Abstract: The performance of the solid polymer electrolyte(SPE) membrane electrode composite ozone generator has been examined in deionized water for more than 10000 hours with the current density 1.5 Acm^-2.The average current efficiency of O₃ evolution is about 20%.The optimal specific power consumption is 58.3 Whg^-1(O₃).The stability of the anode catalysts on SPE membrane composite ozone generator has been studied by X-ray diffraction and atomic absorption spectrometry techniques.The results show that both the current efficiency of O₃ production and the stability of the composite with β-PbO₂ anode catalyst are better than those with the mixed α-PbO₂ and β-PbO₂ catalyst.

Key words: ozone, anode catalyst, lead dioxide, solid polymer electrolyte