Nitrate ions as cathodic alkalization promoters for the electro-assisted deposition of sol-gel thin films

被引：17

作者：

Ding, Shang-Zhi ^{[1
]}

Liu, Liang ^{[1
]}

Hu, Ji-Ming ^{[1
]}

Zhang, Jian-Qing ^{[1
,2
]}

Cao, Chu-Nan ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China

[2] State Key Lab Corros & Protect, New Delhi 110016, India

来源：

SCRIPTA MATERIALIA | 2008年 / 59卷 / 03期

基金：

中国国家自然科学基金;

关键词：

thin films; sol-gel; electro-assisted deposition; nitrate; aluminum;

D O I：

10.1016/j.scriptamat.2008.03.028

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nitrate was used as a promoter to prepare dodecyltrimethoxysilane thin films on aluminum substrates. With the addition of nitrate into silane sol-gel precursors, the electro-assisted formation of silane films was facilitated, as indicated by electrochemical impedance spectroscopy, scanning electron microscopy and secondary-ion mass spectroscopy, due to the promotion in cathodic alkalization. However, an extra-high concentration of nitrate would be harmful because of the salting-out effect in precursors and the soluble nitrate remaining in silane films. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：297 / 300

页数：4

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