The corrosion inhibition effect of 1-Dodecyl-3-Methyl-1H-Imidazolium Nitrate (DMIN) on copper (Cu) in 0.5 mol/L H₂SO₄ has been studied. FTIR and XPS analysis was used to elucidate the bonding information of DMIN adsorption at the copper surface. SEM and AFM results show that DMIN can form an effective protective film on the Cu surface. Electrochemical testing found that at a temperature of 308 K and a concentration is 1 mM, the anti-corrosion efficiency of DMIN is 96.6% in sulfuric acid solution. DMIN further demonstrates excellent corrosion inhibition efficiency on copper in a temperature range of 298 K to 308 K. Quantum chemistry results show that DMIN can exhibit high quality anti-corrosion ability. Molecular dynamics simulation data show that the adsorption of DMIN onto the Cu surface adopts a parallel configuration. The adsorption of DMIN at the Cu interface was also found to obey the Langmuir adsorption model. DMIN has the characteristics of trace and high efficiency for copper corrosion inhibition.

1-Dodecyl-3-Methyl-1H-Imidazolium Nitrate (DMIN) 在 0.5 mol/LH ₂ SO _{4 中}对铜 (Cu) 的缓蚀作用已被研究。FTIR和XPS分析用于阐明铜表面吸附DMIN的键合信息。SEM和AFM结果表明DMIN可以在Cu表面形成有效的保护膜。电化学测试发现，温度为308 K、浓度为1 mM时，DMIN在硫酸溶液中的防腐效率为96.6%。DMIN 在 298 K 至 308 K 的温度范围内进一步证明了对铜的优异缓蚀效率。量子化学结果表明 DMIN 可以表现出高质量的防腐蚀能力。分子动力学模拟数据表明，DMIN 在 Cu 表面的吸附采用平行构型。还发现 DMIN 在 Cu 界面的吸附遵循朗缪尔吸附模型。