Non-crystal type manganese oxide loaded nitrogen-doped carbon-based (MnOx/NC) catalyst, and preparation method thereof
A manganese oxide, nitrogen-doped carbon technology, used in electrochemical generators, final product manufacturing, sustainable manufacturing/processing, etc., can solve the problems of decreased catalytic performance, poor electrical conductivity, easy aggregation, etc. , conducive to dispersion, the effect of large surface area
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Embodiment 1
[0033] Example 1: MnO x / NC-15wt.%-900℃(MnO x / NC means that the prepared material is Ketjen carbon supported by nitrogen-doped amorphous manganese oxide, 15wt.% means that the mass of potassium permanganate charged accounts for 15% of the total mass of all raw materials, and 900°C means that the calcination temperature is 900°C)
[0034] Weigh 0.5g NH 4 Cl with 97.5mg KMnO 4 Put it in a mortar, mix the two evenly and grind them thoroughly for 10 minutes. Finally, add 50mg Ketjen carbon, mix well and set aside.
[0035] The mixture of the above three raw materials was placed in a ball mill jar and ground at a speed of 500 rpm for 1 h. Then put the above material in N 2 At 3°C min under atmosphere -1 The temperature was raised to 900°C, and kept at this temperature for 2 hours, and weighed after natural cooling, the obtained product was MnO x / NC catalyst.
Embodiment 2
[0036] Example 2: MnO x / NC-10wt.%-900℃(MnO x / NC means that the prepared material is Ketjen Carbon loaded with nitrogen and doped with amorphous manganese oxide, 10wt.% means that the mass of potassium permanganate is 10% of the total mass of all raw materials, and 900°C means that the calcination temperature is 900°C )
[0037] Weigh 0.5g NH 4 Cl with 62mg KMnO 4 Put it in a mortar, mix the two evenly and grind them thoroughly for 10 minutes. Finally, add 50mg Ketjen carbon, mix well and set aside.
[0038] The mixture of the above three raw materials was placed in a ball mill jar and ground at a speed of 500 rpm for 1 h. Then put the above material in N 2 At 3°C min under atmosphere -1 The temperature was raised to 900°C, and kept at this temperature for 2 hours, and weighed after natural cooling, the obtained product was MnO x / NC catalyst.
Embodiment 3
[0039] Example 3: MnO x / NC-5wt.%-900℃(MnO x / NC means that the prepared material is Ketjen Carbon loaded with nitrogen and doped with amorphous manganese oxide, 5wt.% means that the mass of potassium permanganate is 5% of the total mass of all raw materials, and 900°C means that the calcination temperature is 900°C )
[0040] Weigh 0.5g NH 4 Cl with 29mg KMnO 4 Put it in a mortar, mix the two evenly and grind them thoroughly for 10 minutes. Finally, add 50mg Ketjen carbon, mix well and set aside.
[0041] The mixture of the above three raw materials was placed in a ball mill jar and ground at a speed of 500 rpm for 1 h. Then put the above material in N 2 At 3°C min under atmosphere -1 The temperature was raised to 900°C, and kept at this temperature for 2 hours, and weighed after natural cooling, the obtained product was MnO x / NC catalyst.
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