CN110564374A - Graphene aerogel or carbon nano-particle phase change material and preparation method thereof - Google Patents
Graphene aerogel or carbon nano-particle phase change material and preparation method thereof Download PDFInfo
- Publication number
- CN110564374A CN110564374A CN201910879558.4A CN201910879558A CN110564374A CN 110564374 A CN110564374 A CN 110564374A CN 201910879558 A CN201910879558 A CN 201910879558A CN 110564374 A CN110564374 A CN 110564374A
- Authority
- CN
- China
- Prior art keywords
- phase
- graphene aerogel
- mirabilite
- change
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
Abstract
The invention relates to the field of energy storage and building materials, and discloses a graphene aerogel phase change energy storage material which comprises aerogel and a mirabilite phase change energy storage material filled in the graphene aerogel. A manufacturing method of a graphene aerogel phase-change energy storage material comprises the following steps: the method comprises the following steps: carrying out oxidation treatment and acidification treatment on the graphene aerogel to obtain hydrophilic graphene aerogel; step two: preparing a mirabilite phase-change material into a liquid state; step three: and (3) immersing the graphene aerogel obtained in the step one into a mirabilite phase-change liquid material, performing ultrasonic treatment, evaporating under a water bath heating condition to remove moisture, and cooling to below 30 ℃ to obtain the graphene aerogel packaging mirabilite phase-change material. The technical scheme adopted by the invention has the following advantages: the technical scheme adopted by the invention eliminates the phase layering phenomenon of the mirabilite phase change material, so that the supercooling degree is less than 1 ℃. The latent heat of the mirabilite phase change can be kept above 80% after 500 times of cyclic use, and the service life is longer.
Description
Technical Field
The invention relates to the field of energy storage and building materials, in particular to the field of temperature control and energy storage or the field of temperature regulation and control in buildings.
Background
The phase change energy storage technology achieves the purpose of improving the ambient temperature by absorbing and releasing a large amount of heat in the phase change process of the phase change material. The phase-change energy storage material cannot be popularized and applied due to the fact that the phase-change energy storage material is overcooled, layered and low in heat conductivity coefficient, and therefore the preparation of the high-performance phase-change energy storage material is particularly important. The composite phase change material with stable porous form is prepared by encapsulating PCM into the porous material through a natural impregnation method. Generally, organic phase change materials compounded with porous materials include fatty acids, alkanes, polymers and binary or ternary eutectic mixtures thereof. The inorganic phase change material mainly comprises sulfate, nitrate, carbonate, metal and the like. The preparation method of the composite phase-change energy storage material mainly comprises a vacuum impregnation method, a melting intercalation method, a melting adsorption method and the like. As the support material of the composite phase-change material, porous materials can exist, such as mineral materials, expanded graphite and the like, and also can be foamed metal, porous ceramics, nano carbon materials and the like. The aerogel has a porous structure, high porosity, chemical stability, wear resistance, heat resistance, water absorbability, permeability and other properties, can adsorb the phase-change material, prevents the phase-change material from leaking in the phase-change process, and endows the PCM with some mechanical properties. The aerogel can be used for preparing high-performance aerogel products such as metal and graphite type aerogel, and high-performance energy storage and building materials are prepared by adsorbing the phase-change energy storage material. The invention aims to provide an aerogel phase-change energy storage material applied to the fields of energy storage and building materials and the like, and particularly relates to the field of temperature control and energy storage or the field of temperature regulation and control in buildings.
Disclosure of Invention
The invention provides an aerogel phase-change energy storage material with longer service life and better performance, and in order to realize the purpose, the invention adopts the following technical scheme: the utility model provides a graphite alkene aerogel phase change energy storage material, includes aerogel and fills in the inside phase change energy storage material of aerogel, the aerogel is graphite alkene aerogel, phase change energy storage material is the salt cake.
Preferably, the graphene aerogel is in the shape of a cuboid or a cylinder.
