Synthesis of a PdIn-PdIn bi-continuous nanoporous structure by electrochemical dealloying in molten salts.

A study of the high-temperature electrochemical selective dissolution of PdIn intermetallics in molten mixtures of alkali chlorides with the formation of nanoporous structures has been carried out to obtain a coherent structure consisting of PdIn and PdIn intermetallics. The smallest pore size (approximately 100 nanometers) with a bi-continuous structure of PdIn-PdIn is obtained from the PdIn intermetallic phase at a temperature of 450 °C and a current density of 50 mA cm in a molten LiCl-KCl eutectic. It has been shown that the temperature of the anodic dissolution process is the most important factor in controlling the pore size and structural morphology.