Preparation method of graphene-loaded copper nanoparticle

[0024] Weigh 10ml of the prepared saturated aqueous solution of copper nitrate and copper acetate salt with a measuring cylinder, add them into 0.5g of graphene oxide obtained after freeze-drying, ultrasonicate for 1h, and then magnetically stir at room temperature for 12h. After filtering and vacuum drying for 12 hours, a brown cake-like product, that is, a graphene-loaded copper salt product, was obtained. Fully grind the brown cake-like product, weigh the two products with a mass of 1 g in a quartz boat, put them into a tube furnace to set the temperature, and pass in an inert gas protection, and heat up and roast for 3 hours. In this experiment, the composition of substances in the product was investigated when the roasting temperature was 400°C, 450°C, and 500°C.

[0025] Using XRD, the samples after roasting were characterized:

[0026] figure 1 The XRD spectrum of the sample drawn after the test of copper nitrate and graphene oxide baked at 400°C-500°C,

[0027] fi...

[0030] Weigh 5 ml of the prepared saturated aqueous solution of copper nitrate and copper salt with a measuring cylinder, add it to 0.5 g of graphene oxide obtained after freeze-drying, ultrasonicate for 1 h, and magnetically stir for 12 h at room temperature. After filtering and vacuum drying for 12 hours, a brown cake-like product, that is, a graphene-loaded copper salt product, was obtained. Fully grind the brown cake-like product, weigh 1 g of the product in a quartz boat, put it into a tube furnace to set the temperature, and pass in an inert gas protection, and heat up and roast for 3 hours. In this experiment, the distribution and size of copper nanoparticles were investigated when copper nitrate was used as a copper salt precursor and graphene oxide was fired at 400°C, 450°C, and 500°C, respectively.

[0031] Using SEM, characterize the product after roasting:

[0032] image 3 It is the SEM picture obtained after the copper nitrate and graphene oxide are roasted at ...

[0034] Weigh 5 ml of the prepared saturated aqueous solution of copper acetate salt with a measuring cylinder, add it into 0.5 g of graphene oxide obtained after freeze-drying, ultrasonicate for 1 h, and magnetically stir at room temperature for 12 h. After filtering and vacuum drying for 12 hours, a brown cake-like product, that is, a graphene-loaded copper salt product, was obtained. Fully grind the brown cake-like product, weigh 1 g of the product in a quartz boat, put it into a tube furnace to set the temperature, and pass in an inert gas protection, and heat up and roast for 3 hours. In this experiment, the distribution and size of copper nanoparticles obtained by calcination of copper acetate as a copper salt precursor and graphene oxide at 400°C, 450°C, and 500°C were investigated.

[0035] Using SEM, characterize the product after roasting:

[0036] Figure 4 It is the SEM picture obtained after the copper acetate and graphene oxide are roasted at different roasting ...