Cobalt (II) and nickel (II) oxides in porous glass were obtained by repeated cycles of impregnation with aqueous solutions of cobalt(II) and nickel(II) nitrates followed by dehydration and thermal decomposition of the salt. The results of electrical conductivity measurements, supplemented by correlation of the volume occupied by oxides with the carrier surface, reflect the formation of cobalt oxide and nickel-oxide monolayers on the glass pore walls.
