Operando kinetics of hydrogen evolution and elemental dissolution I: The dissolution of galvanized steel in hydrochloric acid

被引：8

作者：

Dou, Baojie ^{[1
,2
,3
]}

Li, Xuejie ^{[1
,4
]}

Han, Junsoo ^{[3
]}

Ogle, Kevin ^{[1
]}

机构：

[1] PSL Univ, Inst Rech ChimieParis, Chim ParisTech, CNRS, F-75005 Paris, France

[2] Sichuan Univ Sci & Engn, Sch Mat Sci & Engn, Zigong 643000, Peoples R China

[3] Sorbonne Univ, Lab Interfaces & Syst Electrochim, LISE, F-75005 Paris, France

[4] Western Univ, Dept Chem, London, ON N6A 5B7, Canada

来源：

CORROSION SCIENCE | 2023年 / 214卷

关键词：

Galvanized steels; Acid corrosion; Hydrogen evolution; Operando spectroscopy; Intermetallics; Kinetics; ANODIC-DISSOLUTION; MAGNESIUM; CHLORIDE; CORROSION; ALLOY;

D O I：

10.1016/j.corsci.2023.111007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new approach to the simultaneous measurement of the hydrogen evolution reaction (HER) and elemental dissolution rates is presented and applied to the reaction of galvanized steel coatings with HCl solution. Disso-lution profiles revealed several kinetic regimes including the dissolution of the intact coating, the dissolution of the nanometric Fe2Al5 intermetallic layer, and the corrosion of the steel substrate. The HER and Zn dissolution rates were in excellent agreement, and the quantities of interfacial Fe and Al were consistent with the predicted 50 nm thick Fe2Al5 intermetallic film, demonstrating the analytical capabilities of the atomic emission spec-troelectrochemistry (AESEC) technique.

引用

页数：10

共 27 条

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