A manufacturing method of a graphene aerogel phase-change energy storage material comprises the following steps:
The method comprises the following steps: carrying out oxidation treatment and acidification treatment on the graphene aerogel to obtain hydrophilic graphene aerogel;
Step two: preparing a mirabilite phase-change material into a liquid state;
Step three: and (3) immersing the graphene aerogel obtained in the step one into a mirabilite phase-change liquid material, performing ultrasonic treatment, evaporating under a water bath heating condition to remove moisture, and cooling to below 30 ℃ to obtain the graphene aerogel packaging mirabilite phase-change material.
Preferably, the specific operation steps of the first step are as follows: mixing graphene aerogel, sodium nitrate and concentrated sulfuric acid, adding potassium perchlorate while stirring, adding potassium permanganate 3-5 times, controlling the temperature at 0-20 ℃, slowly adding deionized water after ultrasonic oscillation for 10-24 hours, controlling the temperature at 80-100 ℃, adding a certain amount of hydrogen peroxide to reduce residual oxidant after ultrasonic oscillation for 20min, separating the graphene oxide aerogel by using a suction filtration method, washing with dilute HCl solution and deionized water successively until the pH value of a separation solution is neutral, and then carrying out vacuum drying to obtain the hydrophilic graphene aerogel.
Preferably, the graphene aerogel, sodium nitrate, sodium perchlorate, potassium permanganate, concentrated sulfuric acid and water are mixed according to a mass ratio of 1: 1: 5: 3: 80: 80, and (4) preparing.
Preferably, the second step includes the following specific steps: 50-100 g of mirabilite is put into a flask and heated to be dissolved for 10-20 minutes, the temperature is controlled at 40-80 ℃, a certain amount of water is added to fully dissolve the solid, and the temperature is kept at 40-80 ℃.
Preferably, the graphene aerogel obtained in the first step is soaked in the mirabilite phase-change liquid material obtained in the second step, ultrasonic treatment is carried out for 0.5-1 hour, then the water supplemented in the second step is evaporated and removed under the water bath heating condition of 100 ℃, and then the graphene aerogel packaged mirabilite phase-change material is obtained after cooling to below 30 ℃.
Preferably, the graphene aerogel has a selection standard of 0.16-0.5 mg per cubic centimeter of weight, has good elasticity, and can recover to the original shape after being compressed by 80%.
The invention provides another phase change energy storage material, which adopts the technical scheme as follows:
The carbon-series nano-fluid composite low-temperature mirabilite-based phase-change material is characterized in that the phase-change material is formed by compounding carbon-series nano-particles and a mirabilite phase-change material, wherein the mass ratio of the carbon-series nano-particles is 1-10%. The weight ratio of the mirabilite phase-change material is 99-90%, and the carbon nanoparticles are modified hydrophilic nanoparticles.
A preparation method of a carbon nanofluid composite low-temperature nitro-group phase change material comprises the following steps: the method comprises the following steps: preparing hydrophilic carbon nanoparticles, and the second step: mixing hydrophilic nanoparticles and a mirabilite phase-change material according to a mass ratio, firstly, carrying out ball milling in a ball mill to fully mix the mixture, then heating and dissolving, controlling the temperature at 40-80 ℃, supplementing a certain amount of water to fully dissolve the solid, keeping the temperature at 40-80 ℃, carrying out ultrasonic treatment for 0.5-1 hour, then evaporating and removing the supplemented water under the water bath heating condition of 100 ℃, and finally cooling to below 30 ℃ to obtain the solid-phase material of the carbon-series nanoparticle fluid composite mirabilite phase-change material.
