Cobalt nickel sulfide/cobaltous sulfide/carbon composite material and preparation and application thereof

A carbon composite material, cobalt-nickel sulfide technology, applied in nanotechnology for materials and surface science, hybrid/electric double-layer capacitor manufacturing, electrochemical generators, etc., can solve problems such as serious energy problems, and achieve excellent biological Compatibility, regular and uniform specific surface area, inhibition of structural collapse and fragmentation and the effect of agglomeration

Inactive Publication Date: 2018-06-15
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology, traditional energy has long been unable to meet people's growing actual needs, and energy problems are becoming more and more serious

Method used

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  • Cobalt nickel sulfide/cobaltous sulfide/carbon composite material and preparation and application thereof
  • Cobalt nickel sulfide/cobaltous sulfide/carbon composite material and preparation and application thereof
  • Cobalt nickel sulfide/cobaltous sulfide/carbon composite material and preparation and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A cobalt nickel sulfide / cobalt sulfide / carbon composite material comprises cobalt nickel sulfide / cobalt sulfide nanowires and a carbon layer coated on the cobalt nickel sulfide / cobalt sulfide nanowires.

[0036] The preparation method of described cobalt nickel sulfide / cobalt sulfide / carbon composite material is:

[0037] (1) Prepare the cobalt-nickel nanowire precursor by urea co-precipitation method. The specific implementation method includes: weighing 1.16g cobalt nitrate hexahydrate, 0.59g nickel nitrate hexahydrate, 0.84g urea, uniformly dissolved in 400mL deionized water, and After reacting at 100°C for 24 hours, the precipitated product was repeatedly washed with deionized water and dried to obtain a cobalt-nickel nanowire precursor for future use.

[0038](2) Take 400 mg of the above-mentioned cobalt-nickel precursor nanowires, add them to 200 mL of deionized water, and stir continuously for 1 hour with an experimental magnetic stirring table to obtain a unifor...

Embodiment 2

[0050] (1) The nickel-cobalt nanowire precursor was prepared by urea co-precipitation method. The specific implementation method included: weighing 1.16g cobalt nitrate hexahydrate, 0.59g nickel nitrate hexahydrate, 0.84g urea, uniformly dissolved in 400mL deionized water, and placed in an oven Reaction at 100°C for 24 hours, the product precipitate was repeatedly washed with deionized water for several times, and dried to obtain the cobalt-nickel nanowire precursor, which was set aside;

[0051] (2) Take 400 mg of the above-mentioned cobalt-nickel precursor nanowires, add them to 200 mL of deionized water, and continuously stir for 1 hour with an experimental magnetic stirring table to obtain a uniform dispersion, which is the cobalt-nickel nanowire precursor dispersion;

[0052] (3) Take by weighing 315.2mg buffer reagent Tris hydrochloride, add it to the above-mentioned dispersion liquid, then configure NaOH with a pH of 13, add the above-mentioned dispersion liquid dropwise...

Embodiment 3

[0056] (1) The nickel-cobalt nanowire precursor was prepared by urea co-precipitation method. The specific implementation method included: weighing 1.16g cobalt nitrate hexahydrate, 0.59g nickel nitrate hexahydrate, 0.84g urea, uniformly dissolved in 400mL deionized water, and placed in an oven Reaction at 100°C for 24 hours, the product precipitate was repeatedly washed with deionized water for several times, and dried to obtain the cobalt-nickel nanowire precursor, which was set aside;

[0057] (2) Take 200 mg of the above-mentioned cobalt-nickel precursor nanowires, add them to 200 mL of deionized water, and continuously stir for 1 hour with an experimental magnetic stirring table to obtain a uniform dispersion, which is the cobalt-nickel nanowire precursor dispersion;

[0058] (3) Take by weighing 315.2mg buffer reagent Tris hydrochloride, add it to the above-mentioned dispersion liquid, then configure NaOH with a pH of 13, add the above-mentioned dispersion liquid dropwise...

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Abstract

The invention provides a cobalt nickel sulfide / cobaltous sulfide / carbon composite material and preparation and application thereof. The cobalt nickel sulfide / cobaltous sulfide / carbon composite material is characterized by comprising cobalt nickel sulfide / cobaltous sulfide nanowires and a carbon layer coated outside the cobalt nickel sulfide / cobaltous sulfide nanowires. The preparation process is simple, easy to operate, green, non-toxic and environmentally-friendly, and the prepared cobalt nickel sulfide / cobaltous sulfide / carbon composite material is stable in structure, uniform in shape and good in dispersion. The prepared cobalt nickel sulfide / cobaltous sulfide / carbon composite material can become an ideal electrode material of new energy devices such as high-performance supercapacitorsand lithium ion batteries.

Description

technical field [0001] The invention belongs to the field of transition metal sulfide / carbon composite material and its preparation, in particular to a cobalt-nickel sulfide / cobalt sulfide / carbon composite material and its preparation method and application. Background technique [0002] With the development of science and technology, traditional energy has long been unable to meet people's growing actual needs, and energy problems have become more and more serious. Therefore, the development of new renewable energy or the design of efficient energy conversion devices and materials has become an urgent problem to be solved. For example, energy conversion technologies such as lithium-ion batteries, supercapacitors, and solar cells increasingly require new electrode materials. Generally speaking, there are three main categories of lithium-ion battery electrode materials: carbon materials, conductive polymers, and transition metal sulfides. Among them, transition metal sulfide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/58H01M4/62H01M10/0525H01G11/24H01G11/30H01G11/86B82Y30/00
CPCB82Y30/00H01G11/24H01G11/30H01G11/86H01M4/366H01M4/5815H01M4/625H01M10/0525H01M2004/021H01M2004/027Y02E60/10
Inventor 张超周俊刘天西
Owner DONGHUA UNIV
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