We are studying on PEMFC electrocatalysts via magnetron sputter systems on carbon paper substrates. By this way we can perform CV and RDE experiments without using ionomer dispersion.
Right now i have to decide on the preparation method of MEA.
-I am worried about if micropippet drop or spray bottle is the best ionomer coated method? (I don't have any other option, maybe paint brush)
-What should be starting value for the ionomer/catalyst mass ratio?
-Can temperature of hot press be a reason of agglomeration of particles (above T=100C)?
-Thickness of the catalytic thin film is blow 50 nm.
Thank you.