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Nickel sulfide/carbon nano tube flexible composite thin-film material and preparation method and application thereof

A carbon nanotube thin film and carbon nanotube technology, applied in the field of material chemistry, can solve the problems that cannot meet the requirements of large-scale industrialization of flexible devices, and achieve the effects of low preparation cost, excellent electrochemical performance, and large industrial application potential

Inactive Publication Date: 2019-06-11
TIANJIN UNIV
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  • Abstract
  • Description
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Problems solved by technology

However, looking at the current status of such materials, most of them exist in the form of powder, which cannot meet the requirements of large-scale industrialization of flexible devices.

Method used

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  • Nickel sulfide/carbon nano tube flexible composite thin-film material and preparation method and application thereof
  • Nickel sulfide/carbon nano tube flexible composite thin-film material and preparation method and application thereof
  • Nickel sulfide/carbon nano tube flexible composite thin-film material and preparation method and application thereof

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Embodiment 1

[0045] (1) Gas phase pyrolysis method prepares silicon oxide / carbon nanotube composite film material: 1) weigh 24.03g ethanol, 0.432g ferrocene, 0.22g thiophene, wherein, ethanol is as the carbon source of this reaction, ferrocene As a catalyst, thiophene is used as a promoter, and the above-mentioned tetraethyl orthosilicate (TEOS) with a total mass fraction of 4% (~1.028g) is weighed as a silicon source for the reaction, and the above solution is continuously ultrasonically dispersed at 50°C for 60 minutes. After obtaining a relatively uniform dispersion, transfer it to a syringe as a precursor solution; 2) Completely seal the vertical CVD furnace, continuously feed 100 sccm of Ar, completely remove the residual air in the furnace, and raise the temperature of the vertical CVD furnace to 1150°C , keep warm for 5h; 3) After steps 1) and 2) are completed, turn off the Ar, and continuously inject 800 sccm of H2 into the furnace. Inject into the furnace; about 20 minutes after t...

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Abstract

The invention discloses a nickel sulfide / carbon nano tube flexible composite thin-film material and a preparation method and application thereof. The preparation method comprises the steps that urea and nickel nitrate are added into an aqueous solution of ethyl alcohol, then a silicon oxide / carbon nano tube thin film is added, soaked under normal temperature, taken out, placed in a dryer for to react for 10-15h under the temperature ranging from 100 DEG C to 110 DEG C, cooled naturally under room temperature, washed and dried, and then a silicate / carbon nano tube thin film is obtained for use;and deionized water and ethyl alcohol are mixed, Na<2>S is added to serve as a sulfur source, a solution with the concentration ranging from 1mg / mL to 2.5mg / mL is prepared, the silicate / carbon nano tube thin film obtained in the step 1 is soaked in the solution, subjected to a reaction for 10-15h under the condition of 150-200 DEG C, cooled naturally, washed and dried, and then the nickel sulfide / carbon nano tube flexible composite thin-film material is obtained. The nickel sulfide / carbon nano tube flexible composite thin-film material can be directly used as a sodium-ion battery cathode material.

Description

technical field [0001] The invention relates to the technical field of material chemistry, in particular to a nickel sulfide / carbon nanotube flexible composite film material and its preparation method and application. Background technique [0002] Globally, the demand for energy is increasing exponentially, so its sustainability has attracted worldwide attention. Rechargeable batteries could enable large-scale energy storage to meet growing energy demands. Commercial lithium-ion batteries (LIBs) are now widely used in power supplies for portable electronic devices and electric vehicles, however, since 1991, limited lithium resources and uneven distribution of lithium sources have kept the cost of lithium-ion batteries constantly increasing. increase, limiting the application of lithium-ion batteries. Sodium-ion batteries and lithium-ion batteries have similar working principles, but the reserves of sodium on the earth are more abundant, 420 times that of lithium. From the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/58H01M4/583H01M10/054
CPCY02E60/10
Inventor 侯峰卢竼漪郭文磊蒋小通
Owner TIANJIN UNIV
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