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刘翠,于锦,孙硕.席夫碱与硝酸铈复配物对1060纯铝的缓蚀作用[J].稀有金属材料与工程(英文),2019,48(9):2930~2936.[Liu Cui,Yu Jin and Sun Shuo.Inhibition Effect of Schiff Base and Ce(NO3)3 Complex on the Corrosion of 1060 Pure Aluminum[J].Rare Metal Materials and Engineering,2019,48(9):2930~2936.]
Inhibition Effect of Schiff Base and Ce(NO3)3 Complex on the Corrosion of 1060 Pure Aluminum
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Received:March 08, 2018  Revised:April 02, 2018
Key words: corrosion inhibitor  Schiff base  Ce(NO3)3  1060 pure aluminum
Foundation item:国家材料环境腐蚀平台资助(项目号2005DKA10400-15-Z04)
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Liu Cui,Yu Jin and Sun Shuo  
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      A kind of triazole Schiff base was synthesized: 3-pyridine-4-amino-1,2,4-triazole-5-thione. The inhibition effects of Schiff base and Ce(NO3)3 complex on corrosion of 1060 pure aluminum in 3.5% NaCl have been studied by potentiodynamic polarization, electrochemical impedance spectroscopy and scanning electron microscopy with energy dispersive spectrometer. The results show that Schiff base can effectively inhibit the corrosion of pure aluminum in NaCl solution at 293 K. When concentration of Schiff base is 0.4 g.L-1, the inhibition efficiency is up to the highest, 76.0%. Schiff base is a mixed inhibitor, the adsorption of Schiff base on the 1060 pure aluminum surface was well fit by the Langmuir isotherm model, and there are both physisorption and chemisorption. Schiff base can inhibit the corrosion of pure aluminum and possesses a good synergistic effect with Ce(NO3)3, the corrosion inhibition efficiency of 0.2 g.L-1 Schiff base and 0.03 g.L-1 Ce(NO3)3 is up to 88.2%.