PEM membrane electrode anode catalyst layer slurry, preparation method thereof and membrane electrode

The invention provides PEM membrane electrode anode catalyst layer slurry, a preparation method thereof and a membrane electrode. The slurry comprises an anode catalyst, inorganic salt, an ionomer solution, alcohol and deionized water. Wherein the anode catalyst is a supported iridium-based catalyst, and the inorganic salt is ammonium salt. The combination and distribution of the catalyst and the ionomer are changed by regulating and controlling the microstructure of the ionomer, so that the stability of the membrane electrode is improved. And the structure and the performance of the catalyst are not influenced while the stability of the membrane electrode is improved. Inorganic salts suitable for regulating and controlling the microstructure of the ionomer are found, and the optimal combination and distribution mode of the catalyst and the ionomer for improving the stability is explored. The durability of the PEMWE is enhanced from the time dimension, and the cost of the PEMWE is reduced. 本发明提供了一种PEM膜电极阳极催化层