金银花植物提取物作为环保型缓蚀剂对低碳钢酸性溶液腐蚀的缓蚀效果

doi:10.11902/1005.4537.2025.137

中国腐蚀与防护学报

2026, Vol. 46

Issue (2): 541-548 CSTR: 32134.14.1005.4537.2025.137 DOI: 10.11902/1005.4537.2025.137

研究报告

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金银花植物提取物作为环保型缓蚀剂对低碳钢酸性溶液腐蚀的缓蚀效果

汪崧¹, 刘学武², 赵健², 李众¹, 杨吉可³(

)

^1.北京科技大学新材料技术研究院北京 100083
^2.中国华电科工集团有限公司北京 100071
^3.北京科技大学材料科学与工程学院北京 100083

Corrosion Inhibition Efficiency of Honeysuckle Extract as an Eco-friendly Inhibitor for Acid Corrosion on Mild Steel

WANG Song¹, LIU Xuewu², ZHAO Jian², LI Zhong¹, YANG Jike³(

)

^1.Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
^2.China Huadian Engineering Co. Ltd. , Beijing 100071, China
^3.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

引用本文:

汪崧, 刘学武, 赵健, 李众, 杨吉可. 金银花植物提取物作为环保型缓蚀剂对低碳钢酸性溶液腐蚀的缓蚀效果[J]. 中国腐蚀与防护学报, 2026, 46(2): 541-548.
Song WANG, Xuewu LIU, Jian ZHAO, Zhong LI, Jike YANG. Corrosion Inhibition Efficiency of Honeysuckle Extract as an Eco-friendly Inhibitor for Acid Corrosion on Mild Steel[J]. Journal of Chinese Society for Corrosion and protection, 2026, 46(2): 541-548.

全文: PDF(8484 KB) HTML

摘要:

制备了金银花植物提取物(HSE)，并利用红外光谱、失重法、电化学阻抗谱(EIS)、动电位极化曲线、零电荷电位测试和扫描电子显微镜等手段评估其在不同温度下1 mol/L HCl中对低碳钢的缓蚀性能。失重数据表明，当HSE质量浓度为300 mg/L时，缓蚀效率可达89%；电化学测试结果与失重数据一致。通过零电荷电位数据计算出的热力学结果表明，HSE在低碳钢表面的吸附行为是物理吸附和化学吸附协同进行，这也是HSE具有良好缓蚀性能的重要原因。

关键词 ：金银花提取物, 缓蚀剂, 低碳钢, 电化学

Abstract：

The effect of honeysuckle extract (HSE), as a kind eco-friendly Inhibitor of plant extracts, on the corrosion behavior of mild steel in 1 mol/L HCl solution at various temperatures was investigated by means of mass loss measurement, electrochemical test and surface observation. The results of weight losses indicated that the corrosion inhibition efficiency reached to 89% with a dose of 300 mg/L HSE, and then electrochemical test results were consistent with the weight loss measrement. The thermodynamics calculation indicates that both physisorption and chemisorption occurred, which induced the good corrosion inhibition property of HSE.

Key words： honeysuckle extract corrosion inhibitor mild steel electrochemistry

收稿日期: 2025-05-06 32134.14.1005.4537.2025.137

ZTFLH:

TG174

基金资助:国家自然科学基金(52401074)

通讯作者: 杨吉可，E-mail：Yangjk@ustb.edu.cn，研究方向为金属材料的腐蚀与防护

作者简介: 汪崧，女，1971年生，博士，工程师

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https://www.jcscp.org/CN/10.11902/1005.4537.2025.137 或 https://www.jcscp.org/CN/Y2026/V46/I2/541

图1 金银花提取物的红外光谱

图2 低碳钢在303 K下、不同HSE质量浓度(0，50，100，200，300 mg/L)的1 mol/L HCl溶液中浸泡3 h后的腐蚀速率

图3 低碳钢在不同HSE质量浓度(0, 50, 100, 200, 300 mg/L)和不同温度(303, 313, 323 K)下的1 mol/L HCl溶液中浸泡1 h后的Nyquist和Bode图

图4 用于拟合EIS谱的等效电路图

表1 图3中电化学阻抗谱的拟合参数

图5 303 K下低碳钢在0和50 mg/L HSE的1 mol/L HCl溶液中浸泡1 h后的EPZC和EOCP

图6 低碳钢在含不同质量浓度(0，50，100，200，300 mg/L)HSE以及不同温度(303，313，323 K)下的1 mol/L的HCl溶液中浸泡1.5 h后的动电位极化曲线

表2 图6中动电位极化曲线拟合参数

图7 330 K温度下低碳钢在不同质量浓度HSE的1 mol/L HCl溶液中腐蚀3 h后的SEM形貌

图8 不同温度下的HSE在低碳钢表面的Langemuir吸附等温线

T / K	C·θ^-1 / mg·L^-1	K_ads / L·g^-1	ΔG $a d s 0$ / kJ·mol^-1
303	43.0	2.33 × 10²	-25.3
313	89.6	1.16 × 10²	-23.5
323	34.0	2.94 × 10²	-25.9

表3 由图8得到的HSE在低碳钢表面的标准热力学和吸附平衡参数

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