Abstract: A new class of supermicroporous mixed oxides, with pore sizes in the 10-20 ? range has been prepared utilizing basic metal acetates. The reactions are carried out in non-aqueous solvent media to which an excess of amine is added. Hydrolysis of the reagents is effected by addition of a water-propanol mixture and refluxing. The amine and solvent are removed by thorough washing and/or calcining at temperatures as low as 200° C. Mixtures of transition metal oxides with either ZrO2, TiO2, La2O3, SiO2, Al2O3 or mixtures thereof were prepared. The surface area curves of the pure oxides are Type I with surface areas of 400-600 m2/g and up to 1100 m2/g for the mixed oxides.

Abstract: The present invention is directed to a system for transportation of electrolyte for use in an electrochemical cell. The system comprises a reservoir space located within the cell and below at least two electrodes of the cell, and at least one layer of absorptive material situated between the at least two electrodes, one or more layers of absorptive material being longer in length so as to protrude into the reservoir space.