Importance

Loading Importance Indicators...

Abstract

The present invention concerns a method for preparing a catalyst coated membrane including the steps of:

coating a substrate with a first catalyst dispersion thereby obtaining a first catalyst dispersion coated substrate,providing a second side of a membrane with a support film,coating a first side of the membrane with a second catalyst dispersion, thereby obtaining a second catalyst dispersion coated first side of the membrane,drying the first catalyst dispersion thereby obtaining a first catalyst coated substrate or drying the second catalyst dispersion coated first side of the membrane thereby obtaining a second catalyst coated first side of the membrane,laminating the first catalyst coated substrate to the second catalyst dispersion coated first side of the membrane or laminating the first catalyst dispersion coated substrate to the second catalyst coated first side of the membrane so that the first catalyst and the second catalyst superimpose, thereby forming a laminate including a membrane comprising a first catalyst layer,drying the laminate,removing the support film from the second side of the membrane,coating a third catalyst dispersion on the second side of the membrane,drying the third catalyst dispersion, thereby obtaining a second catalyst layer on the membrane, andremoving the substrate from the first catalyst coated substrate.

Loading the Abstract Image...

First Claim