Method for loading titania microflowers on shaped carbon material

A technology of titanium dioxide and carbon materials, applied to the surface loading of carbon materials, in the field of loading titanium dioxide micron flowers on the surface of formed carbon materials, it can solve the problems of hydrothermal reaction liquid adsorption residue, uneven titanium dioxide film, difficult to control thickness, etc., to reduce solid The effect of liquid interfacial tension, easy recycling and controllable thickness

Inactive Publication Date: 2018-01-12
ZHEJIANG UNIV
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this method is directly applied to shaped carbon materials, the following problems will occur: First, the surface of the unpretreated shaped carbon material exhibits certain hydrophobic properties, which makes it difficult for titanium dioxide to grow on the surface of the shaped carbon material, which eventually leads to the Titanium dioxide films have problems such as unevenness, easy peeling, difficult to control thickness, and irregular shape; secondly, the surface

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
  • Method for loading titania microflowers on shaped carbon material
  • Method for loading titania microflowers on shaped carbon material
  • Method for loading titania microflowers on shaped carbon material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

Specific Example 1

[0032] Preparation of titanium dioxide micro-flower electrode on graphite plate:

[0033] The high-temperature pyrolytic graphite board is polished with P400 sandpaper, P1500 sandpaper and 0.05μm aluminum powder in sequence until it is smooth, and then sonicated in acetone, ethanol, and deionized water for 10 minutes, and then dried for use. Pour 20mL deionized water slowly into 10mL ethanol and stir for 5min; slowly pour the mixed solution of ethanol and water into 30mL concentrated hydrochloric acid and stir for 5min; add 1mL tetrabutyl titanate dropwise to ethanol, water and concentrated hydrochloric acid. In the mixed solution, stir vigorously at the same time until the solution is clear, and a hydrothermal reaction solution is obtained. Lean the washed graphite plate on the wall of a 100 mL hydrothermal kettle at 45°, pour 60 mL of the prepared hydrothermal reaction solution to immerse the graphite plate, and ultrasonic for 20 min. Seal the hydrothermal ...

Example Embodiment

Specific Example 2

[0035] Use hydrothermal reaction solutions with different ethanol ratios to prepare ink plate-loaded titanium dioxide micro-flower electrodes:

[0036] The high-temperature pyrolytic graphite board is polished with P400 sandpaper, P1500 sandpaper and 0.05μm aluminum powder in sequence until it is smooth, and then sonicated in acetone, ethanol, and deionized water for 10 minutes, and then dried for use. 5, 10, 15, 20, and 30 mL of ethanol were slowly added to 25, 20, 15, 10, and 0 mL of deionized water respectively, and stirred for 5 minutes to obtain mixed solutions (or monomers) of ethanol and water in different proportions. Pour the mixed solution (or monomer) of ethanol and water slowly into 30mL concentrated hydrochloric acid and stir for 5min; add 1mL tetrabutyl titanate dropwise to the mixed solution while stirring vigorously until the solution is clear to obtain a hydrothermal reaction liquid . Lean the washed graphite plate against the wall of a 100 m...

Example Embodiment

Specific Example 3

[0038] The preparation method of the titanium dioxide nanoflower-coated carbon material of this embodiment is the same as that of specific example 1. The specific parameters are: graphite rods are used as the base material, followed by sonication in acetone, ethanol, and deionized water for 10 minutes, and placed at an angle of 30° In a 100mL hydrothermal kettle, pour a mixed solution of 30mL concentrated hydrochloric acid, 10mL deionized water, 20mL ethanol and 2mL tetrabutyl titanate to immerse the graphite rod, sonicate for 20min, seal the hydrothermal kettle, and keep it at 140℃ for 2h , Cool to room temperature, take out the sample, rinse with deionized water 4 times, soak in deionized water at room temperature for 20 minutes, and then dry at 120°C and protected from light for 2 hours, and heat the dried sample at 550°C for 0.5 h. Cool to room temperature to obtain graphite rods coated with titanium dioxide micro-flowers.

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
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a carbon material surface loading technology and aims to provide a method of loading titania microflowers on a shaped carbon material. The method comprises the following steps: placing the washed shaped carbon material obliquely and immersing in a hydrothermal reaction liquid and then sonicating for 5-20min; sealing the hydrothermal autoclave and keeping the reaction at 140-180 DEG C for 2-5h; cooling to the room temperature, taking out the carbon material; washing with deionized water for 4 to 8 times, immersing in deionized water for 20min at the room temperature, and then drying for 2h at 120 DEG C and dark conditions; performing heat preservation on the dried carbon material at 450 to 550 DEG C for 0. 5 to 2h, cooling to the room temperature and obtaining the titania microflowers coated carbon material. The titania microflowers prepared by the invention has the advantages that the distribution is dense and uniform, the morphology is complete, under xenon lamp irradiation, a significant photoelectric response exists; the thickness of the titania film can be adjusted by controlling the ratio of ethanol and deionized water in the hydrothermal reaction liquid; hydrothermal method is simple, the cost is low, the energy consumption is low, the film formation is stable and the method is suitable for mass production.

Description

technical field [0001] The invention relates to a carbon material surface loading technology, in particular to a method for loading titanium dioxide micron flowers on the surface of a shaped carbon material. The material can be used in rechargeable batteries, photocatalysis, electrocatalysis, microbial fuel cells, solar cells, supercapacitors, etc., and belongs to the fields of composite material preparation, new energy and sewage treatment. Background technique [0002] Energy crisis and environmental pollution are two major problems to be solved in modern society. It is necessary to develop clean and renewable energy and repair the damaged environment through the development of new energy and environmental materials. Titanium dioxide has always been a hot spot in the field of energy and environmental materials. It can be applied to many fields such as photocatalysis, electrocatalysis, microbial fuel cells, rechargeable batteries, solar cells, and supercapacitors. [0003]...

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): C04B41/87D06M11/46D21H19/38B01J21/06H01G11/32H01G11/46H01G11/86H01M4/90H01L31/0224C01G23/053B82Y40/00D06M101/40
CPCY02E60/50
Inventor 成少安李超超
Owner ZHEJIANG 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