page_title: Gas diffusion electrode
section_title: Sintered electrode
hierarchical_section_title: Gas diffusion electrode / Sintered electrode
caption_attribution_description: polished cut image of a gas diffusion electrode.
context_page_description: Gas diffusion electrodes are electrodes with a conjunction of a solid, liquid and gaseous interface, and an electrical conducting catalyst supporting an electrochemical reaction between the liquid and the gaseous phase.
context_section_description: In this image of a sintered electrode it can be seen that three different grain sizes were used. The different layers were:
  top layer of fine-grained material
  layer from different groups
  gas distribution layer of coarse-grained material
  Most of the electrodes that were manufactured from 1950 to 1970 with the sintered method were for use in fuel cells. This type of production was dropped for economic reasons because the electrodes were thick and heavy, with a common thickness of 2 mm, while the individual layers had to be very thin and without defects. The sales price was too high and the electrodes could not be produced continuously.
caption: Sintered electrode
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