Preparation method of a cellulose nanofiber/silk fibroin-based porous nitrogen-doped 2D carbon nanosheet electrode material

A nanofiber, silk fibroin technology, applied in the manufacture of hybrid/electric double layer capacitors, battery electrodes, nanotechnology, etc., can solve problems such as unfavorable material capacity and unfavorable size, achieve low cost, improve cycle life, and facilitate scale the effect of
CN107331865BInactive Publication Date: 2019-12-13ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
Publication Date
2019-12-13
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method for preparing a cellulose nanofiber / silk fibroin-based porous nitrogen-doped 2D carbon nanosheet electrode material, which belongs to the technical field of carbon electrode materials. The preparation method of the cellulose nanofiber / silk fibroin-based porous nitrogen-doped 2D carbon nanosheet electrode material of the present invention comprises the following steps: uniformly mixing the cellulose nanofiber suspension with the silk fibroin solution to obtain a composite suspension; Treat in hydrochloric acid vapor for 1-12h to make cellulose nanofiber / silk fibroin composite hydrogel; freeze in liquid nitrogen for 5-60min and freeze-dry to make composite aerogel; under protective atmosphere, 700-1300 Carbonization at ℃ for 1‑8h, and then activated, that is. The cellulose nanofiber / silk fibroin-based porous nitrogen-doped 2D carbon nanosheet electrode material prepared by the method of the present invention has the characteristics of large size, good flexibility, and porosity, and also has the microstructure of 2D graphene morphology shape.
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Description

technical field

[0001] The invention relates to a porous nitrogen-doped carbon nanosheet electrode material, in particular to a preparation method of a cellulose nanofiber / silk fibroin-based porous nitrogen-doped 2D carbon nanosheet electrode material, which belongs to the technical field of carbon electrode materials. Background technique

[0002] At present, carbon nanomaterials are widely used as electrode materials in new energy storage devices such as supercapacitors, lithium-ion batteries, and nickel-metal hydride batteries. Carbon nanomaterials, as electrode materials for energy storage devices, generally have good electrical conductivity, electrochemical stability, and good processing performance. However, with the development of new energy technologies and industries, energy storage devices have higher and higher requirements for electrode materials. For example, the development of the electric vehicle industry and the new energy storage industry has put forward hi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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