Characterization of thermal products of pure and mixed basic copper carbonate and aluminum hydroxide

A series of pure and mixed oxides [CuO-Al2O3] system were prepared by therm al treatment of pure and mixed basic copper carbonate and aluminum hydroxid e in temperature range 250 degrees-1000 degrees C. The thermal behavior of the pure and binary salts has been studied using thermal analysis (DTA & TG ) techniques. The thermal products were characterized by the x-ray diffract ion analysis. The results revealed that, basic copper carbonate and aluminu m hydro ride decompose at about 230 degrees and 225 degrees C respectively, to produce copper and aluminum oxides. A solid state reaction takes place between the thermal products and form copper aluminate compound. The combin ation of two oxides led to a noticeable change in the physical and chemical properties which in turn affects the catalytic properties. The catalytic a ctivity of the pure and mixed oxides produced at different temperatures wer e measured using the decomposition of hydrogen peroxide as a model reaction .