Abstract The suitability of bronopol as a corrosion inhibitor for aluminium metal in acidic hydrochloric solutions has been investigated through weight loss (WL) method, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), atomic force microscope (AFM) analysis and computational approaches. The weight loss data combined with the electrochemical measurement were used to evaluate the degree of protection and inhibition mechanism of the inhibitor. It was found that bronopol exhibits a maximum of 93.89% inhibition efficiency at 4000 ppm concentration against the aluminium corrosion in 0.5 M HCl acidic media. The adsorption of inhibitor on aluminium surface tends to obey Langmuir adsorption isotherm. Potentiodynamic polarization curves revealed bronopol to be a mixed sort of inhibitor. Experimental and theoretical outcomes were in perfect agreement with each other suggesting bronopol to be an environmental friendly corrosion inhibitor.

中文翻译：

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Bronopol 在 0.5M HCl 溶液中对铝的腐蚀抑制效率：来自实验和量子化学研究的见解

摘要 通过失重 (WL) 法、电化学阻抗谱 (EIS)、动电位极化 (PDP)、原子力显微镜 (AFM) 分析和计算方法研究了溴硝醇作为酸性盐酸溶液中铝金属的缓蚀剂的适用性。 . 失重数据结合电化学测量用于评价抑制剂的保护程度和抑制机理。结果表明，在 0.5 M HCl 酸性介质中，溴硝醇在 4000 ppm 浓度下对铝腐蚀的抑制效率最高为 93.89%。铝表面缓蚀剂的吸附服从朗缪尔吸附等温线。动电位极化曲线显示溴硝醇是一种混合抑制剂。