Synergetic effect of stannate with o-aminophenol on inhibiting H2 evolution of A1 anode in strong alkaline media
Synergetic effect of stannate with o-aminophenol on inhibiting H2 evolution of A1 anode in strong alkaline media作者机构：Department Of Chemistry and Materials College of Sciences Naval University of Engineering Wuhan 430033 P. R. China Administrative Office of Training Naval University of Engineering Wuhan 430033 P. R. China
出 版 物：《Journal of Shanghai University(English Edition)》 (上海大学学报（英文版）)
年 卷 期：2007年第11卷第4期
页 面：426-431页
学科分类：0817[工学-化学工程与技术] 08[工学]
主 题：o-amniophenol stannate Al-alloy hydrogen evolution alkaline media
摘 要：The performance of Al-alloy anode in 4 mol/L KOH with and without stannate and o-aminophenol at 25℃ and 55℃ was studied by hydrogen collection, potentiodynamic polarization and electrochemical impedance spectrum, o-aminophenol acts as a perfect inhibitor because of its adsorbability and forming chelate complex at its optimum concentration of 0.4 mol/L. Stannate enhances the inhibition of o-aminophenol and improves the activity of Al-alloy because of its reduction to tin. There is synergetic effect of stannate with o-aminophenol on the behavior of Al-alloy, and the inhibitive efficiency at 55℃ is better than that at 25 ℃.
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