Электрохимический синтез мезопористых наноматериалов

Abstract

AC electrochemical oxidation of copper and aluminum in the concentrated solutions of sodium chloride results in a system of copper hydroxide - aluminum oxyhydroxide (boehmite ) with specific surface area of ~ 280 m{2}/g and a mesoporous structure. Heat treatment at a temperature of 500 °С leads to dehydration of copper hydroxides to copper oxide (according to the results of IR spectroscopy), and complete decomposition to boehmite to alumina. This reduces the specific surface area to 230-240 m{2}/g and increases an average pore diameter (main porevolume is from 3.3 to 9.8 nm).