One-dimensional NiCo2S4 crystal array on surface of activated carbon fiber and preparation method of one-dimensional NiCo2S4 crystal array

A technology of activated carbon fiber and crystal array, applied in the field of one-dimensional NiCo2S4 crystal array and its preparation, to achieve good binding force and increase the specific surface area

Active Publication Date: 2014-10-08
INNER MONGOLIA PURUIFEN ENVIRONMENTAL SCI ANDTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

How to integrate one-dimensional NiCo with spinel structure 2 S 4 The method of growing crystal arrays on the surface of activated carbon fibers has not been reported

Method used

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  • One-dimensional NiCo2S4 crystal array on surface of activated carbon fiber and preparation method of one-dimensional NiCo2S4 crystal array
  • One-dimensional NiCo2S4 crystal array on surface of activated carbon fiber and preparation method of one-dimensional NiCo2S4 crystal array
  • One-dimensional NiCo2S4 crystal array on surface of activated carbon fiber and preparation method of one-dimensional NiCo2S4 crystal array

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Experimental program
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Effect test

Embodiment 1

[0027] 0.0124g nickel acetate tetrahydrate and 0.0249g cobalt acetate tetrahydrate are jointly dissolved in the 15.0mL mixed solvent system, and the total molar concentration of nickel ion and cobalt ion in the solution is 0.01 mole / liter; Diols are mixed at a volume ratio of 1:1. The ratio of the moles of nickel ions to cobalt ions is 1:2, and magnetic stirring is carried out for 15 minutes to obtain a homogeneous solution; 0.0219 g of ethylenediaminetetraacetic acid is added to the above solution, and the moles of ethylenediaminetetraacetic acid are 0.075 millimoles, which is equal to Half of the total moles of nickel ions and cobalt ions; stir to dissolve ethylenediaminetetraacetic acid completely; add 0.0571g of thiourea to the above solution, and the molar number of thiourea is 0.75 mmol, which is equal to the total moles of nickel ions and cobalt ions 5 times; stir to completely dissolve thiourea; immerse the activated carbon fiber in the above solution for 60 minutes. ...

Embodiment 2

[0030]0.0727g nickel nitrate hexahydrate and 0.1455g cobalt nitrate hexahydrate are jointly dissolved in the 15.0mL mixed solvent system, and the total molar concentration of nickel ion and cobalt ion in the solution is 0.05 mol / liter; Diols are mixed at a volume ratio of 1:1. The ratio of the moles of nickel ions to cobalt ions is 1:2, and magnetic stirring is used for 15 minutes to obtain a homogeneous solution; 0.1096 g of ethylenediaminetetraacetic acid is added to the above solution, and the moles of ethylenediaminetetraacetic acid are 0.375 millimoles, which is equal to Half of the total moles of nickel ions and cobalt ions; stir to dissolve ethylenediaminetetraacetic acid completely; add 0.4567g thiourea to the above solution, the molar number of thiourea is 6 millimoles, which is equal to the total molar ratio of nickel ions and cobalt ions 8 times; stir to completely dissolve thiourea; immerse the activated carbon fiber in the above solution for 60 minutes. The final...

Embodiment 3

[0033] 0.1188g nickel chloride hexahydrate and 0.2379g cobalt chloride hexahydrate are dissolved in 15.0mL mixed solvent system, the total molar concentration of nickel ion and cobalt ion in the solution is 0.1 mol / liter; mixed solvent system is made of deionized water It is mixed with ethylene glycol at a volume ratio of 1:1. The ratio of the moles of nickel ions to cobalt ions is 1:2, and magnetic stirring is carried out for 15 minutes to obtain a uniform solution; 0.2192 g of ethylenediaminetetraacetic acid is added to the above solution, and the moles of ethylenediaminetetraacetic acid are 0.75 millimoles, which is equal to Half of the total moles of nickel ions and cobalt ions; stir to dissolve ethylenediaminetetraacetic acid completely; add 1.1418g thiourea to the above solution, the molar number of thiourea is 15 millimoles, which is equal to the total moles of nickel ions and cobalt ions 10 times; stir to completely dissolve thiourea; immerse the activated carbon fiber...

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Abstract

The invention discloses a one-dimensional NiCo2S4 crystal array on the surface of an activated carbon fiber and a preparation method of the one-dimensional NiCo2S4 crystal array. The preparation method comprises the following steps: dissolving soluble nickel salt and soluble cobalt salt in water, wherein the mole number ratio of nickel ions to cobalt ions is 1:2; adding ethylene diamine tetraacetic acid of which the mole number is equal to one half of the total mole number of nickel and cobalt ions and thiourea of which the mole number is equal to 5-10 times of the total mole number of nickel and cobalt ions; immersing an activated carbon fiber in the solution and soaking; then carrying out hydrothermal treatment at the temperature range of 150-260 DEG C; washing hydrothermally treated activated carbon fiber and drying to obtain the one-dimensional NiCo2S4 crystal array growing on the surface of activated carbon fiber. Since the one-dimensional NiCo2S4 crystal array on the surface of the activated carbon fiber obtained by the invention has the directional growth structure, the specific surface area of the activated carbon fiber can be improved, and the one-dimensional NiCo2S4 crystal array is conducive to electronic transport and is an ideal catalyst material and electrode material.

Description

technical field [0001] The invention relates to a one-dimensional crystal material based on the surface of a substrate material and a preparation method thereof, in particular to a one-dimensional NiCo crystal on the surface of an activated carbon fiber 2 S 4 Crystal arrays and methods of making them. Background technique [0002] Activated carbon material is an amorphous carbon. In addition to carbon, the main components include elements such as oxygen and hydrogen. When activated carbon is activated, carbon structure defects will be generated, forming a typical porous structure, so the activated carbon material has a low packing density and a large specific surface area. In recent years, the application of activated carbon materials in supercapacitor electrode materials has attracted attention. The conductive activated carbon fiber opens a new research door for the binder-free electrode material. However, while carbon materials exhibit extremely stable electrochemical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/64C30B29/52C30B7/10B81C1/00
Inventor 金达莱汪丽娜王龙成王耐艳
Owner INNER MONGOLIA PURUIFEN ENVIRONMENTAL SCI ANDTECH
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