Preferably, the method for preparing the hydrophilic carbon-based nanoparticles comprises: carbon nanoparticles, sodium nitrate, sodium perchlorate, potassium permanganate, concentrated sulfuric acid and water are mixed according to a mass ratio of 1: 1: 5: 3: 40: 40, mixing the carbon nanoparticles, sodium nitrate, sodium perchlorate, potassium permanganate and concentrated sulfuric acid which are prepared in proportion, controlling the temperature to be 0-20 ℃, carrying out ultrasonic oscillation for 10-24h, slowly adding deionized water in proportion, controlling the temperature to be 80-100 ℃, carrying out ultrasonic oscillation for 20min, adding a proper amount of hydrogen peroxide to reduce residual oxidant, separating the oxidized nanoparticles by a suction filtration method in batches, washing the oxidized nanoparticles by using 5% HCl solution and deionized water in sequence until the pH value of a separation solution is 7, and finally carrying out vacuum drying to obtain the hydrophilic carbon nanoparticles.
The technical scheme adopted by the invention has the following advantages: according to the invention, the graphene aerogel generates hydroxyl groups and carboxyl groups on a surface layer structure of the graphene aerogel through oxidation and acidification treatments, and a mirabilite solution obtained through heating is connected with the surface group of the graphene aerogel through a hydrogen bond. The technical scheme adopted by the invention eliminates the phase layering phenomenon of the mirabilite phase change material, so that the supercooling degree is less than 1 ℃. The latent heat of the mirabilite phase change can be kept above 80% after 500 times of cyclic use, and the service life is longer.
Detailed Description
The technical solution of the present invention will be further explained and illustrated with reference to the detailed description.
Example 1
Mixing graphene aerogel, sodium nitrate, sodium perchlorate, potassium permanganate, concentrated sulfuric acid and water according to a mass ratio of 1: 5:3: 80: 80, and (4) preparing. Then mixing the graphene aerogel, sodium nitrate and concentrated sulfuric acid according to a preparation ratio, adding potassium perchlorate while stirring, then adding potassium permanganate for 3-5 times, controlling the temperature at 0-20 ℃, slowly adding deionized water according to a ratio after ultrasonic oscillation for 10-24 hours, controlling the temperature at 80-100 ℃, and adding a proper amount of hydrogen peroxide to reduce residual oxidant after ultrasonic oscillation for 20min, so that the solution is bright yellow. And then separating the graphene oxide aerogel by using a suction filtration method in batches, and washing the graphene oxide aerogel by using 5% HCl solution and deionized water in sequence, wherein the aim is to remove the solution medium of the whole reaction to obtain the aerogel with a surface layer structure having hydrophilic hydroxyl and carboxyl groups until the pH value of a separation solution is 7. And finally, carrying out vacuum drying to obtain the hydrophilic graphene aerogel.
A liquid preparation method of mirabilite phase-change material comprises the steps of putting mirabilite into a flask, heating and dissolving for 10-20 minutes, controlling the temperature at 40-80 ℃, adding a certain amount of water to fully dissolve solids, and keeping the temperature at 40-80 ℃. The mass of the mirabilite is 10-20 times of that of the graphene aerogel.
And (3) soaking the hydrophilic graphene aerogel in the mirabilite phase-change liquid material, performing ultrasonic treatment for 0.5-1 hour, evaporating to remove the added water under the water bath heating condition of 100 ℃, and finally cooling to below 30 ℃ to obtain the graphene aerogel packaging mirabilite phase-change material.
Example 2
mixing 5g of graphene aerogel, 5g of sodium nitrate and 400ml of concentrated sulfuric acid, adding 25g of potassium perchlorate while stirring, adding 15g of potassium permanganate 3-5 times, controlling the temperature to be 0-20 ℃, slowly adding 400ml of deionized water after ultrasonic oscillation for 10-24 hours, controlling the temperature to be 80-100 ℃, adding a proper amount of hydrogen peroxide to reduce residual oxidant after ultrasonic oscillation for 20min, separating the graphene oxide aerogel by suction filtration for several times, washing with 5% of HCl solution and deionized water successively until the separated liquid is neutral, and then drying in vacuum to obtain the hydrophilic graphene aerogel. 50-100 g of mirabilite is put into a flask and heated to be dissolved for 10-20 minutes, the temperature is controlled at 40-80 ℃, a certain amount of water is added to fully dissolve the solid, and the temperature is kept at 40-80 ℃. And (3) soaking the hydrophilic graphene aerogel in the mirabilite phase-change liquid material, performing ultrasonic treatment for 0.5-1 hour, evaporating to remove the added water under the water bath heating condition of 100 ℃, and finally cooling to below 30 ℃ to obtain the graphene aerogel packaging mirabilite phase-change material.
