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A method for preparing nanomaterials with different dimensions based on the same metal iron ion

A technology of nanomaterials and the same metal, applied in the field of electrochemical materials, can solve the problems of low energy density of low-dimensional material electrodes, achieve excellent electrical properties, improve performance, reduce internal resistance and quality

Active Publication Date: 2020-06-02
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Supercapacitor is a new type of energy storage device, which has the advantages of good cycle stability, high power density, and wide applicable temperature range. Current electronic devices are limited by the choice of material structure and performance, and there are various limitations and defects. , the energy density of the low-dimensional material electrode used is low, which limits its application. Therefore, it is necessary to search for a method that can regulate the growth of different structures according to the needs, and give full play to the excellent performance of a certain material, so as to obtain regular structure, large specific surface area and quality. Lightweight composites critical to electronics development

Method used

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  • A method for preparing nanomaterials with different dimensions based on the same metal iron ion
  • A method for preparing nanomaterials with different dimensions based on the same metal iron ion
  • A method for preparing nanomaterials with different dimensions based on the same metal iron ion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1) Preparation of FeCo 2 S 4 nanowire array

[0042] Using deionized water as solvent, prepare 60mL reaction aqueous solution containing 0.6M Urea, 0.6MNH 4 F, 0.2M Co(Cl) 2 ·6H 2 O, 0.1M Fe(Cl) 2 ·6H 2 O. Ultrasonic the cleaned carbon cloth for 30 minutes in the above reaction aqueous solution to make its surface fully contact with the solution, then place it in a 100mL reaction kettle containing the above reaction solution, react at 120°C for 12h, and cool to room temperature. A light pink film was obtained on the surface of the carbon cloth, the sample was rinsed with deionized water, and iron-cobalt hydrate in the shape of nanowires was obtained after drying.

[0043] Prepare 60mL of 0.01M sodium sulfide nonahydrate aqueous solution, put the carbon cloth with iron cobalt hydrate obtained above into a 100mL reaction kettle containing sodium sulfide nonahydrate aqueous solution, react at 90°C for 10h, cool to room temperature, and A layer of black film was obta...

Embodiment 2

[0048] Prepare 60mL reaction solution containing 0.6M Urea, 0.6M NH 4 F, 0.2MCo(Cl) 2 ·6H 2 O, 0.2MFe(Cl) 2 ·6H 2 O, the solvent is 20ml of deionized water and 40ml of ethanol, put the cleaned carbon cloth into a 100mL reaction kettle containing the above reaction solution, and react at 200°C for 12h. After the reaction, cool to room temperature to obtain a light yellow film , rinse the sample with deionized water, and dry the iron-cobalt hydrate with nanosheet morphology.

[0049] Prepare 60mL of 0.01M sodium sulfide nonahydrate aqueous solution, put the carbon cloth with iron cobalt hydrate obtained above into a 100mL reaction kettle containing sodium sulfide nonahydrate aqueous solution, react at 90°C for 10h, cool to room temperature, and A layer of black film is obtained on the surface of carbon cloth, rinsed with deionized water, and dried to obtain FeCo 2 S 4 nanosheet structure. Such as Figure 5-6 As shown, it can be seen that FeCo 2 S 4 The nanosheets are e...

Embodiment 3

[0052] Using deionized water as solvent, prepare 60mL reaction aqueous solution containing 0.6M Urea, 0.6MNH 4 F, 0.2M Co(Cl) 2 ·6H 2 O, 0.1M Fe(Cl) 2 ·6H 2 O. Ultrasonic the cleaned carbon cloth for 30 min in the above reaction aqueous solution to make its surface fully contact with the solution, then place it in a 100mL reaction kettle containing the above reaction aqueous solution, react at 120°C for 12h, cool to room temperature, and place on carbon A layer of pale pink film was obtained on the surface of the cloth, and the sample was rinsed with deionized water. After drying, the above sample was put into 60mL reaction solution containing 0.6M Urea, 0.6M NH 4 F, 0.2MCo(Cl) 2 ·6H 2 O, 0.2M Fe(Cl) 2 ·6H 2 O, the solvent is 20ml of deionized water and 40ml of ethanol, and then placed in a 100mL reactor, reacted for 12h at 200°C, after the reaction, cooled to room temperature to obtain a darker black film than the sample in Example 1, deionized Rinse the sample with w...

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Abstract

The invention relates to a method for preparing nanomaterials with different dimensions based on the same kind of metal iron ions, and relates to the field of electrochemical materials. The method is characterized in that through proportioning metal salts with different concentrations and proportions, different reaction solvents and reaction conditions are regulated; the reaction time and temperature are controlled through a simple hydrothermal synthesis method; one-dimensional, two-dimensional and three-dimensional sulfide nanostructures of FeCo2S4 based on the metal iron ions are prepared on carbon cloth; the three types of structures are regular in morphology, relatively large in specific surface area and stable in performance, and can be applied to supercapacitors as working electrode materials, and excellent electrical properties are exhibited; a universal method for the preparation of sulfide multi-dimensional structural materials is provided.

Description

technical field [0001] The invention relates to the field of electrochemical materials, in particular to a method for preparing nanometer materials with different dimensions based on the same metal iron ion. Background technique [0002] Supercapacitor is a new type of energy storage device, which has the advantages of good cycle stability, high power density, and wide applicable temperature range. Current electronic devices are limited by the choice of material structure and performance, and there are various limitations and defects. , the energy density of the low-dimensional material electrode used is low, which limits its application. Therefore, it is necessary to search for a method that can regulate the growth of different structures according to the needs, and give full play to the excellent performance of a certain material, so as to obtain regular structure, large specific surface area and quality. Lightweight composite materials are critical to the development of e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G51/00H01G11/24H01G11/26H01G11/30H01G11/68H01G11/70H01G11/86
CPCC01G51/006C01P2002/72C01P2004/03C01P2004/16C01P2006/40H01G11/24H01G11/26H01G11/30H01G11/68H01G11/70H01G11/86Y02E60/13
Inventor 叶美丹赵鑫刘群
Owner XIAMEN UNIV
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