Pt-Cu2O coated Cu nanowire as well as preparation method and application thereof
A technology of nanowires and copper nanowires, which is applied to Pt-Cu2O-wrapped Cu nanowires and the fields of preparation and application thereof, can solve problems such as difficult preparation, achieve large specific surface area, good practical application value, and simple and easy preparation operation method. Effect
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Embodiment 1
[0030] Preparation of Pt-Cu 2 O wrapped Cu nanowires
[0031] Add 120 mg of copper nanowires and 200 mL of deionized water to a round-bottomed flask, react in a water bath at 70°C for 6 hours, then cool to room temperature, filter, wash the filter cake with absolute ethanol and distilled water several times, and dry it in vacuo. Cu 2 O is a nanowire with Cu as the core. Prepared Cu 2 60 mg of nanowires with O as the shell and Cu as the core are put into a small beaker, and 0.4 mL (mass fraction is 15%) of chloroplatinic acid solution is slowly added dropwise to the beaker. The solution changed from the previous light yellow to light blue, and the precipitate was separated by centrifugation, washed several times with absolute ethanol and deionized water, and dried to obtain Pt-Cu with a Pt-doped mass fraction of 2%. 2 O wrapped Cu nanowires.
[0032] Utilize scanning electron microscope (SEM), electronic energy spectrum analysis (EDS) to analyze and characterize the obtain...
Embodiment 2
[0034] Preparation of Pt-Cu 2 O wrapped Cu nanowires
[0035] Add 120 mg of copper nanowires and 200 mL of deionized water to a round-bottomed flask, react in a water bath at 70°C for 6 hours, then cool to room temperature, filter, wash the filter cake with absolute ethanol and distilled water several times, and dry it in vacuo. Cu 2 O is a nanowire with Cu as the core. Prepared Cu 2 60 mg of nanowires with O as the shell and Cu as the core are put into a small beaker, and 0.8 mL (mass fraction is 15%) of chloroplatinic acid solution is slowly added dropwise to the beaker. The solution changed from the previous light yellow to light blue, and the precipitate was separated by centrifugation, washed several times with absolute ethanol and deionized water, and dried to obtain Pt-Cu with a Pt-doped mass fraction of 4%. 2 O wrapped Cu nanowires.
Embodiment 3
[0037] Preparation of Pt-Cu 2 O wrapped Cu nanowires
[0038] Add 120 mg of copper nanowires and 200 mL of deionized water to a round-bottomed flask, react in a water bath at 70°C for 6 hours, then cool to room temperature, filter, wash the filter cake with absolute ethanol and distilled water several times, and dry it in vacuo. Cu 2 O is a nanowire with Cu as the core. Prepared Cu 2 60 mg of nanowires with O as the shell and Cu as the core are put into a small beaker, and 1 mL (mass fraction is 15%) of chloroplatinic acid solution is slowly added dropwise to the beaker. From the previous light yellow to light blue, the precipitate was separated by centrifugation, washed several times with absolute ethanol and deionized water, and dried to obtain Pt-Cu with a Pt-doped mass fraction of 5%. 2 O wrapped Cu nanowires.
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