrodes in halide-containing solutions[J]. Electrochimica Acta,2003,48(28):4277-4289. |
| APA | H. Y. Ma.,C. Yang.,S. H. Chen.,Y. L. Jiao.,S. X. Huang.,...&J. L. Luo.(2003).Electrochemical investigation of dynamic interfacial processes at 1-octadecanethiol-modified copper electrodes in halide-containing solutions.Electrochimica Acta,48(28),4277-4289. |
| MLA | H. Y. Ma,et al."Electrochemical investigation of dynamic interfacial processes at 1-octadecanethiol-modified copper electrodes in halide-containing solutions".Electrochimica Acta 48.28(2003):4277-4289. |
入库方式： OAI收割
来源：金属研究所
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