PORE STRUCTURE OF ALUMINUM HYDROXIDE PREPARED IN AN ELECTROLYZER CHAMBER UNDER VARIOUS CONDITIONS

Aluminum hydroxide of the pseudoboehmite morphology was formed upon th e precipitation of sodium aluminate in the anode chamber of an electro lyzer. The effect of electrolysis conditions, which are responsible fo r the precipitation (pH and T), on the pore structure of the hydroxide was examined. The reproducibility of discrete pore-size distribution of mesopores was shown. The hydroxides were similar in properties to t hose prepared by continuous single-flow reprecipitation; however, they exhibited larger volumes of mesopores and specific surface areas.