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中文摘要：
利用电化学循环伏安和极化曲线,考察了镍电极在不同浓度苯并咪唑（BMIH）-乙腈体系的缓蚀效果.结果表明,随着缓蚀剂BIMH浓度的增加,其氧化电位正移,且氧化电流降低,腐蚀电位正移.调制电位下测试镍电极表面BMIH吸附的现场表面增强拉曼光谱.随电位正移,BIMH可在镍电极表面吸附成膜,与金属镍生成配合物,阻止镍电极的腐蚀.并考察了不同浓度BIMH的成膜行为.结果发现,0.001 mol·L-1BIMH即可在镍电极表面成膜,这表明非水乙腈体系的镍表面,BMIH有较佳的缓蚀效果.
英文摘要：
By measuring cyclic voltammograms and polarization curves, the inhibition effects of benzimidazole （BMIH） concentration in acetonitrile system on a nickel electrode were investigated. It was found that the oxidation and the corrosion potentials shifted positively,and the oxidation current decreased with the increase in the concentration of BIMH. Potential dependent adsorption and film formation behavior of BMIH on the nickel electrode were investigated by in situ SERS spectroscopy. With the potential moving from negative direction to positive direction, the complexes made of BIMH and nickel were formed, preventing the nickel electrode from corrosion. In addition, the 0.001 mol. L-1 of BIMH was good enough for corrosion inhibition of the nickel surface in acetonitrile system.
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