METHOD OF CATALYTIC ELECTRODE MANUFACTURING BASED ON HETEROPOLY COMPOUNDS FOR HYDROGEN AND METHANOL FUEL ELEMENTS Russian patent published in 2015 - IPC H01M4/88 H01M8/10 B01J23/40 B01J23/63 

FIELD: electricity.

SUBSTANCE: invention relates to the electric engineering, namely to the method of manufacturing of the catalytic electrode of the membrane-electrode block, mainly for hydrogen and methanol fuel elements. The method of manufacturing of the fuel element catalytic electrode includes manufacturing of the composite catalyst based on the heteropoly compounds and active catalytic layer on its basis with addition of the water-repellent agent. The catalytic electrode is porous nanostructured composite layer 5-15 mcm comprising: catalyst, i.e. composite out of proton-conducting heteropoly compound in form of caesium salt of phosphotungstic acid and electric conducting addition out of the carbon material or alloyed stannic oxide, on which particles of the catalytic metal of the platinum group are applied with average size 3 nm, and 5-20% of hydrophobisator, preferably PTFE. At that content of the precious metals in the composite catalyst is from 5 to 30 wt %, of the electric conducting components - from 2 to 30 wt %.

EFFECT: increased electrochemical reactivity of the catalytic electrode and its corrosion resistance are the technical result of the invention.

5 cl, 3 dwg, 2 ex