The specific embodiment of another technical scheme of the invention is as follows:
Example 3
The carbon-series nano-fluid composite low-temperature mirabilite-based phase-change material is characterized in that the phase-change material is formed by compounding carbon-series nano-particles and a mirabilite phase-change material, wherein the mass ratio of the carbon-series nano-particles is 1-10%. The weight ratio of the mirabilite phase-change material is 99-90%, and the carbon nanoparticles are modified hydrophilic nanoparticles.
A preparation method of a carbon nanofluid composite low-temperature nitro-group phase change material comprises the following steps: the method comprises the following steps: preparing hydrophilic carbon nanoparticles, and the second step: mixing modified carbon nanoparticles with the particle size of 10-500 nanometers and a mirabilite phase-change material according to a mass ratio, firstly carrying out ball milling for 10-30 minutes in a ball mill, then heating and dissolving for 10-20 minutes, controlling the temperature to be 40-80 ℃, supplementing a certain amount of water to fully dissolve solids, carrying out heat preservation at 40-80 ℃, carrying out ultrasonic treatment for 0.5-1 hour, then evaporating and removing the supplemented water under the water bath heating condition of 100 ℃, finally cooling to below 30 ℃ to obtain the solid phase material of the carbon nanoparticle fluid composite mirabilite phase-change material, heating to 33-50 ℃ to form mirabilite-based composite nanofluid when in use, changing to the nanoparticle composite solid phase material when the temperature is below 30 ℃, and simultaneously releasing heat, wherein the process can be recycled.
The method for preparing the hydrophilic carbon nanoparticles comprises the following steps: carbon nanoparticles, sodium nitrate, sodium perchlorate, potassium permanganate, concentrated sulfuric acid and water are mixed according to a mass ratio of 1: 1: 5: 3: 40: 40, mixing the carbon nanoparticles, sodium nitrate, sodium perchlorate, potassium permanganate and concentrated sulfuric acid which are prepared in proportion, controlling the temperature to be 0-20 ℃, carrying out ultrasonic oscillation for 10-24h, slowly adding deionized water in proportion, controlling the temperature to be 80-100 ℃, carrying out ultrasonic oscillation for 20min, adding a proper amount of hydrogen peroxide to reduce residual oxidant, separating the oxidized nanoparticles by a suction filtration method in batches, washing the oxidized nanoparticles by using 5% HCl solution and deionized water in sequence until the pH value of a separation solution is 7, and finally carrying out vacuum drying to obtain the hydrophilic carbon nanoparticles.
Example 5
The carbon-series nano-fluid composite low-temperature mirabilite-based phase-change material is characterized in that the phase-change material is formed by compounding carbon-series nano-particles and a mirabilite phase-change material, wherein the mass ratio of the carbon-series nano-particles is 1-10%. The weight ratio of the mirabilite phase-change material is 99-90%, and the carbon nanoparticles are modified hydrophilic nanoparticles.
At present, the existing techniques of adding a thickening agent, a nucleating agent, packaging a nanofiber and packaging a microcapsule cannot effectively solve the problems of phase layering phenomenon and large supercooling degree (2-10 ℃) of a mirabilite phase change material. And the problem of short service life, and the latent heat loss of the mirabilite phase change is more than 50 percent after the mirabilite is recycled for 500 times. The technology eliminates the phase layering phenomenon of the mirabilite phase-change material, so that the supercooling degree is less than 1 ℃. The latent heat of phase change of mirabilite is kept above 80% after 500 times of cyclic use.
