Activation of aluminium by indium ions in chloride solutions
作者： S.B. Saidman , J.B. Bessone
DOI: 10.1016/S0013-4686(96)00236-8
关键词: Aluminium 、 Indium 、 Qualitative inorganic analysis 、 Chloride 、 Single displacement reaction 、 Inorganic chemistry 、 Metal 、 Chemistry 、 Dissolution 、 Concentration effect
摘要: The effect of indium ions on the dissolution aluminium has been investigated in acid Cl− solution by means potentiostatic and potentiodynamic techniques, complemented SEM. activation process (dissolution at a potential more negative than pure Al) depends amount In deposited bare Al surface, possibly forming an In-Al surface alloy where adsorbs. This disposition reaction will depend potential, actual In3+ concentration, concentration local pH. At potentials −1.50 V, main deposition for low is galvanic Al/Al3+//InO2−/In reaction. higher concentrations, electroreduction InO2− quasibare can occur. positive displacement Al/Al3+//In3+/In
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