CN114988394A - Method for preparing carbon nano tube by hydrothermal method - Google Patents
Method for preparing carbon nano tube by hydrothermal method Download PDFInfo
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- CN114988394A CN114988394A CN202210876227.7A CN202210876227A CN114988394A CN 114988394 A CN114988394 A CN 114988394A CN 202210876227 A CN202210876227 A CN 202210876227A CN 114988394 A CN114988394 A CN 114988394A
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- carbon nano
- graphene oxide
- nano tube
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/16—Preparation
- C01B32/166—Preparation in liquid phase
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/20—Nanotubes characterized by their properties
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
A method for preparing a carbon nano tube by a hydrothermal method belongs to the technical field of nano material preparation, and the preparation method comprises the steps of putting Graphene Oxide (GO) powder into deionized water, and obtaining a GO solution through ultrasound; dripping dilute hydrochloric acid into the GO solution to obtain an acidified GO solution; and then placing the acidified GO solution in a reaction kettle, and reacting at 200 ℃ for 2 hours to obtain the carbon nano tube. According to the method, graphene oxide is used as a source, and the self-curling effect of the graphene oxide under the weak acid hydrothermal condition is utilized, so that a catalyst and strong acid are not required to be introduced, the preparation process is simple, and the application of the graphene oxide in the fields of catalyst carriers and energy storage is facilitated.
Description
Technical Field
The invention relates to the technical field of nano material preparation. In particular to a method for preparing carbon fibers and carbon nano tubes by a hydrothermal method.
Background
Since the discovery of carbon nanotubes in 1991, carbon nanotubes have excellent field emission properties, ultra-strong tensile strength and toughness, excellent conductor and semiconductor properties, strong adsorption properties, wave-absorbing function, high specific surface area, and the like, and thus have great potential applications in the fields of field emission devices, micro devices, energy storage and catalysis.
The current methods for preparing carbon nanotubes are mainly three types: graphite arc process, catalytic pyrolysis process (also known as CVD process), laser ablation process. In recent years, hydrothermal preparation methods have appeared successively, and mainly take organic matters such as glucose, sucrose and the like as carbon sources, and a catalyst and strong acid are introduced under the conditions of high temperature and high pressure to prepare the carbon tube.
Disclosure of Invention
The invention provides a method for preparing a carbon nano tube by a hydrothermal method.
The specific steps of the present invention are as follows,
the method comprises the following steps: placing 1mg of Graphene Oxide (GO) powder in 100ml of deionized water, and carrying out ultrasonic treatment for 20 minutes to obtain a GO solution;
step two: dripping 20ml of the GO solution obtained in the step one into 10 mu l of dilute hydrochloric acid to obtain an acidified GO solution, wherein the mass fraction of hydrogen chloride in the dilute hydrochloric acid is 0.1%;
step three: placing the acidified GO solution obtained in the second step into a reaction kettle, and reacting at 200 ℃ for 2 hours to obtain a carbon nano tube;
GO powder buy from xifeng nanometer, the model: XF 002-2.
According to the method, graphene oxide is used as a source, and the self-curling effect of the graphene oxide under the weak acid hydrothermal condition is utilized, so that a catalyst and strong acid are not required to be introduced, the preparation process is simple, the reaction condition is mild, and the chemical components are simple. In addition, the carbon nano tube obtained by the method has large tube diameter and good dispersibility, and the surface of the carbon nano tube has rich oxidation group sites which are distributed between 30 and 50nm, thereby being beneficial to the application of the carbon nano tube in the fields of catalyst carriers and energy storage.
Detailed Description
The invention is further illustrated with reference to specific embodiments below.
1mg of GO powder (Xifeng nanometer, XF002-2) was placed in 100ml of deionized water and sonicated for 20 minutes to obtain GO solution. Mu.l of dilute hydrochloric acid (mass fraction of hydrogen chloride: 0.1%) was added dropwise to 20ml of GO solution to obtain an acidified GO solution. Then placing the acidified GO solution into a reaction kettle (specification: 25ml), reacting at 200 ℃ for 2 h. Taking out to obtain the carbon tube.
The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit and scope of the present invention, such as adjusting the acidification degree, reaction temperature, reaction time, etc., and such changes and modifications should fall within the protection scope of the appended claims.
Claims (1)
1. A method for preparing carbon nano-tubes by a hydrothermal method is characterized by comprising the following steps:
(1) putting 1mg of GO powder into 100ml of deionized water, and carrying out ultrasonic treatment for 20 minutes to obtain a GO solution;
(2) dripping 10 mul of dilute hydrochloric acid into 20ml of GO solution obtained in the first step to obtain acidified GO solution, wherein the mass fraction of hydrogen chloride in the dilute hydrochloric acid is 0.1%;
(3) placing the acidified GO solution obtained in the step two in a reaction kettle, and reacting at the temperature of 200 ℃ for 2 hours to obtain a carbon nano tube;
the GO powder is graphene oxide powder, and the model is XF 002-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210876227.7A CN114988394A (en) | 2022-07-25 | 2022-07-25 | Method for preparing carbon nano tube by hydrothermal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210876227.7A CN114988394A (en) | 2022-07-25 | 2022-07-25 | Method for preparing carbon nano tube by hydrothermal method |
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| Publication Number | Publication Date |
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| CN114988394A true CN114988394A (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210876227.7A Pending CN114988394A (en) | 2022-07-25 | 2022-07-25 | Method for preparing carbon nano tube by hydrothermal method |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828807A (en) * | 2015-04-10 | 2015-08-12 | 中国科学院重庆绿色智能技术研究院 | Preparation method of three-dimensional graphene oxide aerogel with high specific surface area |
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2022
- 2022-07-25 CN CN202210876227.7A patent/CN114988394A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828807A (en) * | 2015-04-10 | 2015-08-12 | 中国科学院重庆绿色智能技术研究院 | Preparation method of three-dimensional graphene oxide aerogel with high specific surface area |
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