Electrochemical characterization of copper surface modified by n-alkanethiols in chloride-containing solutions
文献类型：期刊论文
| 作者 | H. Y. Ma ; C. Yang ; B. S. Yin ; G. Y. Li ; S. H. Chen ; J. L. Luo |
| 刊名 | Applied Surface Science
 |
| 出版日期 | 2003 |
| 卷号 | 218期号:1-4页码:143-153 |
| 关键词 | self-assembled monolayers (SAMs) electron work function (EWF) defect electrochemical noise (EN) pitting self-assembled monolayers 2-dimensional polymer-films scanning-tunneling-microscopy hydrochloric-acid solution probe force microscopy alkyl thiol monolayers chemical modification 0.5m nacl corrosion gold |
| ISSN号 | 0169-4332 |
| 中文摘要 | The self-assembled monolayers (SAMs) of three n-alkanethiols, 1-octadecanethiol (C18SH), 1-dodecanethiol (C12SH), and 1-hexanethiol (C6SH), were formed on the fresh copper surface pretreated by nitric acid etch. The surface properties of the alkanethiol modified copper electrode in chloride-containing solutions were electrochemically characterized. The polarization measurements have shown that alkanethiol SAMs onto copper were able to protect effectively the underlying copper against corrosion. The cyclic voltammetric results, together with FT-IR measurements, showed that alkanethiol SAMs had quite good anodic inhibition at the lower anodic potentials, but this inhibition action gradually lost because of removal of SAMs from the copper substrate with the increase of anodic potentials. Alkanethiol SAMs were proved to be defective by scanning Kelvin probe (SKP) measurements. Electrochemical noise (EN) experiments have shown that SAMs-covered copper electrode suffered pitting attack in HCl solutions. The formation mechanism of pits was explained in this paper. (C) 2003 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35965]  |
| 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,B. S. Yin,et al. Electrochemical characterization of copper surface modified by n-alkanethiols in chloride-containing solutions[J]. Applied Surface Science,2003,218(1-4):143-153. |
| APA | H. Y. Ma,C. Yang,B. S. Yin,G. Y. Li,S. H. Chen,&J. L. Luo.(2003).Electrochemical characterization of copper surface modified by n-alkanethiols in chloride-containing solutions.Applied Surface Science,218(1-4),143-153. |
| MLA | H. Y. Ma,et al."Electrochemical characterization of copper surface modified by n-alkanethiols in chloride-containing solutions".Applied Surface Science 218.1-4(2003):143-153. |
入库方式： OAI收割
来源：金属研究所
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