Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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

Active Publication Date: 2018-09-25
ZHEJIANG UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Transition metal selenides have been applied in catalysis, photolysis of water, and fuel-sensitized solar cells, but there are very few researches and applications in supercapacitors.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of conise2 nano-array material and preparation method thereof for supercapacitor
  • A kind of conise2 nano-array material and preparation method thereof for supercapacitor
  • A kind of conise2 nano-array material and preparation method thereof for supercapacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Cut the nickel foam into a size of 18mm in diameter and place it in a 3 mol L -1 In the hydrochloric acid solution, ultrasonically react for 30 minutes to remove the NiO layer on the surface, and wash the treated nickel foam with deionized water and ethanol until neutral.

[0037] (2) Weigh 0.125mmol of nickel nitrate hexahydrate and 0.125mmol of cobalt nitrate hexahydrate as raw materials and dissolve them in 40 mL of isopropanol, then add 8mL of glycerin and stir for 30min to obtain a precursor solution.

[0038] (3) Pour the above mixed solution into a polytetrafluoroethylene hydrothermal reaction kettle, place the nickel foam treated by (1) in it, put the reaction kettle into a drying oven, react at 180°C for 6h, and then cool Reactor to room temperature, collect foamed nickel, rinse with ethanol and deionized water respectively, and dry, the product attached to the foamed nickel is CoNiSe 2 Precursor nanospheres.

[0039] (4) Weigh 1mmol of selenium powder an...

Embodiment 2

[0042] (1) Cut the nickel foam into a diameter of 18mm, and then put it in a 3 mol L -1 In the hydrochloric acid solution, ultrasonically react for 30 minutes to remove the NiO layer on the surface, and wash the treated nickel foam with deionized water and ethanol until neutral.

[0043] (2) Weigh 0.125mmol of nickel nitrate hexahydrate and 0.25mmol of cobalt nitrate hexahydrate as raw materials and dissolve them in 40mL of isopropanol, then add 8mL of glycerol and stir for 30min to obtain a precursor solution.

[0044] (3) Pour the above mixed solution into a polytetrafluoroethylene hydrothermal reaction kettle, place the nickel foam treated by (1) in it, put the reaction kettle into a drying oven, react at 180°C for 6h, and then cool Reactor to room temperature, collect foamed nickel, rinse with ethanol and deionized water respectively, and dry, the product attached to the foamed nickel is CoNiSe 2 Precursor nanospheres.

[0045] (4) Weigh 1mmol of selenium powder and 2mmo...

Embodiment 3

[0048] (1) Cut the nickel foam into a diameter of 18mm, and then put it in a 3 mol L -1 In the hydrochloric acid solution, ultrasonically react for 30 minutes to remove the NiO layer on the surface, and wash the treated nickel foam with deionized water and ethanol until neutral.

[0049] (2) Weigh 0.125mmol of nickel nitrate hexahydrate and 0.125mmol of cobalt nitrate hexahydrate as raw materials and dissolve them in 40 mL of isopropanol, then add 8mL of glycerin and stir for 30min to obtain a precursor solution.

[0050] (3) Pour the above mixed solution into a polytetrafluoroethylene hydrothermal reaction kettle, place the nickel foam treated by (1) in it, put the reaction kettle into a drying oven, react at 160°C for 6h, and then cool Reactor to room temperature, collect foamed nickel, rinse with ethanol and deionized water respectively, and dry, the product attached to the foamed nickel is CoNiSe 2 Precursor nanospheres.

[0051] (4) Weigh 1mmol of selenium powder and 2m...

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
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

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.

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

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/26B82Y30/00H01G11/86
CPCY02E60/13
Inventor 吕建国杨杰
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com