In situ mildly synthesized CuZnAl LDHs nanofilm with long-lasting corrosion resistance and self-healing properties induced by corrosive Cl- ions

被引：3

作者：

Chen, Chunchao ^{[1
]}

Gao, Xiang ^{[2
]}

Yuan, Boyu ^{[3
]}

Wang, Chao ^{[3
]}

Qiu, Juan ^{[1
]}

Gongsun, Kangwei ^{[1
]}

Lu, Ke ^{[4
]}

Ma, Houyi ^{[1
]}

机构：

[1] Shandong Univ, State Educ Minist, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China

[2] Qilu Univ Technol, Shandong Acad Sci, Engn & Technol Ctr Electrochem, Sch Chem & Chem Engn, Jinan 250353, Peoples R China

[3] Jiangsu Normal Univ, Sch Chem & Mat Sci, Xuzhou 221116, Jiangsu, Peoples R China

[4] Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Anhui, Peoples R China

来源：

CORROSION SCIENCE | 2024年 / 239卷

基金：

中国国家自然科学基金;

关键词：

In situ; CuZnAl LDHs; Anti-corrosion; Self-healing; EIS; Holography technology; LAYERED DOUBLE HYDROXIDES; COPPER; BENZOTRIAZOLE; IMPEDANCE; OXIDATION; BEHAVIOR; FTIR;

D O I：

10.1016/j.corsci.2024.112385

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A smart means to achieve the harmless treatment of corrosive Cl- have been proposed for protecting brass. In this method, intelligent self-healing nanofilms based on the interlayer anion exchange properties of LDHs in situ grow on brass surfaces. The Cl- ions replace the BTA- loaded between LDHs interlayers to induce self-healing, as the binding energy of Cl- is lower than that of BTA-, obtained from theoretical calculations. The simultaneous application of electrochemistry and digital holography technologies confirmed that the constructed film has high instantaneous corrosion inhibition efficiency (99.9 %), long-lasting corrosion resistance, and self-healing ability (50 days).

引用

页数：11