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    • 2. 发明公开
    • A DEVICE AND METHOD FOR THE PRODUCTION OF HYDROGEN PEROXIDE
    • 一种生产过氧化氢的装置和方法
    • EP3177754A1
    • 2017-06-14
    • EP15750326.9
    • 2015-08-05
    • VITO NV
    • DOMINGUEZ BENETTON, XochitlALVAREZ GALLEGO, Yolanda
    • C25B1/30C25B9/08
    • C25B1/30C02F1/4618C02F1/722C02F2001/46166C02F2001/4619C25B9/08
    • A method produces hydrogen peroxide in an aqueous solution by electrochemical reduction of oxygen. An oxygen containing gas is supplied to an electrochemically active side of a cathode contained in a cathodic compartment. The cathode contains a porous gas diffusion electrode, one side of which contains a carbon based electrochemically active layer capable of catalyzing the reduction of oxygen to hydrogen peroxide. The cathodic compartment is in fluid communication with an anodic compartment. At least one at least partly water soluble, weak protonic electrolyte is supplied to a catholyte. The weak protonic electrolyte has a pKa which is at least one unit higher than the pH of the catholyte at the onset of the oxygen reduction reaction to hydrogen peroxide. The catholyte is not pH buffered and the pH of the catholyte is let to evolve in course of the reaction.
    • 本发明涉及通过氧气还原在水溶液中生产过氧化氢的装置。 该装置包括至少一个包含至少一个阳极的阳极室,至少一个包含至少一个阴极的阴极室。 阳极室和阴极室流体连通。 阴极包括多孔气体扩散电极,多孔气体扩散电极的一侧包括能够催化氧还原成过氧化氢的电化学活性层。 阴极室包括用于将含氧气体供应到阴极的电化学活性侧的入口。 阴极电解液流体包含助催化剂,其中助催化剂包含至少一种处于部分解离状态的弱质子电解质。