Preparation method of hierarchical pore nitrogen-oxygen-doped carbon super capacitor electrode material

A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid/electric double-layer capacitors, etc., can solve the problems of difficult structure regulation, difficult removal of template agents, complex synthesis process, etc., and achieves increased conductivity, simple, non-toxic and pollution-free cost. , the effect of improving hydrophilicity

Inactive Publication Date: 2018-04-13
HENAN NORMAL UNIV
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used methods for preparing hierarchically porous carbon materials are mainly soft template method and hard template method, but the hard template method faces problems such as long preparation peri

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of hierarchical pore nitrogen-oxygen-doped carbon super capacitor electrode material
  • Preparation method of hierarchical pore nitrogen-oxygen-doped carbon super capacitor electrode material
  • Preparation method of hierarchical pore nitrogen-oxygen-doped carbon super capacitor electrode material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] (1) Place 18 g of biomass carbon source egg yolk in a reaction vessel and let it stand for 12 hours at room temperature to obtain material A1;

[0035] (2) Transfer material A1 to a porcelain boat and place it in a tube furnace. Under nitrogen protection, it is heated from room temperature to 300 °C for 60 min and kept for 60 min, and then heated to 600 °C at a heating rate of 5 °C / min for carbonization treatment 2h, then naturally cooled to room temperature to obtain material B1;

[0036] (3) Mix 0.5g of material B1 and KOH solid in a reaction vessel in a mass ratio of 1:4, then add 5mL of deionized water, stir and mix well, stand at room temperature for 12 hours and then dry to obtain material C1;

[0037] (4) Transfer material C1 to a nickel boat and place it in a tube furnace, under nitrogen protection, heat up from room temperature to 700°C for 2 hours at a heating rate of 5°C / min, and then naturally cool down to room temperature to obtain mater...

Example Embodiment

[0039] Example 2

[0040] (1) Fully mix 18 g of biomass carbon source egg yolk and 1 g of trisodium thiocyanate in a reaction vessel, and let stand for 12 hours at room temperature to obtain material A2;

[0041](2) Transfer material A2 to a porcelain boat and place it in a tube furnace. Under nitrogen protection, it is heated from room temperature to 300 °C for 60 min and held for 60 min, and then heated to 600 °C at a heating rate of 5 °C / min for carbonization treatment 2h, then naturally cooled to room temperature to obtain material B2;

[0042] (3) Mix 0.5g of material B2 and KOH solid in the reaction vessel at a mass ratio of 1:4, then add 5mL of deionized water, stir and mix well, stand at room temperature for 12 hours and then dry to obtain material C2;

[0043] (4) Transfer material C2 to a nickel boat and place it in a tube furnace, under nitrogen protection, heat up from room temperature to 700°C for 2 hours at a heating rate of 5°C / min, and then naturally cool down...

Example Embodiment

[0045] Example 3

[0046] (1) Fully mix 18 g of biomass carbon source egg yolk and 2 g of trisodium thiocyanate in a reaction vessel, and let stand for 12 hours at room temperature to obtain material A3;

[0047] (2) Transfer material A3 to a porcelain boat and place it in a tube furnace. Under nitrogen protection, it is heated from room temperature to 300 °C for 60 min and held for 60 min, and then heated to 600 °C at a heating rate of 5 °C / min for carbonization treatment. 2h, then naturally cooled to room temperature to obtain material B3;

[0048] (3) Mix 0.5g of material B3 and KOH solid in the reaction vessel at a mass ratio of 1:4, then add 5mL of deionized water, stir and mix well, stand at room temperature for 12 hours and then dry to obtain material C3;

[0049] (4) Transfer material C3 to a nickel boat and place it in a tube furnace, under nitrogen protection, at a heating rate of 5°C / min from room temperature to 700°C for activation treatment for 2h, and then natur...

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
Login to view more

PUM

PropertyMeasurementUnit
Specific surface areaaaaaaaaaaa
Total pore volumeaaaaaaaaaa
Specific capacitanceaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of a hierarchical pore nitrogen-oxygen-doped carbon super capacitor electrode material. The method comprises steps of: fully mixing biomass carbon source egg yolk and trithiocyanuric acid trisodium salt in a reaction vessel to obtain a material A; keeping the material A at 300 DEG C for 60 minutes, and rising the temperature to 600-800 DEG C for carrying out carbonization treatment for 2 hours, and performing cooling to room temperature to obtain a material B; mixing the material B and a KOH solid in the reaction vessel, adding deionized water and performing full stirring and uniform mixing, performing standing at room temperature for 12 hours, and performing drying to obtain a material C; heating the material C to 600-800 DEG C for activating treatment for 2 hours, and performing cooling to room temperature to obtain a material D; transferring the material D to the reaction vessel, adding an acidic solution for immersion for 12 hours, performing washing with high-purity water until the pH of a filtrate is neutral, performing drying at 40-90 DEG C for 24 hours to obtain the hierarchical pore nitrogen-oxygen-doped carbon super capacitor electrode material. The hierarchical pore nitrogen-oxygen-doped carbon super capacitor electrode material prepared by the invention has a specific surface area of 3519.5 m2/g and a total pore volumeof 2.7 cm3/g, and contains a large number of micropores, mesopores and macropores.

Description

technical field [0001] The invention belongs to the technical field of preparation of supercapacitor electrode materials, and in particular relates to a preparation method of a multilevel porous nitrogen-oxygen-doped carbon supercapacitor electrode material. Background technique [0002] Since ancient times, energy has been an important driving force for national economic development and social progress. As a new type of energy storage device, supercapacitors are becoming more and more popular because of their high safety, high power density, fast charge and discharge performance, and good cycle performance, and the electrode material is a key factor determining the performance of supercapacitors. . Hierarchical porous carbon materials refer to the material structure containing a certain proportion of macropores, mesopores and micropores. Micropores play a necessary role in ion adsorption for the formation of the electric double layer effect. Mesopores shorten the ion tran...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01G11/86
CPCY02E60/13H01G11/86
Inventor 高书燕许鹤魏献军
Owner HENAN NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap