Product Description:
In the PEM stack water hydrogen production device,the membrane electrode, which is composed of a gas diffusion layer (GDL), acatalytic layer and a proton exchange membrane, is the main place where thestack performs electrochemical reactions and is the core component of PEMWE.
The diffusion layer not only supports thecatalyst-coated membrane electrode (Catalyst Coated Membrane, CCM), evenlydistributes the reaction water, and discharges the generated gas in a timelymanner, but it can also conduct current and other functions. It is one of thekey components that affects the hydrogen production performance of the stack.
Features:
1) Good electrical and thermal conductivity, thecontact resistance between electrode catalysts can be kept at a low level toreduce electrolysis overpotential;
2) Strong acid corrosion resistance. The anodediffusion layer should have good resistance to oxidation corrosion in order toovercome the oxygen evolution reaction of long-term contact, while the cathodediffusion layer should be resistant to hydrogen embrittlement in order toovercome the hydrogen evolution reaction of long-term contact;
3) Porous and elastic, because the diffusion layeris close to both sides of the membrane electrode and plays a supporting role inthe membrane electrode, it can withstand a certain amount of pressure;
4) Long service life and cheap price.
Specification:
Colour
| Light gray |
Dimension | Customized on demand |
Thickness
| 0.25、0.4、0.6、0.8、1.0mm |
Porosity | 50-90% |
Coating | Pt |