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Foamed nickel-based NiCo2O4/MoS2 composite electrode material and preparation method thereof

A composite electrode and nickel foam technology, which is used in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors to achieve the effects of short reaction time, reduced energy consumption and reaction cost, and improved electrical conductivity

Pending Publication Date: 2017-11-03
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Ni 3 S 4 / MoS 2 , Ni(OH) 2 / MoS 2 etc., however, so far no MoS 2 with NiCo 2 o 4 Preparation and Properties of Composite Electrode Materials Formed by Composite Loading on Nickel Foam

Method used

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  • Foamed nickel-based NiCo2O4/MoS2 composite electrode material and preparation method thereof
  • Foamed nickel-based NiCo2O4/MoS2 composite electrode material and preparation method thereof
  • Foamed nickel-based NiCo2O4/MoS2 composite electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Weigh 0.2792g of nickel nitrate hexahydrate, 0.5588g of cobalt nitrate hexahydrate, 0.0592g of ammonium fluoride, and 0.2882g of urea and dissolve them in 20ml of deionized water to obtain solution A.

[0028] Step 2: Transfer solution A to a 20ml reactor and immerse the treated nickel foam in the solution, place it in a constant temperature oven at 110°C, and react at this temperature for 4 hours, wait for natural cooling to room temperature, and wash Dry to obtain sample A1;

[0029] Step 3: Transfer sample A1 to a square crucible, place the crucible in a muffle furnace, raise the muffle furnace to 320°C, and keep it at this temperature for 2h to obtain NiCo loaded on nickel foam 2 o 4 (NCO) samples.

Embodiment 2

[0031] Step 1: Weigh 0.2792g of nickel nitrate hexahydrate, 0.5588g of cobalt nitrate hexahydrate, 0.0592g of ammonium fluoride, and 0.2882g of urea and dissolve them in 20ml of deionized water to obtain solution A.

[0032] Step 2: Transfer solution A to a 20ml reactor and immerse the treated nickel foam in the solution, place it in a constant temperature oven at 110°C, and react at this temperature for 4 hours, wait for natural cooling to room temperature, and wash Dry to get sample A 1 ;

[0033] Step 3: Put sample A 1 Transfer to a square crucible, place the crucible in a muffle furnace, raise the muffle furnace to 320°C, and keep it at this temperature for 2h to obtain NiCo loaded on nickel foam 2 o 4 sample B;

[0034] Step 4: Dissolve 0.0177g ammonium molybdate and 0.0152g thiourea in 40ml deionized water to obtain solution C;

[0035] Step 5: Transfer solution C to a 50ml reactor and immerse sample B in the solution, place the reactor in a constant temperature ove...

Embodiment 3

[0037] Step 1: Weigh 0.2792g of nickel nitrate hexahydrate, 0.5588g of cobalt nitrate hexahydrate, 0.0592g of ammonium fluoride, and 0.2882g of urea and dissolve them in 20ml of deionized water to obtain solution A.

[0038] Step 2: Transfer solution A to a 20ml reactor and immerse the treated nickel foam in the solution, place it in a constant temperature oven at 110°C, and react at this temperature for 4 hours, wait for natural cooling to room temperature, and wash Dry to get sample A 1 ;

[0039] Step 3: Put sample A 1 Transfer to a square crucible, place the crucible in a muffle furnace, raise the muffle furnace to 320°C, and keep it at this temperature for 2h to obtain NiCo loaded on nickel foam 2 o 4 sample B;

[0040] Step 4: Weigh 0.0353g of ammonium molybdate and 0.0304g of thiourea and dissolve them in 40ml of deionized water to obtain solution C;

[0041] Step 5: Transfer solution C to a 50ml reactor and immerse sample B in the solution, place the reactor in a ...

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Abstract

The invention belongs to the technical field of a composite electrode material. The NiCo2O4 / MoS2 composite electrode material is synthesized by a two-step hydrothermal method and can be used for researching performance of a two-electrode system. The NiCo2O4 / MoS2 composite electrode material is synthesized by the moderate two-step hydrothermal method, foamed nickel is used as a substrate, a synthesis material is directly grown on the foamed nickel, an adhesive is prevented from being used, the material impedance is reduced, and meanwhile, the material conductivity is improved to a great extent by the foamed nickel substrate; and generally, the conductivity of a transition metal oxide (NiCo2O4) is lower than that of a sulfide (MoS2), the cycle stability of the NiCo2O4 is also relatively low, while the theoretical capacity of NiCo2O4 is relatively high. Therefore, by combining the NiCo2O4 and the MoS2 to form the composite electrode material, the conductivity and the cycle stability of the material can be effectively improved, and high specific capacitance of the material is simultaneously maintained.

Description

technical field [0001] The invention belongs to the technical field of preparation of composite electrode materials. The composite electrode material of nickel cobaltate and molybdenum sulfide is synthesized by a two-step hydrothermal method, which can be used for performance research of a two-electrode system. Background technique [0002] Since the 21st century, the environmental pollution and energy crisis faced by human beings have become increasingly serious. The current design and research of new environmentally friendly energy storage devices with high power density is one of the important challenges to solve the current crisis. In recent years, supercapacitors are a class of high energy Power density, excellent cycle performance, and new electrochemical energy storage devices that can realize fast charging and discharging have great potential application value in many fields such as hybrid electric vehicles, industrial power, national defense and storage systems. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/46H01G11/28
CPCY02E60/13H01G11/86H01G11/28H01G11/30H01G11/46
Inventor 施伟东温石阳邵荣许伟
Owner JIANGSU UNIV
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