Abstract
The Mg-xIn (x = 0.5, 1, 1.5 wt.%) alloys exhibit the negative difference effect. This anomalous phenomenon was studied in 0.1 M NaCl solution using galvanostatic polarization testing and real-time hydrogen collection. Strong anomalous hydrogen evolution was observed in all three magnesium alloys, but the rate of hydrogen evolution at different anodic current densities decreased with the increased content of In element. It shows that adding indium to Mg can reduce the negative difference effect of Mg alloy. Assessment of the exchange current density for hydrogen evolution reaction supported the previously-proposed kinetic model. The exchange current density related to the hydrogen evolution reaction decrease with the increased content of In element, indicating the ability of magnesium alloys to support the cathodic reaction is weakened, and In element can effectively reduce the negative difference effect of magnesium alloy.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Shanxi Province of China
Research Project Supported by Shanxi Scholarship Council of China
Key Scientific Research Project in Shanxi Province
Special Found Projects for Central Government Guidance to Local Science and Technology Development, Science and Technology Major Projects of Shanxi Province
Publisher
The Electrochemical Society
Subject
Materials Chemistry,Electrochemistry,Surfaces, Coatings and Films,Condensed Matter Physics,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials
Cited by
5 articles.
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