A kind of solid electrolyte water electrolysis membrane electrode and preparation method thereof
A solid electrolyte membrane and solid electrolyte technology, applied in the field of electrolysis of water, can solve problems such as easily destroying ordered electrodes, and achieve the effects of improving productivity and increasing proton permeability.
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Embodiment 1
[0035] (1) Preparation of cathode catalytic layer
[0036] Weigh an appropriate amount of Pt / C catalyst (40%, Johnson Mattehey), add 5% Nafion solution to completely soak the catalyst, wherein the mass percentage of Pt / C catalyst and Nafion is 85:25, then add isopropanol and mix well to prepare Catalyst mixed solution; ultrasonically disperse the catalyst mixed solution at room temperature to obtain catalyst slurry; uniformly load the catalyst slurry on carbon paper covered with carbon powder at 50°C, and dry at 70°C to obtain the cathode Catalytic layer, in which the catalyst loading is 0.5 mg cm -2 ;
[0037] (2) Preparation of anode double catalytic layer
[0038] Weigh an appropriate amount of IrO 2Catalyst (99.9%, Johnson Mattehey), add 5% Nafion solution to completely soak the catalyst, wherein the mass percentage of catalyst and Nafion is 60:40, then add isopropanol and mix well to prepare the catalyst mixture; put the catalyst mixture at room temperature Ultrasonic...
Embodiment 2
[0045] (1) Preparation of cathode catalytic layer
[0046] Weigh an appropriate amount of Pt / C catalyst (40%, Johnson Mattehey), add 5% Nafion solution to completely soak the catalyst, wherein the mass percentage of catalyst and Nafion is 85:25, then add isopropanol and mix evenly to prepare the catalyst mixture ; Ultrasonic the catalyst mixture at room temperature until it is completely dispersed to obtain a catalyst slurry; uniformly load the catalyst slurry on one side of the pretreated Nafion212 membrane at 50°C, and dry it at 70°C to obtain a cathode catalyst layer with a catalyst loading of 0.5 mg cm -2 ;
[0047] (2) Preparation of anode double catalytic layer
[0048] Weigh an appropriate amount of IrO 2 Catalyst (99.9%, Johnson Mattehey), add 5% Nafion solution to completely soak the catalyst, wherein the mass percentage of catalyst and Nafion is 90:10, then add isopropanol and mix well to prepare the catalyst mixture; put the catalyst mixture at room temperature ...
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