A titanium-based lead dioxide electrode co-doped with lanthanum and gadolinium and its preparation method and application
A technology of lead dioxide and co-doping, applied in chemical instruments and methods, plating of superimposed layers, electrolytic inorganic material plating, etc., can solve problems such as poor treatment effect, electrical poisoning, and difficulty in degrading pollutants , to achieve the effect of saving daily maintenance, mild conditions, and saving equipment investment costs
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[0042] The electrode preparation method is as follows:
[0043] (1) Coarsening treatment of Ti substrate: Ti sheet (3*7.5cm 2 ) was sanded and rounded with sandpaper, soaked in NaOH solution (mass fraction 40%) for 30min, washed with water, and then kept at 60°C for H 2 SO 4 Soak in solution (mass fraction: 20%) for 20min, wash with water, and finally treat in oxalic acid solution (mass fraction: 15%) at 80°C for 3h. After washing with water, the coarsened titanium sheet was obtained, which was gray and pitted, and placed in 1wt% oxalic acid for later use.
[0044] (2) Thermally decompose the bottom layer of tin antimony oxide: evenly coat the PPM precursor coating solution on the surface of the roughened Ti base, first bake it in a tubular electric furnace at a constant temperature of 130°C for 25 minutes, and then raise the temperature of the electric furnace to Bake at 500°C for 15 minutes at a constant temperature to complete one cycle, and repeat the aforementioned cyc...
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