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Amorphous cobalt sulfide nanowire and preparation method thereof

A cobalt sulfide nano and amorphous technology, applied in cobalt sulfide, chemical instruments and methods, nano carbon and other directions, to achieve the effects of controllable preparation process, good application prospects and low cost of raw materials

Active Publication Date: 2020-07-03
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As far as the literature survey is concerned, there is no report on the synthesis of amorphous cobalt sulfide nanowires@carbon nanoframe confined structure nanorods by hydrothermal / solvothermal method

Method used

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  • Amorphous cobalt sulfide nanowire and preparation method thereof
  • Amorphous cobalt sulfide nanowire and preparation method thereof
  • Amorphous cobalt sulfide nanowire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In a typical synthesis, 0.1 mmol of cobalt acetate tetrahydrate [Co(CH 3 COO) 2 4H 2 O] and 10mmol polyvinylpyrrolidone (K-30) were added to absolute ethanol, and after complete dissolution, a mixed solution was formed.

[0034] Then the above mixed solution was ultrasonically stirred for 30 minutes and then transferred to a polytetrafluoroethylene reactor for hydrothermal treatment. The hydrothermal temperature was kept at 90 ° C and the hydrothermal time was 2 hours. Then the powder generated by the reaction was collected by centrifugation and washed with absolute ethanol Washing, drying in vacuum for at least 12 hours to obtain nano-cobalt rod-shaped precursors, the particle diameter of these nano-cobalt rod-shaped precursors is between 100nm and 1000nm.

[0035] Then above-mentioned nano-cobalt rod-shaped precursor and L-cysteine ​​and glucose powder are added respectively in dehydrated alcohol, after completely dissolving, be made into mixed solution, wherein, af...

Embodiment 2

[0038] In a typical synthesis, 0.1 mmol of cobalt acetate tetrahydrate [Co(CH 3 COO) 2 4H 2 O] and 20mmol polyvinylpyrrolidone (K-30) were added to absolute ethanol, and after complete dissolution, a mixed solution was formed.

[0039] Then the above mixed solution was ultrasonically stirred for 30 minutes and then transferred to a polytetrafluoroethylene reactor for hydrothermal treatment. The hydrothermal temperature was kept at 100 ° C and the hydrothermal time was 4 hours. Then the powder generated by the reaction was collected by centrifugation and washed with absolute ethanol. Washing, drying in vacuum for at least 12 hours to obtain nano-cobalt rod-shaped precursors, the particle diameter of these nano-cobalt rod-shaped precursors is between 100nm and 1000nm.

[0040] Then above-mentioned nano-cobalt rod-shaped precursor and L-cysteine ​​and glucose powder are added respectively in dehydrated alcohol, after completely dissolving, be made into mixed solution, wherein, af...

Embodiment 3

[0043] In a typical synthesis, 0.1 mmol of cobalt acetate tetrahydrate [Co(CH 3 COO) 2 4H 2 O] and 20mmol polyvinylpyrrolidone (K-30) were added to absolute ethanol, and after complete dissolution, a mixed solution was formed.

[0044] Then the above mixed solution was ultrasonically stirred for 30 minutes and then transferred to a polytetrafluoroethylene reactor for hydrothermal treatment. The hydrothermal temperature was kept at 120 ° C and the hydrothermal time was 3 hours. Then the powder generated by the reaction was collected by centrifugation and washed with absolute ethanol Washing, drying in vacuum for at least 12 hours to obtain nano-cobalt rod-shaped precursors, the particle diameter of these nano-cobalt rod-shaped precursors is between 100nm and 1000nm.

[0045] Then above-mentioned nano-cobalt rod-shaped precursor and L-cysteine ​​and glucose powder are added respectively in dehydrated alcohol, after completely dissolving, be made into mixed solution, wherein, a...

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Abstract

The invention discloses an amorphous cobalt sulfide nanowire and a preparation method thereof. The amorphous cobalt sulfide nanowire comprises a carbon nano frame confinement structure and an amorphous cobalt sulfide nanowire wire filled in the carbon nano frame confinement structure, according to the method, the amorphous cobalt sulfide nanowire can be simply and efficiently prepared in low cost,and the prepared amorphous cobalt sulfide nanowire has high conductivity and a large specific surface area and has good application prospects in the field of ion batteries.

Description

technical field [0001] The invention belongs to the technical field of functional nanometer materials, and in particular relates to an amorphous cobalt sulfide nanowire and a preparation method thereof. Background technique [0002] In order to maintain rapid economic development, today's society mainly relies on non-renewable resources such as coal and oil, but the continuous reduction of non-renewable resources will inevitably limit economic and social development more and more obviously, and the recycling of lithium-ion batteries can Reducing the demand for non-renewable energy is one of the best options to effectively alleviate this problem. [0003] In recent years, the success of commercialization of Li-ion batteries has attracted worldwide attention. Over the years, governments of various countries have invested a lot of manpower and material resources in research and development, which has effectively promoted the commercialization of lithium-ion batteries, but the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/00B82Y40/00C01B32/15B82Y30/00
CPCB82Y30/00B82Y40/00C01G51/30C01P2002/72C01P2004/03C01P2004/04C01P2004/16C01P2004/80C01B32/15
Inventor 于琪瑶王伟胡俊锁国权方岱宁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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