Preparation method and application of nanowire-like nickel-based complex electrode material

A technology of electrode materials and nanowires, which is applied in the field of preparation of nanowire-shaped nickel-based complex electrode materials, to achieve the effects of simple experimental operation, stable rate characteristics, and high specific capacitance

Inactive Publication Date: 2019-06-18
BENGBU COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no relevant reports on the use of nanowire-shaped nickel-based complexes in supercapacitors.

Method used

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  • Preparation method and application of nanowire-like nickel-based complex electrode material
  • Preparation method and application of nanowire-like nickel-based complex electrode material
  • Preparation method and application of nanowire-like nickel-based complex electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 A nanowire-shaped nickel-based complex electrode material

[0035] The preparation method is as follows: weigh 2 mmol of nickel acetate and 0.4 g of nitrilotriacetic acid and dissolve them in 7.5 ml of deionized water, add 7.5 ml of isopropanol into the above solution and stir for 30 minutes, transfer the above mixed solution to a In a reaction kettle lined with vinyl fluoride, heat at an oven temperature of 180°C for 24h, cool naturally to room temperature, centrifuge the reaction product and wash it with deionized water and absolute ethanol for 8 times, and then dry it at 40°C for 12h to obtain It has nanowire-like nickel-based complex electrode materials.

[0036]Mix the nickel-based complex electrode material obtained above with the conductive agent acetylene black and the binder PTFE at a mass ratio of 7.5:1.5:1, and uniformly disperse in absolute ethanol to form a slurry, and apply the slurry evenly on an area of ​​1cm 2 On the nickel foam substrate, th...

Embodiment 2

[0042] Example 2 A nanowire-shaped nickel-based complex electrode material

[0043] Its preparation method is: weigh 1mmol of nickel nitrate and 0.01g of nitrilotriacetic acid dissolved in 12ml of deionized water, measure 3ml of isopropanol, add it to the above solution and stir for 30min to obtain a mixed solution, transfer the above mixed solution to a In a reaction kettle lined with tetrafluoroethylene, heat at an oven temperature of 150°C for 6h, cool naturally to room temperature, centrifuge the reaction product, wash with deionized water and absolute ethanol 8 times, and then dry at 40°C After 12 hours, the nanowire-shaped nickel-based complex electrode material was obtained.

Embodiment 3

[0044] Example 3 A nanowire-shaped nickel-based complex electrode material

[0045] The preparation method is as follows: weigh 4 mmol of nickel sulfate and 0.6 g of nitrilotriacetic acid and dissolve them in 9 ml of deionized water, add 6 ml of isopropanol into the above solution and stir for 30 minutes, transfer the above mixed solution to a tank with polytetrafluoroethylene In a lined reactor, heat at an oven temperature of 150°C for 24h, cool naturally to room temperature, centrifuge the reaction product, wash with deionized water and absolute ethanol for 8 times, and then dry at 40°C for 12h to obtain Nanowire-shaped nickel-based complex electrode material.

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PUM

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Abstract

The invention discloses a preparation method and an application of a nanowire-like nickel-based complex electrode material. The preparation method comprises the specific steps of mixing bivalent inorganic nickel salt, nitrilotriacetic acid, deionized water and isopropanol; carrying out full stirring; and transferring a mixture into a reaction kettle for reaction to obtain the nanowire-like nickel-based complex electrode material with a one-dimensional nanowire structure. Under hydrothermal conditions, the nitrilotriacetic acid and nickel ions adsorbed on the surface of the nitrilotriacetic acid are coordinated to form a one-dimensional nanowire-like nickel-based complex; and the nanowire-like nickel-based complex electrode material prepared with the method is uniform in property and singlein morphology, can enlarge the effective contact area and shorten the electron transmission distance, is applied to a supercapacitor electrode material, and shows relatively high specific capacitanceand rate performance.

Description

technical field [0001] The invention belongs to the technical field of supercapacitor electrode materials, and in particular relates to a preparation method and application of a nanowire-shaped nickel-based complex electrode material. Background technique [0002] With the continuous consumption of non-renewable petroleum fuels, the ensuing environmental pollution has attracted unprecedented attention. Therefore, the development of a new type of high-efficiency and environmentally friendly electrochemical energy storage device to store energy is in today's society that advocates sustainable development. appears to be particularly important. Among energy storage devices, supercapacitors (electrochemical capacitors) have been applied and developed for nearly 40 years. Due to their high power density, long cycle life, short charging time, and high energy efficiency, they are widely used in the consumer electronics industry, new Distribution grid, pure (hybrid) electric vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/24H01G11/30H01G11/32H01G11/86
CPCY02E60/13
Inventor 冯超吕长鹏吴中张现峰王传虎
Owner BENGBU COLLEGE
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