[1]陈书军*,陈思屹,张 海,等.doi: 10.3969/j.issn.1001-3849.2025.05.001扁竹根提取物对Q420钢在HCl中的缓蚀性能研究[J].电镀与精饰,2025,(05):1-8.
　Chen Shujun*,Chen Siyi,Zhang Hai,et al.Anti-corrosion performance of Iris confusa root extract for Q420 steel in HCl medium[J].Plating & Finishing,2025,(05):1-8.
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doi: 10.3969/j.issn.1001-3849.2025.05.001扁竹根提取物对Q420钢在HCl中的缓蚀性能研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年05
页码:
1-8
栏目:
出版日期:
2025-05-31

文章信息/Info

Title:
Anti-corrosion performance of Iris confusa root extract for Q420 steel in HCl medium
作者:
陈书军*; 陈思屹; 张 海; 伍远辉; 郑 燕
(遵义师范学院 化学化工学院,贵州 遵义 563000)
Author(s):
Chen Shujun*;  Chen Siyi;  Zhang Hai;  Wu Yuanhui;  Zheng Yan
( School of Chemistry and Chemical Engineering, Zunyi Normal UniversityZunyi 563002, China)
关键词:
扁竹根; Q420钢; HCl; 缓蚀剂; 量子化学计算
Keywords:
Iris confusa root;  Q420 steel;  HCl;  corrosion inhibitor;  quantum chemical calculations
分类号:
TG174.42
文献标志码:
A
摘要:
结合实验测试与理论计算的方法研究了扁竹根提取物(ICF)在1 mol·L?1的HCl中对Q420钢的缓蚀性能与机理。电化学测试结果显示，ICF在HCl中对Q420钢的缓蚀效率随着ICF浓度的提高而增大，随着温度的上升而降低。添加0.8 g·L?1的ICF，在298 K下，对Q420钢的缓蚀效率高达92.95%。形貌分析也进一步证实了ICF的缓蚀性能。等温吸附模拟表明，ICF能自发地在Q420钢表面吸附，且遵循朗格缪尔(Langmuir)单层吸附模型。借助量子化学计算分析了ICF在的Q420钢表面的吸附与缓蚀机理。
Abstract:
The anti-corrosion performance and mechanism of Iris confusa root extract (ICF) for Q420 steel in 1 mol·L?1 HCl solutions were explored using experimental tests and theoretical calculations. The corrosion inhibition efficiency of ICF for Q420 steel HCl solutions is increased with the augment of ICF concentrations, and decreased with the increase of solution temperature. At 298 K, the addition of 0.8 g·L ?1 ICF exhibits an inhibition efficiency of 92.04%. The anti-corrosion performance of ICF was supported by morphological analyses. The adsorption model studies denote that the adhere of ICF at steel/solution interface complied with the Langmuir adsorption isotherm. Additionally, quantum chemical calculations were performed to further understand the adsorption and inhibition mechanism of ICF.

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更新日期/Last Update: 2025-05-19