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中国腐蚀与防护学报  2009, Vol. 29 Issue (2): 145-148    
  研究报告 本期目录 | 过刊浏览 |
尿酸自组装膜对镍缓蚀行为的影响
乔建仙;罗红群;李明;李念兵
西南大学化学化工学院 重庆 400715
CORROSION INHIBITION EFFECT OF URIC ACID SELF-ASSEMBLED FILM TO NICKEL
QIAO Jianxian; LUO Hongqun; LI Ming; LI Nianbing
School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715
全文: PDF(673 KB)  
摘要: 

采用极化曲线和交流阻抗技术研究了尿酸自组装膜对Ni在3%NaCl溶液中的缓蚀行为。结果表明,尿酸属于阳极型缓蚀剂,随着尿酸浓度的变化、组装时间和尿酸溶液pH值的不同,缓蚀效率有所不同。当尿酸浓度为0.8 mmol/L、溶液pH=9.0、组装 时间为12 h时电极的腐蚀电流密度最小,缓蚀效率最高,达到95.7%。

关键词 尿酸Ni电极交流阻抗缓蚀剂    
Abstract

The corrosion inhibition effect of the uric acid self-assembled film on nickel in 3% NaCl solution was studied by electrochemical methods. The experimental results showed that uric acid mainly suppressed the anodic reaction and its inhibition efficiency was different with the variation of uric acid concentration, self-assembled time as well as the pH value of uric acid solution. When the nickel electrode was modified with 0.8 mmol/L uric acid for 12 h at pH 9.0, the corrosion current density of the electrode was the lowest and the inhibition efficiency reached the highest value of 95.7%.

Key wordsuric acid    nickel electrode    electrochemical impedance    corrosion inhibitor
收稿日期: 2007-07-20     
ZTFLH: 

TG174.42

 
基金资助:

重庆市自然 科学基金重点项目(CSTC--2004BA4024)

通讯作者: 李念兵     E-mail: linb@swu.edu.cn
Corresponding author: LI Nianbing     E-mail: linb@swu.edu.cn

引用本文:

乔建仙 罗红群 李明 李念兵. 尿酸自组装膜对镍缓蚀行为的影响[J]. 中国腐蚀与防护学报, 2009, 29(2): 145-148.
LI Nian-Bing, QIAO Jian-Xian, LUO Hong-Qun. CORROSION INHIBITION EFFECT OF URIC ACID SELF-ASSEMBLED FILM TO NICKEL. J Chin Soc Corr Pro, 2009, 29(2): 145-148.

链接本文:

https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y2009/V29/I2/145

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