Boron and nitrogen doped carbon porous nanosheet loaded transition metal nanoparticle material catalyst and preparation method and application thereof
A transition metal, nitrogen-doped carbon technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, ozone preparation, etc., can solve the problems of low catalytic efficiency and high catalyst cost, and achieve simple preparation steps, large specific surface area, The effect of increasing the efficiency of the electrolytic reaction
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Embodiment 1
[0027] Embodiment 1: Synthesis of Pt / BCN catalyst and its electrocatalytic preparation of ozone
[0028] (1) Dissolve 0.15 g of boric acid, 2 g of melamine, 0.5 g of polyethylene glycol, and 0.015 g of platinum acetylacetonate into 50 mL of water, disperse uniformly by ultrasonic, stir at room temperature for 1 hour, and dry the resulting solution at 80°C 5 hours, obtain solid mixture;
[0029] (2) Place the solid mixture obtained in step (1) in a tube furnace, raise the temperature from room temperature to 900°C at a rate of 5°C / min in a nitrogen atmosphere, and calcinate at 900°C for 6 hours to obtain boron, nitrogen The carbon-doped porous nanosheet-supported platinum nanoparticle material catalyst is marked as a Pt / BCN catalyst (the Pt / BCN catalyst was characterized by BET, and its specific surface area was 795 square meters per gram). The SEM figure, TEM figure of described Pt / BCN catalyst are as follows respectively Figure 1a and Figure 1b shown. From Figure 1a and...
Embodiment 2
[0034] Embodiment 2: Synthesis of Ni / BCN catalyst and its electrocatalytic preparation of ozone
[0035] (1) Dissolve 0.15 g of boric acid, 2 g of melamine, 0.5 g of polyethylene glycol, and 0.01 g of nickel acetylacetonate into 50 mL of water, disperse uniformly by ultrasonic, stir at room temperature for 1 hour, and dry the obtained solution at 80°C for 24 Hour, make the moisture in the solution evaporate completely, obtain solid mixture;
[0036] (2) Place the solid mixture obtained in step (1) in a tube furnace, raise the temperature from room temperature to 900°C at a rate of 5°C / min in a nitrogen atmosphere, and calcinate at 900°C for 6 hours to obtain boron, nitrogen Doped carbon porous nanosheets supported nickel nanoparticle material catalyst, marked as Ni / BCN catalyst.
[0037] The catalytic performance of the Ni / BCN catalyst that embodiment 2 prepares is tested, and concrete method is as follows:
[0038] Weigh 8 mg of the prepared Ni / BCN catalyst particles, mix t...
Embodiment 3
[0040] Embodiment 3: Synthesis of Fe / BCN catalyst and its electrocatalytic preparation of ozone
[0041] (1) Dissolve 0.15 g of boric acid, 2 g of melamine, 0.5 g of polyethylene glycol, and 0.013 g of iron acetylacetonate into 50 mL of water, disperse uniformly by ultrasonic, stir at room temperature for 1 hour, and dry the obtained solution at 80°C After 24 hours, the moisture in the solution was completely evaporated to obtain a solid mixture;
[0042] (2) Place the solid mixture obtained in step (1) in a tube furnace, raise the temperature from room temperature to 900°C at a rate of 5°C / min in a nitrogen atmosphere, and calcinate at 900°C for 6 hours to obtain boron, nitrogen Doped carbon porous nanosheets supported iron nanoparticles material catalyst, marked as Fe / BCN catalyst.
[0043] The catalytic performance of the Fe / BCN catalyst that embodiment 3 prepares is tested, and concrete method is as follows:
[0044] Weigh 8 mg of the prepared Fe / BCN catalyst particles, ...
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