The performance of the electrospray technique was applied to obtain a gas diffusion layer (GDL) for a proton exchange membrane fuel cell. It was confirmed by confocal microscopy that polytetrafluorethylene (PTFE) was impregnated into the backbone. forming a dispersed layer of microscopic size homogeneously distributed over the substrate. The PTFE layer was characterized by infrared sp... https://thebrickes.shop/product-category/pepper-shaker/