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J Chin Soc Corr Pro  2009, Vol. 29 Issue (2): 145-148    DOI:
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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
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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 words:  uric acid      nickel electrode      electrochemical impedance      corrosion inhibitor     
Received:  20 July 2007     
ZTFLH: 

TG174.42

 
Corresponding Authors:  LI Nianbing     E-mail:  linb@swu.edu.cn

Cite this article: 

QIAO Jianxian LUO Hongqun LI Ming LI Nianbing. CORROSION INHIBITION EFFECT OF URIC ACID SELF-ASSEMBLED FILM TO NICKEL. J Chin Soc Corr Pro, 2009, 29(2): 145-148.

URL: 

https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y2009/V29/I2/145

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