Claims (10)
1. A manufacturing method of a graphene aerogel phase-change energy storage material comprises the following steps:
The method comprises the following steps: carrying out oxidation treatment and acidification treatment on the graphene aerogel to obtain hydrophilic graphene aerogel;
Step two: preparing a mirabilite phase-change material into a liquid state;
Step three: and (3) immersing the graphene aerogel obtained in the step one into a mirabilite phase-change liquid material, performing ultrasonic treatment, evaporating under a water bath heating condition to remove moisture, and cooling to below 30 ℃ to obtain the graphene aerogel packaging mirabilite phase-change material.
2. The method for preparing the graphene aerogel phase-change energy storage material as claimed in claim 1, wherein the method comprises the following steps: the specific operation steps of the first step are as follows: mixing graphene aerogel, sodium nitrate and concentrated sulfuric acid, adding potassium perchlorate while stirring, adding potassium permanganate 3-5 times, controlling the temperature at 0-20 ℃, slowly adding deionized water after ultrasonic oscillation for 10-24 hours, controlling the temperature at 80-100 ℃, adding a certain amount of hydrogen peroxide to reduce residual oxidant after ultrasonic oscillation for 20min, separating the graphene oxide aerogel by using a suction filtration method, washing with dilute HCl solution and deionized water successively until the pH value of a separation solution is neutral, and then carrying out vacuum drying to obtain the hydrophilic graphene aerogel.
3. The method for preparing the graphene aerogel phase-change energy storage material as claimed in claim 2, wherein the method comprises the following steps: the graphene aerogel, sodium nitrate, sodium perchlorate, potassium permanganate, concentrated sulfuric acid and water are mixed according to the mass ratio of 1: 1: 5: 3: 80: 80, and (4) preparing.
4. the method for preparing the graphene aerogel phase-change energy storage material as claimed in claim 2, wherein the method comprises the following steps: mixing 5g of graphene aerogel, 5g of sodium nitrate and 400ml of concentrated sulfuric acid, adding 25g of potassium perchlorate while stirring, adding 15g of potassium permanganate 3-5 times, controlling the temperature to be 0-20 ℃, slowly adding 400ml of deionized water after ultrasonic oscillation for 10-24 hours, controlling the temperature to be 80-100 ℃, adding a proper amount of hydrogen peroxide to reduce residual oxidant after ultrasonic oscillation for 20min, separating the graphene oxide aerogel by suction filtration for several times, washing with 5% of HCl solution and deionized water successively until the separated liquid is neutral, and then drying in vacuum to obtain the hydrophilic graphene aerogel.
5. the method for preparing the graphene aerogel phase-change energy storage material as claimed in claim 1, wherein the method comprises the following steps: the second step comprises the following specific implementation steps: placing mirabilite into a flask, heating and dissolving for 10-20 minutes, controlling the temperature at 40-80 ℃, adding a certain amount of water to fully dissolve the solid, and keeping the temperature at 40-80 ℃.
6. the method for preparing the graphene aerogel phase-change energy storage material as claimed in claim 5, wherein the method comprises the following steps: and (3) dipping the graphene aerogel obtained in the step one in the mirabilite phase-change liquid material obtained in the step two, performing ultrasonic treatment for 0.5-1 hour, evaporating to remove the water supplemented in the step two under the water bath heating condition of 100 ℃, and cooling to below 30 ℃ to obtain the graphene aerogel packaging mirabilite phase-change material.
7. The method for preparing the graphene aerogel phase-change energy storage material as claimed in claim 1, wherein the method comprises the following steps: the graphene aerogel has the selection standard of 0.16-0.5 mg per cubic centimeter in weight and can be restored after being compressed by 80%.
