The purpose of this study is to evaluate the influence of cation types on the rust resistance performance of new nucleic acid corrosion inhibitors in simulated concrete pore solution. Four common chlorinated ice salts (NaCl, KCl, CaCl₂, MgCl₂) are selected to study the corrosion behavior of chloride ions by linear polarization resistance method, electrochemical impedance spectroscopy and X-ray photoelectron spectroscopy (XPS). The results show that the cationic type will affect the thickness of the passivated film on the steel surface and the compactness of the passivated film formed by iron oxide and nucleic acid rust inhibitor. The type of cations affects the critical chloride concentration of nucleic acid inhibitor, following Na⁺≈K⁺>Ca⁺>Mg⁺.

中文翻译：

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阳离子类型对模拟混凝土孔隙溶液中DNA缓蚀剂处理钢筋腐蚀的影响

本研究旨在评估阳离子类型对新型核酸缓蚀剂在模拟混凝土孔隙溶液中防锈性能的影响。选取四种常见的氯化冰盐（NaCl、KCl、CaCl ₂、MgCl ₂），采用线性极化电阻法、电化学阻抗谱和X射线光电子能谱（XPS）研究氯离子的腐蚀行为。结果表明，阳离子类型会影响钢表面钝化膜的厚度以及氧化铁和核酸防锈剂形成的钝化膜的致密性。阳离子类型影响核酸抑制剂的临界氯化物浓度，遵循 Na ⁺ ≈K ⁺>Ca ⁺ >Mg ⁺。