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

A kind of method and application of preparing graphene oxide based on gelatin

A graphene and gelatin technology, applied in chemical instruments and methods, applications, inorganic chemistry, etc., can solve problems such as high cost, unsafe, complicated process, and achieve low cost, high mechanical strength, safe and controllable process Effect

Active Publication Date: 2021-07-16
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the technical problems of unsafe factors, complicated process flow and high cost in the method for preparing graphene oxide in the prior art, the present invention provides a method and application of preparing graphene oxide based on gelatin

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
  • A kind of method and application of preparing graphene oxide based on gelatin
  • A kind of method and application of preparing graphene oxide based on gelatin
  • A kind of method and application of preparing graphene oxide based on gelatin

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] Step 2, the preparation of graphene oxide

[0047] The gelatin matrix of fixed form obtained in step 1 is carried out high-temperature carbonization treatment under the protection of inert gas atmosphere, is cooled to room temperature, obtains graphene oxide (such as figure 1As shown, this process undergoes carbonization, dehydrogenation, and denitrogenation of gelatin, and finally obtains graphene oxide).

[0048] In the above technical scheme, in step 1, gelatin is an existing technology, which can be obtained commercially without special restrictions, and is preferably a mixture of one or more of edible gelatin, medicinal gelatin, photographic gelatin, and industrial gelatin; the solvent mainly Dissolving effect, on the basis of not changing the gelatin composition, as long as the solvent that can dissolve the gelatin effect can be realized, it is preferably a mixture of one or more of water, glycerol, formic acid or acetic acid; the dissolution condition is preferab...

Embodiment 1

[0061] Step 1. Weigh 2g of gelatin and add it to 5mL of water, heat and magnetically stir until the gelatin is completely dissolved, then filter to obtain a gelatin solution, transfer the gelatin solution to a glass mold with a 5mL inner cavity, and evaporate the solvent in an oven , directly demoulding to obtain a cube block gelatin matrix;

[0062] Step 2. Put the cubic block gelatin matrix obtained in Step 1 in a tube furnace, and calcine it under the protection of argon. First, gradually increase the temperature from room temperature to 200° C. at a rate of 5° C. / min, and keep the temperature constant for 1 hour. Then, Raise the temperature to 400°C at a rate of 5°C / min, hold the temperature for 1 hour, and finally raise the temperature to 600°C at a rate of 5°C / min, hold the temperature for 1 hour, and cool to room temperature to obtain graphene oxide.

Embodiment 2

[0064] Step 1. Weigh 3g of gelatin and add it to 5mL of formic acid. Stir magnetically until the gelatin is completely dissolved. After filtration, the gelatin solution is obtained. Transfer the gelatin solution to a cylindrical glass mold with a cylindrical cavity, evaporate the solvent in an oven, and remove the gelatin directly. The mold obtains the cylindrical gelatin matrix;

[0065] Step 2. Place the cylindrical gelatin matrix obtained in Step 1 in a tube furnace, and calcine it under the protection of argon. First, gradually increase the temperature from room temperature to 100°C at a rate of 2°C / min, and keep the temperature constant for 1h. Then, Raise the temperature to 500°C at a rate of 5°C / min, hold the temperature for 1 hour, and finally raise the temperature to 1000°C at a rate of 10°C / min, hold the temperature for 1 hour, and cool to room temperature to obtain graphene oxide.

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
tensile strength at breakaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method and application for preparing graphene oxide based on gelatin, and belongs to the technical field of graphene oxide. The method solves technical problems such as unsafe factors, complicated process flow and high cost in the method for preparing graphene oxide in the prior art. The preparation method of the present invention first dissolves the gelatin with a solvent, filters to remove impurities, and obtains a gelatin solution; then volatilizes the solvent in the gelatin solution to obtain a gelatin matrix in a fixed form; and then protects the gelatin matrix in a fixed form under the protection of an inert gas atmosphere Carry out high-temperature carbonization treatment, cool to room temperature, and obtain graphene oxide. The preparation method uses biomass as a precursor to prepare graphene oxide, and the raw material resources are abundant, cheap and easy to obtain, pollution-free and renewable, and at the same time, the method has safe and controllable process, simple process and easy operation.

Description

technical field [0001] The invention belongs to the technical field of graphene oxide, in particular to a method and application for preparing graphene oxide based on gelatin. Background technique [0002] Graphene is a two-dimensional carbon nanomaterial with excellent mechanical properties, electrical properties, thermal properties and optical properties, and has broad application prospects in transparent conductive films, field emission transistors, flexible electronic devices, sensors and supercapacitors. . As a derivative of graphene, graphene oxide has a similar structure. Due to the presence of oxygen-containing groups in its structure, graphene oxide has strong reactivity and good hydrophilicity, which can improve the mechanics, electricity and It has a more prominent effect on thermal performance. In the prior art, methods for preparing graphene oxide mainly include Hummers method, improved Hummers method, Brodie method, Staudenmaier method and the like. These me...

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): C01B32/198G01H11/08A61B5/02A61B5/00
CPCA61B5/02A61B5/6802A61B2562/02C01B32/198G01H11/08
Inventor 张强由爱梅
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - 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