| 摘要 |
Porous electrodes of metal or activated carbon for fuel cell electrodes e.g. hydrogen-oxygen fuel cells are catalyzed by treating with a solution containing a heavy metal salt of at least one of Fe, Co, Ni, Mn, Cr, Cu, Ag, Au, Pt, V, Ti, U, Th and rare earths, plus an Al salt and a Ru salt and heated to 700 DEG -900 DEG C. in an oxidizing or reducing atmosphere. The heavy metal and Al salts are preferably nitrates or nitrites although chlorides, chromates, oxalates, acetates and formates may be used. The Ru salts may be the trichloride, nitrosohydroxide, or nitrate. The final concentration of the deposited catalyst is 0.05-0.2% by weight of the heavy metal - Al catalyst with 0.25-8mgms. of Ru per sq. cm. of electrode surface. The treated electrode may be wet proofed with a 3% solution of paraffin in ether.ALSO:Porous electrodes of metal or activated carbon for fuel cell electrodes e.g. hydrogen oxygen fuel cells are catalysed by treating with a solution containing a heavy metal salt of at least one of Fe, Co, Ni, Mn, Cr, Cu, Ag, Au, Pt, V, Ti, U, Th and rare earths, plus an Al salt and a Ru salt and heated to 700 DEG -900 DEG C in an oxidising or reducing atmosphere. The heavy metal and Al salts are preferably nitrates or nitrites although chlorides, chromates, oxalates, acetates and formates may be used. The Ru salts may be the trichloride nitrosohydroxide, or nitrate. The final concentration of the deposited catalyst is 0.05-0.2% by weight of the heavy metal - Al catalyst with 0.25-8mgms. of Ru per sq. cm. of electrode surface. The treated electrode may be wet proofed with a 3% solution of paraffin in ether. |
