:本文研究了一种新型的电极———PbO2 膜电极用于以苯酚为原料电解合成苯醌的反应 ,讨论了电解液的酸度、电流密度和苯酚浓度对电流效率的影响。结果表明 ,对于高浓度的苯酚溶液 ,在酸性条件下、保持适中的电流密度能获得较高的电流效率 In this paper, a new type of electrode, PbO2 membrane electrode, was used to synthesize benzoquinone by using phenol as raw material. The effects of electrolyte acidity, current density and phenol concentration on current efficiency were discussed. The results show that for the high concentration of phenol solution, under the acidic conditions, to maintain a moderate current density to obtain higher current efficiency