Check patentability & draft patents in minutes with Patsnap Eureka AI!

N-doped three-dimensional foam graphene-titanium dioxide microbial fuel cell electrode material, preparation method and application thereof

A technology of fuel cell electrodes and foamed graphene, which is applied in biochemical fuel cells, battery electrodes, circuits, etc., can solve the problems of industrial application limitations, processing speed and economic problems that have not been completely resolved, so as to improve conductivity and avoid catalytic activity The effect of reducing, high catalytic activity and stability

Active Publication Date: 2021-06-08
SHANGHAI INST OF TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, this technology is still being improved at home and abroad, limited by the performance of the electrode material and the preparation process, the processing speed and economic problems have not been completely resolved, so the industrial application of this method is limited

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
  • N-doped three-dimensional foam graphene-titanium dioxide microbial fuel cell electrode material, preparation method and application thereof
  • N-doped three-dimensional foam graphene-titanium dioxide microbial fuel cell electrode material, preparation method and application thereof
  • N-doped three-dimensional foam graphene-titanium dioxide microbial fuel cell electrode material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] N heterogeneous three-dimensional foamed graphene-TiO used to degrade azo dyes in this example 2 The microbial fuel cell electrode material is prepared by the following method:

[0052] Weigh 1.8g of cetyltrimethylammonium bromide and dissolve it in 200mL of absolute ethanol, add 1mL of NaCl solution (0.1mol / L) and 12mL of tetrabutyl titanate (TBOT) into the solvent, and stir at room temperature for 30min , the solution was left to stand for 18h, washed with absolute ethanol and deionized water, and the obtained solid was dried in an oven at 80°C for 12h to obtain TiO 2 Microsphere precursors. TiO 2 Pour the microsphere precursor into the ethanol solution (absolute ethanol: deionized water = 2:1), then pour it into a 100mL hydrothermal reaction kettle for hydrothermal reaction at 160°C for 16h, wash with ethanol after cooling to room temperature, and wash with ethanol at 80°C Dry and grind. Put the dried powder into a muffle furnace for calcination at 450°C for 3h (...

Embodiment 2

[0061] This example is used to degrade the N-doped three-dimensional foamed graphene-TiO of azo dyes 2 Microbial fuel cell electrode material, the molar ratio of C atoms and N atoms of carbon source and nitrogen source in the preparation process is 300:1, and is prepared by the following method:

[0062] TiO in this embodiment 2 Microsphere preparation method is consistent with embodiment 1;

[0063] Cut the nickel foam with a thickness of 3mm into a sheet with a size of 3×5cm, polish the cut nickel foam with sandpaper, and soak it in 15% dilute HCl solution for 10 minutes. Then ultrasonic cleaning was performed with deionized water and absolute ethanol for 5 min to remove the metal oxide layer and oil stains on the surface of the nickel foam, and vacuum-dried at 60° C. for 6 h to obtain the base material of the graphene foam. Weigh 18.016g of glucose and 0.0602g of urea (the molar ratio of C atoms to N atoms is 300:1) and add them into deionized water to prepare a precursor...

Embodiment 3

[0068] N heterogeneous three-dimensional foamed graphene-TiO used to degrade azo dyes in this example 2 Microbial fuel cell electrode material, the molar ratio of C atoms and N atoms of carbon source and nitrogen source in the preparation process is 100:1, and is prepared by the following method:

[0069] TiO in this example 2 Microsphere preparation method is consistent with embodiment 1;

[0070] Cut the nickel foam with a thickness of 3mm into a sheet with a size of 3×5cm, polish the cut nickel foam with sandpaper, and soak it in 15% dilute HCl solution for 10 minutes. Then ultrasonic cleaning was performed with deionized water and absolute ethanol for 5 min to remove the metal oxide layer and oil stains on the surface of the nickel foam, and vacuum-dried at 60° C. for 6 h to obtain the base material of the graphene foam. Weigh 18.016g of glucose and 0.1811g of urea (the molar ratio of C atoms to N atoms is 100:1) and add them into deionized water to prepare a precursor s...

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

The invention relates to an N-doped three-dimensional foam graphene-titanium dioxide microbial fuel cell electrode material, a preparation method and application thereof. The electrode material comprises foam graphene with a three-dimensional structure and nano TiO2 loaded on the foam graphene; the preparation method comprises the following steps of: firstly performing hydrothermal carbon coating on a foamed nickel substrate with the foam graphene, then coating the foam graphene with titanium dioxide microspheres, and finally performing calcining to obtain the N-doped three-dimensional foam graphene-TiO2 electrode material. Compared with the prior art, the graphene pi conjugate electrons are delocalized, the conductivity of the foam graphene is improved, the surface of the foam graphene is coated with the TiO2 nano-microspheres to serve as an electrocatalytic active part, catalytic performance reduction caused by overpotential corrosion of the surface of the graphene is avoided, and the obtained electrode catalyst shows high catalytic activity and stability.

Description

technical field [0001] The invention relates to the field of electrode material preparation and catalytic application, in particular to a kind of N heterogeneous three-dimensional foamed graphene-TiO 2 Microbial fuel cell electrode material, preparation method and application. Background technique [0002] The outstanding problems of dye industry wastewater are chromaticity and the removal of refractory organic substances. At present, there are mainly physical and chemical methods, oxidation methods, biochemical methods and electrochemical methods to treat dye wastewater at home and abroad. With the development of industry and cities, the types and quantities of organic substances that are difficult to biodegrade are increasing day by day. Electrocatalytic oxidation technology has high hopes for the water treatment industry because of its efficient degradation ability for organic substances. At present, this technology is still being improved at home and abroad, limited by...

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): H01M4/90H01M4/88H01M8/16
CPCH01M4/9016H01M4/9083H01M4/8828H01M8/16Y02E60/50
Inventor 郑晓涵谢大祥陈东辉
Owner SHANGHAI INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com