A kind of oligolayer pure graphene material and its preparation method and its application in electrocatalytic oxygen reduction reaction
A graphene and oligolayer technology, applied in the field of microwave low temperature rapid synthesis of graphene, can solve the problems of reagent corrosion or toxicity, high reaction process, cumbersome steps, etc., and achieve the effects of low cost, simple synthesis operation, and overcoming cumbersome steps.
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Embodiment 1
[0029] Measure 1.5mL of methanol reagent in a professional microwave reaction quartz tube, weigh 0.6g of metal Na, chop it and slowly add it to methanol, and take protective measures during the experiment. After the reaction between methanol and Na is complete, a white or light yellow reaction precursor is obtained, and then 0.5g of Na is added to the quartz tube 2 CO 3 powder.
[0030] According to the correct use method and precautions of microwave, place the above-mentioned quartz test tube in the microwave reactor for reaction, set the initial temperature to 35°C, the heating time to 10 min, the reaction temperature to 180°C, the holding time to 30min, and the cooling time to 180°C. for 10 min. The reacted product was vacuum-filtered and washed for later use.
[0031] The sample is further processed, the sample is placed in a vacuumed ampoule, in the muffle furnace, the heating rate is set at 2°C / min, and the heat treatment is at 400°C for 6h to obtain a graphene material...
Embodiment 2
[0033] Measure 1.0mL of methanol reagent in a microwave reaction professional quartz tube, weigh 0.6g of metal Na, chop it and slowly add it to methanol, and take protective measures during the experiment. After the reaction between methanol and Na is complete, a white or light yellow reaction precursor is obtained, and then 0.5g of Na is added to the quartz tube 2 CO 3 powder.
[0034] According to the correct use method and precautions of microwave, place the above-mentioned quartz test tube in the microwave reactor for reaction, set the initial temperature to 35°C, the heating time to 10 min, the reaction temperature to 180°C, the holding time to 30min, and the cooling time to 180°C. for 10 min. The reacted product was vacuum-filtered and washed for later use.
[0035] The sample is further processed, the sample is placed in a vacuumed ampoule, in the muffle furnace, the heating rate is set at 2°C / min, and the heat treatment is at 400°C for 6h to obtain a graphene materi...
Embodiment 3
[0037] Measure 2.0 mL of methanol reagent into a professional microwave reaction quartz tube, weigh 0.6 g of metal Na, chop it and slowly add it to methanol, and take protective measures during the experiment. After the reaction between methanol and Na is complete, a white or light yellow reaction precursor is obtained, and then 0.5g of Na is added to the quartz tube 2 CO 3 powder.
[0038] According to the correct use method and precautions of microwave, place the above-mentioned quartz test tube in the microwave reactor for reaction, set the initial temperature to 35°C, the heating time to 10 min, the reaction temperature to 180°C, the holding time to 30min, and the cooling time to 180°C. for 10 min. The reacted product was vacuum-filtered and washed for later use.
[0039] The sample is further processed, the sample is placed in a vacuumed ampoule, in the muffle furnace, the heating rate is set at 2°C / min, and the heat treatment is at 400°C for 6h to obtain a graphene ma...
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Abstract
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