8. The carbon-series nano-fluid composite low-temperature mirabilite-based phase-change material is characterized in that the phase-change material is formed by compounding carbon-series nano-particles and a mirabilite phase-change material, wherein the mass ratio of the carbon-series nano-particles is 1-10%. The weight ratio of the mirabilite phase-change material is 99-90%, and the carbon nanoparticles are modified hydrophilic nanoparticles.
9. a preparation method of a carbon nanofluid composite low-temperature nitro-group phase change material comprises the following steps: the method comprises the following steps: preparing hydrophilic carbon nanoparticles, and the second step: mixing hydrophilic nanoparticles and a mirabilite phase-change material according to a mass ratio, firstly, carrying out ball milling in a ball mill to fully mix the mixture, then heating and dissolving, controlling the temperature at 40-80 ℃, supplementing a certain amount of water to fully dissolve the solid, keeping the temperature at 40-80 ℃, carrying out ultrasonic treatment for 0.5-1 hour, then evaporating and removing the supplemented water under the water bath heating condition, and finally cooling to below 30 ℃ to obtain the solid-phase material of the carbon-series nanoparticle fluid mirabilite phase-change material.
10. The method for preparing the carbon nanofluid composite low-temperature nitro-group phase change material as claimed in claim 9, wherein the method for preparing the hydrophilic carbon nanoparticles comprises the following steps: carbon nanoparticles, sodium nitrate, sodium perchlorate, potassium permanganate, concentrated sulfuric acid and water are mixed according to a mass ratio of 1: 1: 5: 3: 40: 40, mixing the carbon nanoparticles, sodium nitrate, sodium perchlorate, potassium permanganate and concentrated sulfuric acid which are prepared in proportion, controlling the temperature to be 0-20 ℃, carrying out ultrasonic oscillation for 10-24h, slowly adding deionized water in proportion, controlling the temperature to be 80-100 ℃, carrying out ultrasonic oscillation for 20min, adding a proper amount of hydrogen peroxide to reduce residual oxidant, separating the oxidized nanoparticles by a suction filtration method in batches, washing the oxidized nanoparticles by using 5% HCl solution and deionized water in sequence until the pH value of a separation solution is 7, and finally carrying out vacuum drying to obtain the hydrophilic carbon nanoparticles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910879558.4A CN110564374B (en) | 2019-09-18 | 2019-09-18 | Graphene aerogel or carbon nano-particle phase change material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910879558.4A CN110564374B (en) | 2019-09-18 | 2019-09-18 | Graphene aerogel or carbon nano-particle phase change material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110564374A true CN110564374A (en) | 2019-12-13 |
| CN110564374B CN110564374B (en) | 2021-08-03 |
Family
ID=68780948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910879558.4A Active CN110564374B (en) | 2019-09-18 | 2019-09-18 | Graphene aerogel or carbon nano-particle phase change material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110564374B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303840A (en) * | 2020-03-27 | 2020-06-19 | 青海大学 | Preparation method of inorganic hydrous salt phase-change material |
| CN113969142A (en) * | 2021-11-24 | 2022-01-25 | 青海大学 | Preparation method of mirabilite-based solid-liquid composite phase-change energy storage material |
| CN114790378A (en) * | 2022-06-07 | 2022-07-26 | 青海大学 | Silver nanowire/graphite fiber woven fabric-sodium sulfate decahydrate shaping phase-change energy storage material and preparation method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496695A (en) * | 2013-09-30 | 2014-01-08 | 东南大学 | Preparation method of nitrogen-doped reducing graphene oxide aerogel |
