Anodes and Cathodes for Fuel Cells

Since 1998 De Nora pioneered and patented E-TEK® technology, designing, developing and supplying Gas Diffusion Electrodes (GDE), Gas Diffusion Layers (GDL) and catalyst for Fuel Cells.


Energy Saving


Long Life

Gas Diffusion Electrode in Phosphoric Acid Fuel Cell

Gas Diffusion Electrodes are key components of the Fuel Cell architecture, because they are capable of providing good diffusion for the gas to enhance reaction velocity (extremely high micro porosity), high hydrophobicity to prevent the flooding of the pores (maintaining a correct border line between gas and liquid), high hydrophilicity to be easily wettable by the solution and good electrical contact to the catalyst.

De Nora is presently developing and commercializing the following types of GDE electrodes and catalyst:

  • Anodes and Cathode GDE and catalyst for PEM fuel cells;
  • Anodes and Cathodes GDE for HT PEM fuel cells (High Temperature PEM);
  • Anodes and Cathodes GDE for DM fuel cells (Direct Methanol);
  • Anode and Cathode catalyst for PA fuel cells(Phosphoric Acid)
  • Anode and Cathode GDE for alkaline fuel cells 

We could also manufacture Membrane Electrode Assembly (MEA) assembling a proton exchange membrane (PBI – Polybenzimidazole or others on specific request) with our proprietary GDE.

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De Nora capabilities in GDE production

De Nora manufactures Gas Diffusion Electrodes assuring high product standards and the highest production capabilities of GDE electrodes and catalyst. We can provide:

  • High volume and many size electrodes through a highly automated industrial production line
  • Consistent quality and high performances while controlling costs thanks rigorous process of quality control
  • Most appropriate catalyst layer and customized catalytic coatings specially developed by our R&D centers

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