Stability of electrochemical hydrogen charging in NaCl aqueous solution containing NH4SCN: Effect of changes in solution chemistry

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-03-03 DOI:10.1016/j.corsci.2025.112843

Saya Ajito, Yusuke Kabasawa, Hiroshi Kakinuma, Motomichi Koyama, Eiji Akiyama

引用次数: 0

Abstract

Stability of electrochemical hydrogen charging to iron during potentiostatic polarization in a 3 wt% NaCl aqueous solution containing NH₄SCN was investigated using electrochemical hydrogen permeation tests. The hydrogen absorption rate remained stable when the specimen was polarized at potentials of −0.9 V (vs. Ag/AgCl (3.33 M KCl)), −1.1 V, or −1.3 V. However, at polarization potential of −1.6 V, the hydrogen absorption rate fluctuated considerably over time. This fluctuation was attributed to changes in solution chemistry, where the proton concentration increased and the SCN^– concentration decreased because of the oxidation reaction of SCN^– on the Pt counter electrode.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.