A kind of copper nano wire and preparation method thereof
A technology of copper nanowires and copper alloys, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of difficulty in large-scale preparation of copper nanowires, many pharmaceutical materials, and high equipment requirements , to achieve the effect of simple and feasible preparation method, low cost and increased cycle life
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Embodiment 1
[0033] A kind of copper nano wire, its preparation method comprises the following steps:
[0034] (1) In an environment with a dew point of -50°C and an oxygen content of 10ppm, the lithium metal is heated to 200°C, and the lithium metal is in a molten state at this time;
[0035] (2) Metal copper is added in the metallic lithium of molten state, heat preservation 10min, mix, form the alloy of melting; Wherein, the atomic number ratio of copper and metallic lithium is 1:100;
[0036] (3) cooling the molten alloy to room temperature within 5min to obtain lithium-copper alloy CuLi100;
[0037] (4) Lithium-copper alloy CuLi100 is put into water, and metal lithium is removed through redox reaction of lithium and water to obtain copper nanowires.
Embodiment 2
[0039] A kind of copper nano wire, its preparation method comprises the following steps:
[0040] (1) In an environment with a dew point of -60°C and an oxygen content of 2ppm, the metal lithium is heated to 200°C, and the metal lithium is in a molten state at this time;
[0041] (2) Metal copper is added in the metallic lithium of molten state, heat preservation 10min, mix, form the molten alloy; Wherein, the atomic number ratio of copper and metallic lithium is 1:60;
[0042] (3) cooling the molten alloy to room temperature within 5min to obtain lithium-copper alloy CuLi60;
[0043] (4) Lithium-copper alloy CuLi60 is put into water, and metal lithium is removed through redox reaction of lithium and water to obtain copper nanowires.
Embodiment 3
[0045] A kind of copper nano wire, its preparation method comprises the following steps:
[0046] (1) In an environment with a dew point of -70°C and an oxygen content of 1ppm, the lithium metal is heated to 800°C, and the lithium metal is in a molten state at this time;
[0047] (2) Metal copper is added in the metallic lithium of molten state, heat preservation 10min, mix, form the molten alloy; Wherein, the atomic number ratio of copper and metallic lithium is 2:3;
[0048] (3) cooling the molten alloy to room temperature within 5min to obtain lithium-copper alloy Cu2Li3;
[0049] (4) Lithium-copper alloy Cu2Li3 is put into water, and metal lithium is removed through redox reaction of lithium and water to obtain copper nanowires.
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