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Preparation method of phosphorus-doped NiCoB/graphene/fabric supercapacitor electrode material

A technology of supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems that have not been seen in phosphorus-doped NiCoB/graphene/fabric supercapacitor electrode materials, etc., to improve the electrode performance, excellent binding force, mild reaction conditions

Active Publication Date: 2021-06-22
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no technical information on the preparation method of phosphorus-doped NiCoB / graphene / fabric supercapacitor electrode materials in the open literature. The technical scheme to be introduced below is produced under this background

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A) Prepare the base material of clean cotton fabric, pretreat the pure cotton fabric with a concentration of 1.5mol / L and as lye as the sodium hydroxide (NaOH) solution whose grammage is determined by the user or according to the needs of the user, specifically : Introduce the pure cotton fabric into the aforementioned sodium hydroxide solution (or add the sodium hydroxide solution to the pure cotton fabric), pretreat at 60°C for 60 minutes, and use deionization after the pretreatment is completed, that is, after the sodium hydroxide solution is completed Washing with water, drying at 80°C for 60 minutes after washing, to obtain a clean cotton fabric base material from which the stains and impurities on the surface of the pure cotton fabric have been removed;

[0024] B) Prepare cotton cloth / graphene oxide material, immerse the clean cotton fabric base material obtained in step A) in the graphene oxide suspension with a concentration of 2g / L, and control the immersion ti...

Embodiment 2

[0028] A) Prepare the base material of clean cotton fabric, pretreat the pure cotton fabric whose grammage is determined by the user or as the user needs with a sodium hydroxide (NaOH) solution with a concentration of 1mol / L and used as lye, specifically: Introduce the pure cotton fabric into the aforementioned sodium hydroxide solution (or add the sodium hydroxide solution to the pure cotton fabric), pretreat at 100°C for 30 minutes, and use deionized water after the pretreatment is completed, that is, the sodium hydroxide solution Carry out water washing, dry 55min at 85 ℃ again after washing, obtain the clean cotton fabric base material that has removed the stain and impurity on the pure cotton fabric surface;

[0029]B) To prepare cotton cloth / graphene oxide material, immerse the clean cotton fabric base material obtained in step A) in a graphene oxide suspension with a concentration of 0.8g / L, and control the immersion time to 60min, and after the immersion is completed, p...

Embodiment 3

[0033] A) Prepare the base material of clean cotton fabric, pretreat the pure cotton fabric whose grammage is determined by the user or as required by the user with a sodium hydroxide (NaOH) solution with a concentration of 0.6mol / L and used as lye, specifically : Introduce the pure cotton fabric into the aforementioned sodium hydroxide solution (or add the sodium hydroxide solution to the pure cotton fabric), pretreat at 75°C for 40 minutes, and use deionization after the pretreatment is completed, that is, after the sodium hydroxide solution is completed. Wash with water, and then dry at 100°C for 30 minutes after washing to obtain a clean cotton fabric base material from which stains and impurities on the surface of the pure cotton fabric have been removed;

[0034] B) Prepare cotton cloth / graphene oxide material, immerse the clean cotton fabric base material obtained by step A) in a graphene oxide suspension with a concentration of 1g / L, and control the immersion time to 40...

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Abstract

The invention discloses a preparation method of a phosphorus-doped NiCoB / graphene / fabric supercapacitor electrode material, and belongs to the technical field of supercapacitor electrode material preparation. The method comprises the following steps of performing alkali liquor pretreatment on a pure cotton fabric, washing with water after the treatment is completed, and drying; soaking the obtained clean cotton fabric substrate material in the graphene oxide suspension liquid, drying after soaking is completed, wherein the soaking and drying operations are alternately conducted for multiple times; immersing the obtained cotton cloth / graphene oxide material into a boron-containing alkaline solution, stirring, then cleaning with water, and finally drying; and dipping the obtained cotton cloth / graphene composite material in a precursor solution containing nickel and cobalt, then adding a strong reducing agent for reduction reaction, and after the reaction is finished, drying to obtain the phosphorus-doped NiCoB / graphene / fabric supercapacitor electrode material. The technological process is simple, no harsh technological elements exist, the reaction conditions are mild, and the requirements of being applied to super capacitors and wearable products are met.

Description

technical field [0001] The invention belongs to the technical field of preparation of supercapacitor electrode materials, and in particular relates to a method for preparing phosphorus-doped NiCoB / graphene / fabric supercapacitor electrode materials. Background technique [0002] The aforementioned supercapacitor is a new type of electrochemical energy storage device between traditional capacitors and batteries, because of its high energy density, fast charge and discharge speed, long cycle life, good cycle stability, and environmental friendliness. Therefore, it has attracted the attention and attention of the industry and is considered to be an important choice for future power sources such as rechargeable batteries and various energy storage devices. Especially with the development of the global economy and the rapid progress of industrial technology, energy issues have become a hot issue of common concern in the world today. The development of renewable resource conversion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/32H01G11/86
CPCH01G11/86H01G11/32H01G11/30Y02E60/13
Inventor 李涛王梦陶璐璐王薇
Owner CHANGSHU INSTITUTE OF TECHNOLOGY