A kind of three-dimensional metal nanowire and its preparation method

A metal nanowire and three-dimensional technology, which is applied in the field of nanomaterials, can solve the problems of low space utilization, nanoporous structures with large-scale structures, and difficulty in achieving highly ordered pore distribution, so as to alleviate structural collapse, The effect of increasing specific capacity and improving cycle stability
CN107309439BActive Publication Date: 2019-07-26SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
Publication Date
2019-07-26

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Abstract

The invention discloses a three-dimensional metal nanowire and a preparation method thereof. The preparation method includes the following steps: S1, preparing a metal ion solution with a concentration of 0.01-1 mol / L, adding a complexing agent and a nucleating agent, and adjusting the pH value to 10.0-13.5 through an alkali solution to prepare a solution; wherein, the The metal ions are magnetic metal ions or a mixture of magnetic metal ions and non-magnetic metal ions; S2, prepare a strong reductive reducing agent solution of 0.1 to 3 mol / L, adjust the alkali solution to adjust the pH value to 10.0 to 13.5, and prepare B solution ; S3, providing a reaction vessel, placing the activated substrate in the reaction vessel, fully mixing the A solution and the B solution in the reaction vessel, Under the condition of a 1T magnetic field, react for T time to prepare a reaction stock solution containing three-dimensional metal nanowires constructed of magnetic metal nanowires or alloy nanowires. The preparation method of the invention can prepare orderly arranged three-dimensional structure metal nanowires.
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Description

[0001] 【Technical field】

[0002] The invention relates to the technical field of nanomaterials, in particular to a three-dimensional metal nanowire and a preparation method thereof.

[0003] 【Background technique】

[0004] In recent years, the academic community has made a series of attempts to develop high-performance conductive framework materials. Common nickel metal porous materials are mainly prepared by template method or dealloying method, such as commonly used nickel foam, which has an open and disordered pore structure, and the pore size is usually several hundred microns. The dealloying method belongs to the top-down preparation method. The three-dimensional porous electrode obtained by this method has a small pore size. At the same time, it has limitations on the types of metals, and it is difficult to achieve a highly ordered pore distribution. Electroless nickel plating on electrospun fibers (diameter 300-400nm) can obtain nickel nanofiber nonwovens with smaller ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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