| CN105505330A (en) * | 2016-01-25 | 2016-04-20 | 浙江碳谷上希材料科技有限公司 | Three-dimensional phase-change material based on graphene and preparing method of three-dimensional phase-change material |
| CN106242494A (en) * | 2016-08-08 | 2016-12-21 | 上海交通大学 | Material for storing heat of phase change in low temperature and preparation method thereof in graphene aerogel complex intensifying |
| CN106634859A (en) * | 2017-01-16 | 2017-05-10 | 西南科技大学 | Preparation method of graphene heat-conducting shape-stabilized phase change material with isolation structure |
| CN107586537A (en) * | 2017-07-26 | 2018-01-16 | 同济大学 | A kind of composite phase-change material and preparation method thereof |
| CN107674652A (en) * | 2017-08-31 | 2018-02-09 | 北京化工大学 | A kind of arbitrary shape three-dimensional grapheme thermal-conductivity phase-change composite and preparation method thereof |
| CN108441174A (en) * | 2018-04-23 | 2018-08-24 | 辽宁卓仑科技有限公司 | A kind of phase-change heat-storage material and preparation method thereof |
| CN109133040A (en) * | 2018-08-07 | 2019-01-04 | 北京科技大学 | A kind of preparation method of the adjustable graphene aerogel of pore-size |
| WO2019013793A1 (en) * | 2017-07-13 | 2019-01-17 | Hewlett-Packard Development Company, L.P. | Coating composition(s) |
| CN109467887A (en) * | 2018-11-15 | 2019-03-15 | 哈尔滨理工大学 | Montmorillonite/graphite oxide aerogel/epoxy resin composite material preparation method |
| CN109609096A (en) * | 2018-10-18 | 2019-04-12 | 浙江大学山东工业技术研究院 | A kind of air conditioner cold accumulation phase-change material and preparation method thereof |
| CN109929518A (en) * | 2019-03-29 | 2019-06-25 | 同济大学 | A kind of graphite oxide aerogel heat chemistry heat accumulation composite material and preparation method |
-
2019
- 2019-09-18 CN CN201910879558.4A patent/CN110564374B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496695A (en) * | 2013-09-30 | 2014-01-08 | 东南大学 | Preparation method of nitrogen-doped reducing graphene oxide aerogel |
| CN105505330A (en) * | 2016-01-25 | 2016-04-20 | 浙江碳谷上希材料科技有限公司 | Three-dimensional phase-change material based on graphene and preparing method of three-dimensional phase-change material |
| CN106242494A (en) * | 2016-08-08 | 2016-12-21 | 上海交通大学 | Material for storing heat of phase change in low temperature and preparation method thereof in graphene aerogel complex intensifying |
| CN106634859A (en) * | 2017-01-16 | 2017-05-10 | 西南科技大学 | Preparation method of graphene heat-conducting shape-stabilized phase change material with isolation structure |
| WO2019013793A1 (en) * | 2017-07-13 | 2019-01-17 | Hewlett-Packard Development Company, L.P. | Coating composition(s) |
| CN107586537A (en) * | 2017-07-26 | 2018-01-16 | 同济大学 | A kind of composite phase-change material and preparation method thereof |
| CN107674652A (en) * | 2017-08-31 | 2018-02-09 | 北京化工大学 | A kind of arbitrary shape three-dimensional grapheme thermal-conductivity phase-change composite and preparation method thereof |
| CN108441174A (en) * | 2018-04-23 | 2018-08-24 | 辽宁卓仑科技有限公司 | A kind of phase-change heat-storage material and preparation method thereof |
| CN109133040A (en) * | 2018-08-07 | 2019-01-04 | 北京科技大学 | A kind of preparation method of the adjustable graphene aerogel of pore-size |
| CN109609096A (en) * | 2018-10-18 | 2019-04-12 | 浙江大学山东工业技术研究院 | A kind of air conditioner cold accumulation phase-change material and preparation method thereof |
| CN109467887A (en) * | 2018-11-15 | 2019-03-15 | 哈尔滨理工大学 | Montmorillonite/graphite oxide aerogel/epoxy resin composite material preparation method |
| CN109929518A (en) * | 2019-03-29 | 2019-06-25 | 同济大学 | A kind of graphite oxide aerogel heat chemistry heat accumulation composite material and preparation method |
Non-Patent Citations (4)
| Title |
|---|
| CHEN J: "An improved Hummers method for eco-friendly synthesis of graphene oxide", 《CARBON》 * |
| 方昕: "基于石墨烯气凝胶的定形相变材料储热性能研究", 《热科学与技术》 * |
