METHOD OF MANUFACTURING METAL-OXIDE CATALYTIC ELECTRODE FOR LOW-TEMPERATURE FUEL CELLS Russian patent published in 2014 - IPC H01M4/88 H01M8/10 B01J37/00 

FIELD: chemistry.

SUBSTANCE: metal-oxide catalytic electrode represents a 2-15 mcm thick porous nano-structured layer of composite, consisting of: catalyst - monocrystalline particles ruthenium and antimony-doped tin dioxide, with the average diameter about 30 nm, on which chemically applied are particles of a catalytic metal of a platinum group with the average diameter 3 nm, as well as 10-30% of a hydrophobisator, preferably polytetrafluoroethylene, and 10-20% of a ion-conducting additive, preferably sulphonated fluoropolymer. A suspension of an active composite mass is prepared by dispersion of a metal-oxide catalyst, hydrophobising and ion-conducting additives in a mixture of water, isopropyl alcohol and glycerol in a ratio of 0.4:0.2:0.4, respectively, after which it is applied on a gas-diffusion layer in any way and thermally processed at 120°C.

EFFECT: increased power of a fuel cell with such electrode.

2 cl, 3 dwg, 4 ex