Silver-copper nanoparticles and preparation method and application thereof
A nanoparticle, silver-copper technology, applied in application, nanotechnology, nanotechnology and other directions, can solve the problems of difficult to control the growth of shell metal, unbalanced proportion, and excessively fast growth of shell, so as to prevent copper from being oxidized, improve conductivity, cost reduction effect
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Embodiment 1
[0037] A preparation method of silver-copper nanoparticles, the steps are as follows:
[0038] Under a nitrogen atmosphere, heat tetradecane to 130°C and keep it warm for 30 minutes, then add 2mmol of copper acetate, 0.5mmol of silver acetate, 2mmol of oleic acid, 2mmol of oleylamine and 2mmol of tetradecane to 0.2L of tetradecane of 1,2-hexadecanediol to obtain a mixture.
[0039] Under an inert atmosphere, the mixture was heated to 200° C., stirred for 2 h, cooled to room temperature, and the reaction was terminated. Then, ethanol was added to form a precipitate, centrifuged, and the precipitate was washed several times with ethane and ethanol to obtain silver-copper nanoparticles.
[0040] The X-ray diffraction (XRD) figure of the silver-copper nanoparticle obtained in the present embodiment is as follows figure 1 As shown, the transmission electron microscope (TEM) image is shown in figure 2 shown.
[0041] The XRD pattern shows that the particles prepared in this exam...
Embodiment 2
[0044] A preparation method of silver-copper nanoparticles, the steps are as follows:
[0045] Under a nitrogen atmosphere, heat 1-octadecene to 130°C and keep it warm for 30 minutes, then add 2 mmol of copper acetate, 0.5 mmol of silver acetate, 2 mmol of oleic acid, and 2 mmol of oleylamine to 0.2 L of tetradecane And 2mmol of 1,2-hexadecanediol to obtain a mixture.
[0046] Under an inert atmosphere, the mixture was heated to 200° C., stirred for 2 h, cooled to room temperature, and the reaction was terminated. Then, ethanol was added to form a precipitate, centrifuged, and washed with ethane and ethanol several times to obtain silver-copper nanoparticles.
[0047] The X-ray diffraction (XRD) figure of the silver-copper nanoparticle obtained in the present embodiment is as follows image 3 As shown, the transmission electron microscope (TEM) image is shown in Figure 4 shown.
[0048] The XRD pattern shows that the particles prepared in this example contain silver and co...
Embodiment 3
[0050] A preparation method of silver-copper nanoparticles, the steps are as follows:
[0051] Under a nitrogen atmosphere, heat tetradecane to 130°C and keep it warm for 30 minutes, then add 1.5 mmol of copper acetate, 1 mmol of silver acetate, 2 mmol of oleic acid, 2 mmol of oleylamine and 2 mmol of tetradecane to 0.2 L of tetradecane. of 1,2-hexadecanediol to obtain a mixture.
[0052] Under an inert atmosphere, the mixture was heated to 200° C., stirred for 2 h, cooled to room temperature, and the reaction was terminated. Then, ethanol was added to form a precipitate, centrifuged, and washed with ethane and ethanol several times to obtain silver-copper nanoparticles.
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