| 李银峰: "《碳纳米材料制备及其应用研究》", 31 March 2019, 中国原子能出版社 * |
| 柳馨: "温室多壁碳纳米管芒硝基相变材料储能性能", 《农业工程学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303840A (en) * | 2020-03-27 | 2020-06-19 | 青海大学 | Preparation method of inorganic hydrous salt phase-change material |
| CN113969142A (en) * | 2021-11-24 | 2022-01-25 | 青海大学 | Preparation method of mirabilite-based solid-liquid composite phase-change energy storage material |
| CN113969142B (en) * | 2021-11-24 | 2024-01-12 | 青海大学 | Preparation method of mirabilite-based solid-liquid composite phase-change energy storage material |
| CN114790378A (en) * | 2022-06-07 | 2022-07-26 | 青海大学 | Silver nanowire/graphite fiber woven fabric-sodium sulfate decahydrate shaping phase-change energy storage material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110564374B (en) | 2021-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110564374B (en) | Graphene aerogel or carbon nano-particle phase change material and preparation method thereof | |
| Shi et al. | Rational design of hierarchical ZnO@ Carbon nanoflower for high performance lithium ion battery anodes | |
| CN108455562B (en) | Thin-wall local graphitized porous carbon sphere material, preparation method thereof and application thereof in lithium-sulfur battery | |
| CN109437202B (en) | Two-dimensional transition metal carbon (nitride) aerogel and preparation method and application thereof | |
| CN113571703B (en) | Sodium ion battery carbon-based negative electrode material and preparation method thereof | |
| KR20130015719A (en) | A complex comprising a mesoporous silicon oxide and a graphene, and method for preparing the same | |
| CN109802135B (en) | Lithium-sulfur battery positive electrode material, and preparation method and application thereof | |
| JP5443352B2 (en) | Porous carbon material and method for producing the same | |
| CN113363436B (en) | Lithium ion battery with high energy density and high cycle performance | |
| CN110283288A (en) | A kind of mass producible Heteroatom doping has cavity structure polymer nano-microspheres and preparation method thereof | |
| CN113750964B (en) | Preparation method of lanthanum-loaded graphene aerogel phosphorus adsorbent | |
| CN112786865A (en) | MoS2Preparation method and application of quasi-quantum dot/nitrogen-sulfur co-doped biomass carbon composite nano material | |
| CN108439373B (en) | Amphiphilic Janus structure graphene-based aerogel and preparation method thereof | |
| Meng et al. | Sodium polyacrylate-derived porous carbon nanosheets for high-performance lithium–sulfur batteries | |
| CN114497542B (en) | Nanometer cobalt phosphide embedded nitrogen-phosphorus co-doped porous carbon composite material in raisin pudding model, and preparation method and application thereof | |
| CN111740114B (en) | Lithium-sulfur battery composite positive electrode material and preparation method thereof | |
| WO2021047354A1 (en) | Pine branch-shaped samarium oxide-graphene-sulfur gel structure material, preparation method therefor, and application thereof | |
| CN111204747B (en) | Preparation method of three-dimensional graphene material | |
| CN113429943A (en) | Modified attapulgite and preparation method of modified attapulgite-based composite phase change material | |
| CN116376520B (en) | Preparation method of carboxymethyl chitosan reinforced nano boron nitride aerogel composite phase change material | |
| CN112010343B (en) | Preparation method of graphene lithium ion battery anode material with metal oxide @ in oriented arrangement | |
| CN114914101B (en) | Porous carbon energy storage material and preparation method thereof | |
| CN114835115B (en) | Preparation method and application of active mesophase carbon microspheres | |
| CN114854041B (en) | Lignin nanotube and preparation method and application thereof | |
| CN109354033B (en) | High-adsorptivity expanded montmorillonite and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |