Method for synthesizing PdPt/graphene nano electrical catalyst in one step by microwave process
An electrocatalyst and graphene technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as long time and complexity, and achieve fast process, The effect of good electrocatalytic performance
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Embodiment 1
[0031] 1 mL of graphene oxide with a concentration of 2 mg / mL was ultrasonically dispersed in 50 mL of cetyltrimethylammonium bromide aqueous solution with a concentration of 25 mmol / L, and then 0.75 mL of chlorinated chloride with a concentration of 48 mmol / L was added Palladium solution and 0.5 mL of potassium chloroplatinite solution with a concentration of 24 mmol / L were mixed thoroughly and evenly. The pH of the mixed solution was adjusted to 9.0 with an aqueous sodium hydroxide solution. Add 0.402g of ascorbic acid and mix well. Transfer the solution to a microwave chemical reactor, connect it with condensed water, set the power to 200 W, and heat it in microwave for 4 minutes, take it out, cool it down to room temperature naturally, take out the sample and wash it centrifugally (washing with water and ethanol three times each), 60 o After C is dried, obtain the PdPt / graphene composite material, wherein the ratio of the amount of substance of Pd and Pt is 3:1. Observat...
Embodiment 2
[0033] 1 mL of graphene oxide with a concentration of 2 mg / mL was ultrasonically dispersed in 50 mL of cetyltrimethylammonium bromide aqueous solution with a concentration of 25 mmol / L, and then 0.5 mL of chlorinated chloride with a concentration of 48 mmol / L was added Palladium solution and 1 mL of potassium chloroplatinite solution with a concentration of 24 mmol / L were mixed thoroughly and evenly. The pH of the mixed solution was adjusted to 9.0 with an aqueous sodium hydroxide solution. Add 0.402g of ascorbic acid and mix well. Transfer the solution to a microwave chemical reactor, connect it with condensed water, set the power to 200 W, and heat it in microwave for 4 minutes, take it out, cool it down to room temperature naturally, take out the sample and wash it centrifugally (washing with water and ethanol three times each), 60 o After C drying, obtain the PdPt / graphene composite material, wherein the ratio of the amount of Pd to Pt is 1:1. According to transmission e...
Embodiment 3
[0035] 1 mL of graphene oxide with a concentration of 2 mg / mL was ultrasonically dispersed in 50 mL of cetyltrimethylammonium bromide aqueous solution with a concentration of 25 mmol / L, and then 0.25 mL of chloride with a concentration of 48 mmol / L was added Palladium solution and 1.5 mL potassium chloroplatinite solution with a concentration of 24 mmol / L were thoroughly mixed evenly. The pH of the mixed solution was adjusted to 9.0 with an aqueous sodium hydroxide solution. Add 0.402 g of ascorbic acid and mix well. Transfer the solution to a microwave chemical reactor, connect it with condensed water, set the power to 200 W, and heat it in microwave for 4 minutes, take it out, cool it down to room temperature naturally, take out the sample and wash it ultrasonically (washing with water and ethanol three times each), 60 o After C drying, a PdPt / graphene composite material is obtained, wherein the ratio of the amount of Pd to Pt is 1:3. According to transmission electron mic...
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