Effect of Ga3+ and In3+ Ions on the Anodic Dissolution of Aluminum in KOH Ethanol Solutions

Author:

Rybalka K. V.1,Beketaeva L. A.1

Affiliation:

1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Abstract

The anodic dissolution of aluminum in the KOH ethanol solutions is considered. It is shown that an addition of gallium and indium compounds to the 2 M KOH solution in 96% ethanol leads to an abrupt increase in the anodic dissolution current of aluminum near the open-circuit potential and its shift by 300 mV toward negative values. The discharge galvanostatic curves in the solutions with the additives of gallium and indium compounds contain a flat discharge plateau at the current densities up to 4 mA/cm2. The hydrogen evolution rate in a number of KOH ethanol solutions is measured.

Publisher

The Russian Academy of Sciences

Reference17 articles.

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