Preparation method and application of transition metal and sulfur-nitrogen co-doped macroporous carbon electrocatalyst
A transition metal and electrocatalyst technology, which is applied to fuel cell type half cells and primary cell type half cells, circuits, electrical components, etc., can solve the problems of high price and rare precious metals, and achieve low price and simple preparation method. , improve the effect of electrocatalytic activity
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Embodiment 1
[0028] A preparation method of cobalt and sulfur nitrogen co-doped macroporous carbon electrocatalyst, specifically as follows:
[0029] (1) Add 75.0 mg of cobalt chloride hexahydrate and 100.0 mg of D-glucosamine hydrochloride into 30.0 mL of deionized water, and magnetically stir for 2 hours to obtain a dispersion;
[0030] (2) 100.0 mg of thiourea, 3.0 g of sodium chloride and 50.0 mg of graphene were added to the dispersion and magnetically stirred for 2 hours to obtain a mixed material; the thiourea was simultaneously used as a sulfur source and a nitrogen source;
[0031] (3) Stir the resulting mixed material in an oil bath at 80°C for 1 hour to remove deionized water, then put it in a vacuum drying oven and dry it at 60°C for 2 hours, cool to room temperature after drying, and then Grinding to obtain fine particles;
[0032] (4) Under the protection of an inert gas, put the ground fine particles into a quartz boat, place them in a tube furnace, raise the furnace temper...
Embodiment 2
[0034] A preparation method of a macroporous carbon electrocatalyst co-doped with iron and sulfur and nitrogen, specifically as follows:
[0035] (1) Add 100.0 mg of ferric chloride hexahydrate and 200.0 mg of L-citrulline into 30.0 mL of deionized water, and magnetically stir for 3 hours to obtain a dispersion;
[0036](2) 200.0 mg of thiourea, 4.0 g of potassium chloride and 100.0 mg of graphene were added to the dispersion, and magnetically stirred for 5 hours to obtain a mixed material; the thiourea was simultaneously used as a sulfur source and a nitrogen source;
[0037] (3) Stir the resulting mixed material in an oil bath at 60°C for 2 hours to remove deionized water, then put it in a vacuum drying oven and dry it at 80°C for 1 hour, cool to room temperature after drying, and then Grinding to obtain fine particles;
[0038] (4) Under the protection of an inert gas, put the ground fine particles into a quartz boat, place them in a tube furnace, raise the furnace tempera...
Embodiment 3
[0040] A preparation method of cobalt and sulfur nitrogen co-doped macroporous carbon electrocatalyst, specifically as follows:
[0041] (1) Add 225.0 mg of nickel chloride hexahydrate and 300.0 mg of L-cystine into 30.0 mL of deionized water, and magnetically stir for 1 hour to obtain a dispersion;
[0042] (2) 300.0 mg of thiourea, 6.0 g of sodium sulfate and 150.0 mg of graphene were added to the dispersion, and magnetically stirred for 6 hours to obtain a mixed material; the thiourea was simultaneously used as a sulfur source and a nitrogen source;
[0043] (3) Stir the resulting mixed material in an oil bath at 90°C for 1 hour to remove deionized water, then put it in a vacuum drying oven and dry it at 70°C for 2 hours, cool to room temperature after drying, and then Grinding to obtain fine particles;
[0044] (4) Under the protection of an inert gas, put the ground fine particles into a quartz boat, place them in a tube furnace, raise the furnace temperature to 600°C at...
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