The effect of 5-nitroindazole as an inhibitor for the corrosion of copper in a 3.0% NaCl solution
The inhibition effect of 5-nitroindazole on the corrosion of copper in a 3.0% NaCl solution was investigated with the methods of weight loss, electrochemical tests, scanning electronic microscopy (SEM) and theoretical calculations. The weight loss and electrochemical results revealed that 5-nitroindazole is a mixed-type inhibitor with the inhibition efficiency is up to 99% at 0.4 mM, which was further confirmed by SEM observation. The adsorption of the inhibitor molecule on the copper surface was found to obey the Langmuir adsorption isotherm. The quantum chemical calculations and molecular dynamics simulation showed that 5-nitroindazole is adsorbed strongly on the copper surface in a parallel mode through the indazole ring.
研究领域:
材料科学
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腐蚀与防护
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物理化学
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表面科学
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电化学
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金属材料
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理论化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）