Manufacturing method of membrane electrode of novel ultrathin proton exchange membrane fuel cell
A proton exchange membrane, fuel cell membrane technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of difficult to accurately control the thickness of the catalytic layer, unsuitable for making an area of MEA, affecting the size of the electrode, etc., to enhance the reverse diffusion capability. , improve performance, improve the effect of utilization
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[0034] See figure 1 , A new type of ultra-thin proton exchange membrane fuel cell membrane electrode includes a supporting layer of carbon paper 1, a plasma polymerized proton exchange membrane 2, oriented nanotubes 4, and Pt nanoparticles or PtRu nanoparticles 3 sputtered on the oriented nanotubes 4 .
[0035] The specific preparation includes the following steps:
[0036] 1. Hydrophobic carbon paper preparation: 5cm×5cm carbon paper is first treated with PTFE (5wt% PTFE) as a support layer;
[0037] 2. Preparation of Ni catalyst layer for oriented carbon nanotube growth:
[0038] (1) Plasma cleaning Use hydrophobic carbon paper as the deposition substrate of the metal Ni catalyst layer for oriented carbon nanotube growth, put it into the vacuum chamber substrate table, and pump the background vacuum to 10 -3 Below Pa, blow argon to a pressure of about 1 Pa, control the negative bias voltage of the substrate at about 100V, and perform RF plasma discharge cleaning for 5 minutes under...
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