Iron-nitrogen doped oxygen reduction carbon catalyst with ordered hierarchical holes and preparation method of iron-nitrogen doped oxygen reduction carbon catalyst with ordered hierarchical holes
A carbon catalyst, nitrogen doping technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of low catalytic performance of catalysts, high cost, difficulty in large-scale promotion, and poor stability. To achieve the effect of promoting electron transfer and mass transfer, high-efficiency oxygen reduction reaction catalytic performance, and good stability
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[0032] Example 1
[0033] Step 1): In a three-necked flask, add 80ml of water and heat to 75°C, then add 7.0g of styrene under vigorous stirring, in another 10ml centrifuge tube, add 0.024g NaOH and 0.024g Na 2 CO 3 Dissolve in 5mL water and contain 0.03gK 2 S 2 O 8 Add 5ml of aqueous solution to the previous solution, let nitrogen gas into the liquid surface for 10 minutes, keep the temperature at 75℃ and react for 12 hours to synthesize a 300nm monodisperse polystyrene ball. After the reaction is completed, return to room temperature, perform suction filtration, and pump into a filter cake. .
[0034] Step 2): Add 8.15g (0.0274mol) of Zn(NO 3 ) 2 ·6H 2 O, 6.75g (0.0822mol) 2-methylimidazole and 0.045g (0.000274mol) FeCl 3 ·6H 2 O was dissolved in 45 ml of methanol solution. Then, a whole piece of PS template was immersed in the above-mentioned solution for 1 hour, and further treated with vacuum degassing for 10 minutes, so that all the interstitial spaces between the 3D colloida...
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[0035] Example 2
[0036] Step 1): In a three-necked flask, add 80ml of water and heat to 75°C, then add 7.0g of styrene under vigorous stirring, in another 10ml centrifuge tube, add 0.024g NaOH and 0.024g Na 2 CO 3 Dissolve in 5mL water and contain 0.03gK 2 S 2 O 8 Add 5ml of aqueous solution to the previous solution, let nitrogen gas into the liquid surface for 10 minutes, keep the temperature at 75℃ and react for 12 hours to synthesize a 300nm monodisperse polystyrene ball. After the reaction is completed, return to room temperature, perform suction filtration, and pump into a filter cake. .
[0037] Step 2): Add 8.15g (0.0274mol) of Zn(NO 3 ) 2 ·6H 2 O, 6.75g (0.0822mol) 2-methylimidazole and 0.067g (0.000411mol) FeCl 3 ·6H 2 O was dissolved in 45 mL of methanol solution. Then, a whole piece of PS template was immersed in the above-mentioned solution for 1 hour, and further treated with vacuum degassing for 10 minutes, so that all the interstitial spaces between the 3D colloida...
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