Method and device for preparing nickel-nanoparticle functionalized carbon nanotube
A technology of carbon nanotubes and nanoparticles, which is applied in the field of preparation of nickel (Ni) nanoparticle functionalized carbon nanotubes, can solve the problems of low product yield, inability to form large quantities of functionalized solutions, high reaction temperature, etc., and achieve The effect of high yield
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[0025] Using the above-mentioned preparation method and device, large-scale preparation can be realized, the output is high, and the reaction temperature is room temperature, which can be lower than 100°C.
[0026] The anode composed of the metal to be functionalized can be Ni, Cu, Fe, Sn and other metals.
[0027] Such as figure 1 As shown, the anode metal takes Ni as an example, under the action of an external electric field, the anode metal Ni will obtain electrons to form Ni ions, and react with NH in the solution 3 The molecules form a complex Ni[(NH 3 ) 6 ] 2+ , and subsequently, the Ni ion complex will be adsorbed at the defect site of the carbon nanotube in the solution. When the carbon nanotube forms a loop with the cathode electrode, the Ni ion complex will obtain electrons to generate Ni simple substance, nucleate at the defect site and grow as metallic Ni nanoparticles. With the increase of the reaction time, the metal nanoparticles will gradually grow up and ...
Embodiment 1
[0032] Preparation of single-walled carbon nanotubes functionalized with Ni nanoparticles.
[0033] use figure 1 The device described in, wherein the anode is Ni; the electrolyte components are a certain concentration of carbon nanotube solution (0.035mg / ml), surfactant (5mg / ml, sodium dodecylbenzenesulfonate) and 0.4mmol / ml NH 4 100ml of mixed solution composed of Cl solution.
[0034] At a temperature of 25 °C, the cathode and the anode composed of Ni to be functionalized were inserted into the electrolyte containing a certain concentration of carbon nanotube dispersion, and a working voltage of 3.2 V was applied to the cathode and anode, and at the same time Accompanied by stirring (25rpm). After 30 min of reaction, the carbon nanotubes in the electrolyte will be functionalized by Ni on the anode in the form of nanoparticles, thereby obtaining a carbon nanotube solution functionalized by metal nanoparticles.
[0035] figure 2 Shown is the SEM picture of the Ni nanopa...
Embodiment 2
[0037] Preparation of single-walled carbon nanotubes functionalized with Cu nanoparticles.
[0038] use figure 1 The device described in, wherein the anode is Cu; the electrolyte components are a certain concentration of carbon nanotube solution (0.035mg / ml), surfactant (5mg / ml, sodium dodecylbenzenesulfonate) and 0.4mmol / ml NH 4 100ml of mixed solution composed of Cl solution;
[0039] At a temperature of 25 °C, the cathode and the anode composed of Cu to be functionalized were inserted into the electrolyte containing a certain concentration of carbon nanotube dispersion, and a working voltage of 3.2 V was applied to the cathode and anode, and at the same time Accompanied by stirring (25rpm). After 60 min of reaction, the carbon nanotubes in the electrolyte will be functionalized by Cu on the anode in the form of nanoparticles, thereby obtaining a carbon nanotube solution functionalized by metal nanoparticles.
[0040] image 3 Shown are the SEM photo (left) and the EDS...
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