a m x p/p-n-c oxygen reduction catalyst and preparation method thereof
A P-N-C, catalyst technology, applied in the direction of structural parts, electrical components, battery electrodes, etc., can solve the problems of transition metal phosphides such as harsh conditions, complicated preparation methods, and less resource storage, and achieve aerobic reduction performance, simple operation methods, The effect of increasing the specific surface area
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Embodiment 1
[0036] Such as figure 1 As shown, a Fe 2 The preparation method of P / P-N-C oxygen reduction catalyst comprises the following steps:
[0037] S1, 0.2g PEI was dissolved in 30ml acetonitrile to obtain solution A;
[0038] S2. Add 2ml TEA to solution A and stir evenly to obtain solution B;
[0039] S3, adding 0.2g HCCP into 20ml acetonitrile to obtain solvent C;
[0040] S4. Ultrasonic reaction of solution B and solution C at a temperature of 60° C. for 3 hours to obtain solid D;
[0041] S5, washing the solid D twice with water and then twice with ethanol, and drying to obtain a white solid E;
[0042] S6, 0.3g white solid E solid, 0.1g FeCl after step S5 is dried 3 Mixed with 30ml of ethanol to prepare a suspension, after ultrasonic dispersion for 30min, the solvent was evaporated to obtain a solid mixture F.
[0043] S7, in the tube furnace in high-purity N 2 Under the atmosphere, the solid mixture F was heat-treated at 700 ° C for 2 h to obtain Fe 2 P / P-N-C oxygen red...
Embodiment 2
[0047] Such as figure 1 Shown, a kind of preparation method of FeP / P-N-C oxygen reduction catalyst comprises the following steps:
[0048] S1, 0.2g PEI was dissolved in 50ml methanol to obtain solution A;
[0049] S2. Add 2ml TEA to solution A and stir evenly to obtain solution B;
[0050] S3, adding 0.2g HCCP into 10ml methanol to obtain solvent C;
[0051] S4. Ultrasonic reaction of solution B and solution C at a temperature of 50° C. for 3 hours to obtain solid D;
[0052] S5, washing the solid D twice with water and then twice with ethanol, and drying to obtain a white solid E;
[0053] S6, 0.3g white solid E solid, 0.6g FeCl after step S5 is dried 2 It was mixed with 30ml of water to prepare a suspension, and after ultrasonic dispersion for 30min, the solvent was evaporated to obtain a solid mixture F.
[0054] S7, in the tube furnace in high-purity N 2 Under the atmosphere, the solid mixture F was heat-treated at 700° C. for 2 hours to obtain a FeP / P-N-C oxygen red...
Embodiment 3
[0056] Such as figure 1 Shown, a kind of preparation method of CoP / P-N-C oxygen reduction catalyst comprises the following steps:
[0057] S1, 1.0g PEI was dissolved in 50ml ethanol to obtain solution A;
[0058] S2. Add 5ml TEA to solution A and stir evenly to obtain solution B;
[0059] S3, adding 0.8g HCCP into 30ml ethanol to obtain solvent C;
[0060] S4. Ultrasonic reaction of solution B and solution C at a temperature of 70° C. for 3 hours to obtain solid D;
[0061] S5, washing the solid D twice with water and then twice with ethanol, and drying to obtain a white solid E;
[0062] S6, 0.9g white solid E solid, 1.8g CoCl after step S5 is dried 2 ·6H 2 O and 30ml DMSO were mixed to prepare a suspension, and the solvent was evaporated to dryness after ultrasonic dispersion for 30min to obtain a solid mixture F.
[0063] S7. In a tube furnace under a high-purity Ar atmosphere, heat-treat the solid mixture F at 1000° C. for 5 hours to obtain a CoP / P-N-C oxygen reducti...
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