Aqueous-phase one-step preparation method for one-dimensional gold/silver heterojunction nanometer materials
A technology of nanomaterials and heterojunctions, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to achieve the effect of environmental protection and simple steps
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Embodiment 1
[0034] Preparation of one-dimensional gold / silver heterojunction nanomaterials, the steps are as follows:
[0035] (1) Add cetyltrimethylammonium chloride, polyvinylpyrrolidone, chloroauric acid and silver nitrate into a glass container, then add water, stir evenly to obtain a reaction solution, and in the reaction solution, cetyltrimethylammonium The concentration of methyl ammonium chloride is 0.2mol / L, the concentration of polyvinylpyrrolidone is 0.7wt%, the concentration of chloroauric acid is 2 mmol / L, and the concentration of silver nitrate is 2 mmol / L;
[0036] (2) Transfer the above reaction solution into a polytetrafluoroethylene liner, and then put the liner into the reaction kettle. After sealing the reaction kettle, charge nitrogen gas until the pressure in the kettle is 1.2MPa;
[0037] (3) adding the reaction kettle to an oil bath with a temperature of 210°C for 24 hours of reaction, during the reaction, the pressure gauge shows that the pressure in the kettle i...
Embodiment 2
[0041] Preparation of one-dimensional gold / silver heterojunction nanomaterials, the steps are as follows:
[0042] (1) Add cetyltrimethylammonium chloride, polyvinylpyrrolidone, chloroauric acid and silver nitrate into a glass container, then add water, stir evenly to obtain a reaction solution, and in the reaction solution, cetyltrimethylammonium The concentration of methyl ammonium chloride is 0.2mol / L, the concentration of polyvinylpyrrolidone is 0.7wt%, the concentration of chloroauric acid is 2 mmol / L, and the concentration of silver nitrate is 2 mmol / L;
[0043] (2) Transfer the above reaction solution into a polytetrafluoroethylene liner, and then put the liner into the reaction kettle. After sealing the reaction kettle, fill it with nitrogen until the pressure in the kettle is 0.6MPa;
[0044] (3) adding the reaction kettle to an oil bath with a temperature of 210°C for 24 hours of reaction, during the reaction, the pressure gauge showed that the pressure inside the k...
Embodiment 3
[0047] Preparation of one-dimensional gold / silver heterojunction nanomaterials, the steps are as follows:
[0048] (1) Add cetyltrimethylammonium chloride, polyvinylpyrrolidone, chloroauric acid and silver nitrate into a glass container, then add water, stir evenly to obtain a reaction solution, and in the reaction solution, cetyltrimethylammonium The concentration of methyl ammonium chloride is 0.2mol / L, the concentration of polyvinylpyrrolidone is 0.7wt%, the concentration of chloroauric acid is 2 mmol / L, and the concentration of silver nitrate is 2 mmol / L;
[0049] (2) Transfer the above reaction solution into a polytetrafluoroethylene liner, and then put the liner into the reaction kettle. After sealing the reaction kettle, charge nitrogen gas until the pressure in the kettle is 0.8MPa;
[0050] (3) Adding the reaction kettle to an oil bath with a temperature of 210°C for 24 hours of reaction, during the reaction, the pressure gauge shows that the pressure inside the kett...
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