Integrated oxygen reduction hydrogen peroxide generating negative electrode and preparation method thereof
A hydrogen peroxide, integrated technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of cumbersome preparation steps, reduce catalytic sites, block internal channels, etc., and achieve simple and easy preparation methods and facilitate large-scale production Effect
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Embodiment 1
[0023] 0.2 g of acetylene black was ultrasonically dispersed in 20 mL of N-N dimethylformamide solution, and then 2 g of polyvinylidene fluoride was added, and the mixed system was placed at 70 o After continuous mechanical stirring in a C oil bath for 5 h, a blended polymer solution was obtained. Repeat the immersion-pulling operation of the conductive graphite paper in the above-mentioned blend solution for 5 times, so that the blend solution is evenly coated on the surface of the graphite paper. Subsequently, the graphite paper was quickly soaked in water so that the surface blended liquid phase-separated and became solid and tightly adhered to the graphite paper. After soaking for 30 min, the graphite paper was placed at 100 o Dry in a high temperature oven at C. Place the dried graphite paper in a high-temperature furnace, and under the protection of an inert atmosphere, heat up to 900 o C, constant temperature treatment for 180 min, and then cooling down to room temper...
Embodiment 2
[0029] 0.2 g of acetylene black was ultrasonically dispersed in 20 mL of N-N dimethylformamide solution, and then 2 g of polyvinylidene fluoride was added, and the mixed system was placed at 60 o After continuous mechanical stirring in the C oil bath for 4 h, a blended polymer solution was obtained. Repeat the immersion-pulling operation of the conductive graphite paper in the above-mentioned blend solution for 5 times, so that the blend solution is evenly coated on the surface of the graphite paper. Subsequently, the graphite paper was quickly soaked in water so that the surface blended liquid phase-separated and became solid and tightly adhered to the graphite paper. After soaking for 30 min, the graphite paper was placed at 100 o Dry in a high temperature oven at C. Place the dried graphite paper in a high-temperature furnace, and under the protection of an inert atmosphere, heat up to 800 o C, constant temperature treatment for 120 min, and then cooling down to room temp...
Embodiment 3
[0032]0.2 g of acetylene black was ultrasonically dispersed in 20 mL of N-N dimethylformamide solution, and then 2 g of polyvinylidene fluoride was added, and the mixed system was placed at 80 o After continuous mechanical stirring in a C oil bath for 6 h, a blended polymer solution was obtained. Repeat the immersion-pulling operation of the conductive graphite paper in the above-mentioned blend solution for 5 times, so that the blend solution is evenly coated on the surface of the graphite paper. Subsequently, the graphite paper was quickly soaked in water so that the surface blended liquid phase-separated and became solid and tightly adhered to the graphite paper. After soaking for 30 min, the graphite paper was placed at 100 o Dry in a high temperature oven at C. Place the dried graphite paper in a high-temperature furnace, and under the protection of an inert atmosphere, heat up to 1000 o C, constant temperature treatment for 240 min, and then cooled to room temperature,...
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