A kind of conise2 nano-array material and preparation method thereof for supercapacitor

A technology of supercapacitors and nanoarrays, applied in nanotechnology for materials and surface science, hybrid/electric double layer capacitor manufacturing, hybrid capacitor electrodes, etc., can solve the problem of less research and application of supercapacitors, and achieve electrochemical Excellent stability, increased specific surface area, and high electrochemical performance
CN106098402BActive Publication Date: 2018-09-25ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2018-09-25

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Abstract

The invention discloses CoNiSe2 nanometer array material for a super capacitor and a preparation method thereof. The preparation method includes the steps of pretreating foam nickel to serve as a current collector of an electrode, growing precursor nanospheres on a foam nickel substrate, and selenizing the precursor to obtain the a CoNiSe2 nanometer array. The preparation method is simple in operation and low in cost, requires no complex equipment. Prepared CoNiSe2 is of a nanometer array structure, which is formed by CoNiSe2 nanometer rods and nanometer tubes. The diameters of the nanometer rods and nanometer tubes are 50-100nm, and the surfaces of the nanometer rods and nanometer tubes are porous structures. The prepared CoNiSe2 nanometer array material displays a high ratio capacity of 1338Fg<-1> under the current density of 1Ag<-1>, and has excellent multiplying power performance and excellent electrochemistry stability. The prepared CoNiSe2 nanometer array material is excellent electrode material for a super capacitor.
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Description

technical field

[0001] The invention relates to the field of supercapacitor electrode materials, in particular to a transition metal binary selenide electrode material for supercapacitors and a preparation method thereof. Background technique

[0002] With the rapid development of the global economy, the continuous consumption of fossil energy and the aggravation of environmental pollution, a series of worldwide problems of sustainable economic and social development in the future have attracted more and more attention from all countries in the world. In this context, people are actively looking for and developing various new clean energy sources, such as solar energy, wind energy, tidal energy, nuclear energy, biological energy, and so on. In the field of energy, it has become more and more important to develop a high-efficiency, low-cost, long-life, and environmentally friendly energy conversion and storage system. Among them, supercapacitor is a new type of energy storag...

Claims

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