Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of biomass-based hollow carbon microtube/nickel-cobalt metal sulfide composite electrode material

A metal sulfide, carbon micro-tube technology, applied in hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing and other directions, to achieve excellent electrochemical performance, solve large-scale application difficulties, and high price advantages.

Active Publication Date: 2017-11-17
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No identical or similar prior art was found after searching

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 biomass-based hollow carbon microtube/nickel-cobalt metal sulfide composite electrode material
  • Preparation method of biomass-based hollow carbon microtube/nickel-cobalt metal sulfide composite electrode material
  • Preparation method of biomass-based hollow carbon microtube/nickel-cobalt metal sulfide composite electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Put 5g of biomass catkins in a tubular carbonization furnace, feed Ar as a protective gas, and control the gas flow rate at 5mlmin -1 g -1 , at 5°C min -1 The heating rate was increased to 1000°C, the temperature was kept constant for 2 hours, and the hollow carbon microtube was obtained by natural cooling to room temperature.

[0034] (2) Weigh the raw material nickel acetate Ni(CH 3 COO) 2 4H 2 O (1.2mmol), cobalt acetate Co (CH 3 COO) 2 4H 2 O (0.6mmol), thiourea (3.6mmol) is dissolved in 60ml dehydrated alcohol, makes mixed solution, then adds the mesoporous carbon microtube that 150mg above-mentioned step (1) makes in mixed solution, magnetically stirs 2h, well mixed.

[0035] (3) Transfer the above mixture to a polytetrafluoroethylene hydrothermal kettle with a volume of 100ml. The hydrothermal reaction kettle is placed in a blast oven, kept at a constant temperature of 180°C for 8h, then cooled to room temperature, and centrifuged at a speed of 9000rp...

Embodiment 2

[0037] (1) Put 5g of biomass catkins in a tubular carbonization furnace, feed Ar as a protective gas, and control the gas flow rate at 7mlmin -1 g -1 , at 7°C min -1 The heating rate was increased to 700°C, the temperature was kept constant for 1.5h, and then cooled to room temperature naturally to obtain hollow carbon microtubes.

[0038] (2) Weigh the raw material nickel acetate Ni(CH 3 COO) 2 4H 2 O (0.9mmol), cobalt acetate Co (CH 3 COO) 2 4H 2 O (0.9mmol), thiourea (4.5mmol) is dissolved in 80ml dehydrated alcohol, makes mixed solution, then adds the mesoporous carbon microtube that 200mg above-mentioned step (1) makes in mixed solution, magnetic stirring 3h, well mixed.

[0039] (3) Transfer the above mixture to a 100ml polytetrafluoroethylene hydrothermal kettle, place the hydrothermal reaction kettle in a blast oven, keep the temperature at 170°C for 10h, then cool to room temperature, centrifuge at 8000rpm for 20min, and then use Fully washed with water ethan...

Embodiment 3

[0041] (1) Put 8g of biomass catkins in a tubular carbonization furnace, 2 As a protective gas, the gas flow rate is controlled at 8mlmin -1 g -1 , at 10°C min -1 The heating rate was increased to 1000°C, the temperature was kept constant for 3 hours, and then cooled to room temperature naturally to obtain hollow carbon microtubes.

[0042] (2) Weigh the raw material nickel acetate Ni(CH 3 COO) 2 4H 2 O (0.6mmol), cobalt acetate Co (CH 3 COO) 2 4H 2 O (1.2mmol), thiourea (5.4mmol) is dissolved in 80ml ethylene glycol, makes mixed solution, then adds the mesoporous carbon microtube that 300mg above-mentioned step (1) makes in mixed solution, magnetic stirring 3h, well mixed.

[0043] (3) Transfer the above mixture to a 100ml polytetrafluoroethylene hydrothermal kettle, place the hydrothermal reaction kettle in a blast oven, keep the temperature at 200°C for 5h, then cool to room temperature, centrifuge at 7000rpm for 30min, and then use anhydrous Fully wash with ethan...

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

No PUM Login to View More

Abstract

A preparation method of a biomass-based hollow carbon microtube / nickel-cobalt metal sulfide composite electrode material is to select clean and dry biomass catkins, place them in a tubular carbonization furnace, feed inert gas as a protective gas, and then heat-treat at high temperature , to prepare hollow carbon microtubes; select nickel acetate, cobalt acetate and thiourea to be dissolved in an organic solvent to prepare a mixed solution, then add hollow carbon microtubes to the mixed solution, fully stir, and mix uniformly; carry out hydrothermal reaction, Cool naturally to room temperature after the reaction, centrifuge, filter, wash, and dry to prepare the hollow carbon microtube / nickel-cobalt metal sulfide composite electrode material. The invention has the advantages of high specific capacity and excellent rate characteristics.

Description

technical field [0001] The invention belongs to a method for preparing a capacitor electrode material, in particular to a method for preparing a biomass-based hollow carbon microtube / nickel-cobalt metal sulfide composite electrode material Background technique [0002] Biomass catkins are a common environmental pollutant, especially in late spring and early summer, causing serious pollution to the natural environment, bringing a lot of inconvenience to people's travel, and causing problems such as respiratory diseases and skin allergies. However, as a natural, recyclable, and cheap biomass waste, catkins have a microstructure of biomass fibers with high and high hollowness. Utilizing the unique microstructural properties of the biomass, subjecting it to high-temperature heat treatment under inert atmosphere conditions, hollow carbon microtubes with a hollowness of more than 80% can be prepared. Useful ways. [0003] Metal sulfides such as cobalt sulfide, nickel sulfide, et...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/32H01G11/86
CPCY02E60/13
Inventor 宋燕王凯
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com