Preparation method of carbon-coated titanium dioxide nanoflower carrier, and application of carbon-coated titanium dioxide nanoflower carrier loaded platinum or platinum alloy nanocatalyst
A titanium dioxide and nanoflower technology, applied in structural parts, electrical components, battery electrodes, etc., can solve the problems of poor stability of amorphous carbon layer and difficult transport of reactants, achieving simple preparation process, obvious application prospects, and suitable for scale. The effect of chemical production
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Embodiment 1
[0028] Dissolve 2ml of n-butyl titanate in 60ml of glacial acetic acid and stir evenly to obtain a milky white solution; heat the mixed solution in a hydrothermal kettle to 140°C for 12 hours; after the hydrothermal kettle cools down naturally, a milky white gel or The precipitated product or the mixture of the two was centrifuged and washed with deionized water, and finally the product was dried to obtain the white flower-like titanium dioxide precursor p-TiO 2 . p-TiO in an air atmosphere 2 At a heating rate of 2°C min -1 Heat to 500°C and keep it warm for 3h to obtain flower-like titanium dioxide powder. Add 150mg of flower-like titanium dioxide powder into 50mL Tris buffer solution (pH: 8.5) and ultrasonically uniformly form a suspension, then add 150mg of dopamine, and stir at room temperature for 48h. Afterwards, it was centrifuged, washed and dried to obtain flower-shaped titanium dioxide coated with polydopamine. Then it was heated at 3°C min in an Ar atmosphere ...
Embodiment 2
[0030] Dissolve 2ml of n-butyl titanate in 60ml of glacial acetic acid and stir evenly to obtain a milky white solution; heat the mixed solution in a hydrothermal kettle to 140°C for 12 hours; after the hydrothermal kettle cools down naturally, a milky white gel or The precipitated product or the mixture of the two was centrifuged and washed with deionized water, and finally the product was dried to obtain the white flower-like titanium dioxide precursor p-TiO 2 . p-TiO in an air atmosphere 2 At a heating rate of 2°C min -1 Heat to 500°C and keep it warm for 3h to obtain flower-like titanium dioxide powder. Add 150 mg of flower-like titanium dioxide powder into 50 mL of tris-buffer solution (pH: 8.5) and ultrasonically uniformly form a suspension, then add 150 mg of dopamine, and stir at room temperature for 48 h. Afterwards, it was centrifuged, washed and dried to obtain flower-shaped titanium dioxide coated with polydopamine. It was heated at 3 °C min in an Ar atmosphere...
Embodiment 3
[0032]Dissolve 2ml of n-butyl titanate in 60ml of glacial acetic acid and stir evenly to obtain a milky white solution; heat the mixed solution in a hydrothermal kettle to 140°C for 12 hours; after the hydrothermal kettle cools down naturally, a milky white gel or The precipitated product or the mixture of the two was centrifuged and washed with deionized water, and finally the product was dried to obtain the white flower-like titanium dioxide precursor p-TiO 2 . p-TiO in an air atmosphere 2 At a heating rate of 2°C min -1 Heat to 500°C and keep it warm for 3h to obtain flower-like titanium dioxide powder. Add 150 mg of flower-like titanium dioxide powder into 50 mL of tris-buffer solution (pH: 8.5) and ultrasonically uniformly form a suspension, then add 150 mg of dopamine, and stir at room temperature for 48 h. Afterwards, it was centrifuged, washed and dried to obtain flower-shaped titanium dioxide coated with polydopamine. It was heated at 3 °C min in an Ar atmosphere ...
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