Synthesis method for RGO@Pt (reduced graphene oxide@platinum) composite nanomaterial
A technology of composite nanomaterials and synthesis methods, which is applied in the field of synthesis of RGO@Pt composite nanomaterials, can solve the problems of uneven dispersion, difficulty in controlling the size of composite nanomaterials, and difficulty in RGO and Pt, and achieves a controllable and broad morphology. Application value and prospect, the effect of simple and easy synthesis method
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Embodiment 1
[0017] Weigh 1.08g of sodium acetate and add 10mL of water to dissolve it, adjust the pH value to 5 with glacial acetic acid, and add water to dilute to 20mL. Prepare 4 mL of a 0.5 mg / mL chitosan solution with the above-mentioned buffer solution as a solvent. Prepare the RGO solution with chitosan solution as the solvent, sonicate for 1 hour at room temperature, then add the prepared Pt suspension in the aqueous phase according to the molar ratio RGO:Pt=1:10, sonicate for 30 minutes, and centrifuge the obtained product to obtain corresponding products. The product of the present invention is characterized by electron transmission electron microscope (TEM) see figure 1 .
Embodiment 2
[0019] Weigh 1.08g of sodium acetate and add 10mL of water to dissolve, adjust the pH value to 5 with glacial acetic acid, add water to dilute to 20mL, and prepare 4mL of 0.5mg / mL chitosan solution with the above buffer solution as solvent. The RGO solution was prepared with chitosan solution as solvent, and ultrasonicated at room temperature for 1 h. Then, according to the molar ratio RGO:Pt=10:1, add the Pt suspension that has been dispersed in the aqueous phase, ultrasonically for 30 minutes, and centrifuge and wash the obtained product to obtain the corresponding product.
Embodiment 3
[0021] Weigh 1.08g of sodium acetate and add 10mL of water to dissolve, adjust the pH value to 5 with glacial acetic acid, add water to dilute to 20mL, prepare 4mL of 0.5mg / mL chitosan solution with the above buffer solution as solvent, and prepare RGO with chitosan solution as solvent Solution, ultrasonic at room temperature for 1h. Then according to the molar ratio RGO:Pt=5:1, add the Pt suspension that has been dispersed in the water phase, ultrasonic for 30min, and centrifuge the obtained product to obtain the corresponding product.
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