Abstract
The catalytic activity of pure and doped cobalt oxide catalysts in the temperature range 250 – 800°C was investigated for the decomposition of hydrogen peroxide as a test reaction. The changes in texture, structure and phase accompanying the thermal treatment of the catalysts were identified by nitrogen adsorption, X-ray analysis and differential thermal analysis. The non-stoichiometry was measured by the hydrazine method. A correlation was obtained between the amount of excess surface oxygen and the catalytic activity of the catalysts, and a mechanism is proposed for the reaction on this basis.
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