Preparation method of precious metal/graphene nanocomposite
A technology of nanocomposite materials and precious metals, applied in the field of preparation of carbon-based nanocomposite materials, can solve unsatisfactory problems and achieve the effects of simple implementation, uniform and controllable particle size, and easy industrial preparation
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Embodiment 1
[0022] Weigh 0.4258 g K 2 PtCl 4 Dissolved in a small amount of water, added to 400 ml of graphene oxide water dispersion with a concentration of 0.5 g / L, then added 0.1346 g of ammonium nitrate and 0.3435 g of glycine, stirred evenly and ultrasonicated for 30 minutes to obtain a uniform dispersion, heated and concentrated When it becomes thick, put it into a muffle furnace at 500°C to ignite. After the combustion is complete, cool it to room temperature, and wash the product with deionized water and ethanol until the conductivity of the washing liquid is lower than 10 μs / cm 2 After drying, the platinum / graphene nanocomposite material is obtained.
Embodiment 2
[0024] Weigh 0.3709 g NaAuCl 4 Dissolved in a small amount of water, added to 400 ml of graphene oxide water dispersion with a concentration of 0.5 g / L, then added 0.1346 g of ammonium nitrate and 0.2748 g of urea, stirred evenly and ultrasonicated for 30 minutes to obtain a uniform dispersion, heated and concentrated When it becomes thick, put it into a muffle furnace at 500°C to ignite. After the combustion is complete, cool it to room temperature, and wash the product with deionized water and ethanol until the conductivity of the washing liquid is lower than 10 μs / cm 2 After drying, the gold / graphene nanocomposite material is obtained.
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