添加剂对高氯酸镁电解液中镁合金电极腐蚀行为的影响

金苏丹, 尚 伟, 陈国雄, 李秋凤, 易 兰, 张志远, 温玉清

doi:10.16577/j.issn.1001-1560.2022.0219

Email Alert　 RSS

材料保护 >

2022 , Vol. 55 >Issue 8: 83 - 89

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0219

试验研究

添加剂对高氯酸镁电解液中镁合金电极腐蚀行为的影响

展开

(桂林理工大学广西电磁化学功能物质重点实验室，广西桂林 541004)

张志远(1998-)，硕士研究生，研究方向为电极材料表面改性，电话：0773-8996039，E - mail:867963746@qq.com；

温玉清(1976-)，博士，教授，研究方向为应用电化学，电话：0773-8996039，E - mail：2006027@glut.edu.cn

收稿日期: 2022-01-20

修回日期: 2022-02-28

录用日期: 2022-04-01

网络出版日期: 2023-12-17

基金资助

广西自然科学基金项目(2020GXNSFAA159011，2021GXNSFAA220107)；广西区级2021年大学生创新创业训练计划支持项目(202110596152)资助

收起

Effects of Additives on the Corrosion Behavior of Magnesium Alloy Electrode in Magnesium Perchlorate Electrolyte

Expand

(Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, Guilin University of Technology, Guilin 541004, China)

Received date: 2022-01-20

Revised date: 2022-02-28

Accepted date: 2022-04-01

Online published: 2023-12-17

Fold

摘要

为了研究不同添加剂在高氯酸镁电解液中对镁合金电极的缓蚀效果，采用电化学工作站和扫描电子显微镜测试分析了添加不同添加剂的高氯酸镁电解液中镁合金的Tafel极化曲线、电化学阻抗谱和表面微观形貌、元素化学成分。结果表明：在高氯酸镁电解液中添加0.5 mol/L的三乙醇胺时，镁合金电极的腐蚀电流密度最小，阻抗谱容抗弧直径最大，缓蚀效果较好。同时，通过对其浸泡后的微观形貌以及化学成分分析，三乙醇胺能够吸附在镁合金表面形成一定厚度的保护膜，从而减缓了镁合金表面的腐蚀。

关键词： 镁合金; 添加剂; 高氯酸镁电解液; 三乙醇胺; 缓蚀效果

本文引用格式

金苏丹, 尚伟, 陈国雄, 李秋凤, 易兰, 张志远, 温玉清 . 添加剂对高氯酸镁电解液中镁合金电极腐蚀行为的影响[J]. 材料保护, 2022 , 55(8) : 83 -89 . DOI: 10.16577/j.issn.1001-1560.2022.0219

Abstract

Aiming at studying the corrosion inhibition effect of different additives on magnesium alloy electrode in magnesium perchlorate electrolyte, the Tafel polarization curve, electrochemical impedance spectroscopy (EIS), surface microscopic morphology and elemental chemical composition of magnesium alloy in magnesium perchlorate electrolyte with different additives were tested and analyzed by electrochemical workstation and scanning electron microscope (SEM). Results showed that when the magnesium perchlorate electrolyte was added with 0.5 mol/L triethanolamine (TEA), the corrosion current density of magnesium alloy electrode was the smallest, the EIS capacitive arc diameter was the largest, and the corrosion inhibition effect was the best. Meantime, by analyzing the microscopic morphology and chemical composition of the magnesium alloy electrode after immersion treatment, it was found that the triethanolamine could be adsorbed on the surface of magnesium alloy to form a protective film with a certain thickness, which slowed down the corrosion of magnesium alloy surface.

Key words： magnesium alloy; additive; magnesium perchlorate electrolyte; triethanolamine; corrosion inhibition effect

Options

文章导航

〈

〉

ISSN 1001-1560　CN 42-1215/TB
主管部门：中国机械工业联合会
主办单位：武汉材料保护研究所有限公司
编辑出版：《材料保护》编辑部

访问统计

总访问量
今日访问
在线人数

模态框（Modal）标题

摘要

本文引用格式

Abstract