The present invention relates to a proton-conducting polymer membrane which comprises polyazoles and is coated with a catalyst layer and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture obtained according to step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, E) application of at least one catalyst-containing coating to the membrane formed in step C) and/or in step D).
本发明涉及一种质子传导聚合物膜,该膜由多唑组成并涂有催化剂层,可通过以下步骤获得 A) 根据步骤 B)制备一种混合物,该混合物包括聚
磷酸、至少一种多唑(聚合物 A)和/或一种或多种适合在热作用下形成多唑的化合物;B) 在惰性气体下将根据步骤 A)获得的混合物加热至最高 400 摄氏度、C)将根据步骤 A)和/或 B)获得的混合物涂敷在支撑物上,D)处理步骤 C)中形成的膜,直至其具有自支撑性,E)在步骤 C)和/或步骤 D)中形成的膜上涂敷至少一种含催化剂的涂层。