Unlock instant, AI-driven research and patent intelligence for your innovation.
A preparation method of copper sulfide-carboxylated carbon nanotube/paraffin wax photothermal conversion phase change energy storage composite material
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of carboxylated carbon and composite materials, applied in the field of energy storage materials, achieving the effects of low equipment requirements, simple methods, and low cost
Active Publication Date: 2020-06-09
ZHEJIANG UNIV OF TECH
View PDF3 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The study of phase change energy storage composite materials prepared by dispersing this nano metal sulfide / carbon nanotube composite particles into paraffin with solid-liquid phase change properties has not been reported yet.
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0034] (1) Mix copper oxide (0.1658g, 0.002mol), sublimed sulfur (0.1337g, 0.004mol), oleic acid (3.53g, 0.012mol), carboxylated carbon nanotubes (0.6365g) and paraffin (16g), Heating and reacting at 180° C. and stirring speed of 280 rpm for 3.5 hours, the obtained product is copper sulfide-carboxylated carbon nanotube / paraffin wax composite material.
[0035] (2) Take part of the copper sulfide-carboxylated carbon nanotube / paraffin photothermal conversion phase change energy storage composite material and dissolve it in n-hexane, then centrifuge at high speed, discard the upper paraffin and n-hexane solution, and the lower solid is copper sulfide- Carboxylated carbon nanotube composites.
[0036] figure 2 It is the SEM photo of the product obtained in this example after removing paraffin. As can be seen from the figure, the product obtained in this example is copper sulfide and carboxylated carbon nanotubes with different particle sizes. Under the conditions of this example...
Embodiment 2
[0039] (1) Mix copper oxide (0.0.5113g, 0.006mol), sublimed sulfur (0.4122g, 0.013mol), oleic acid (3.53g, 0.012mol), carboxylated carbon nanotubes (0.6365g) and paraffin (16g) , heating and reacting for 3.5 hours at 180° C. and a stirring speed of 280 rpm, and the obtained product is copper sulfide-carboxylated carbon nanotube / paraffin wax composite material.
[0040] figure 1 It is the XRD photo of the product obtained in this example after deparaffinization. As can be seen from the figure, the product obtained in this example is cuprous sulfide and carboxylated carbon nanotubes. It can be seen that the 2θ angle positions of the diffraction peaks of the products are 27.68°, 29.27°, 31.78°, 32.85°, 38.83°, 43.10°, 44.30°, 47.89°, 52.72°, 59.30°, and 73.99°, respectively, corresponding to copper sulfide (101), (102), (103), (006), (105), (106), (008), (110), (108), (116), (208) crystal planes, the 2θ angle position is 26° is the diffraction peak of carboxylated carbon nanotu...
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
Property
Measurement
Unit
melting point
aaaaa
aaaaa
melting point
aaaaa
aaaaa
particle diameter
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a preparation method of a copper sulfide-carboxylated carbon nanotube / paraffin photothermal conversion phase change energy-storage composite. Copper oxide, sublimed sulfur, oleic acid, carboxylated carbon nanotubes and paraffin are mixed and continuously stirred to react at 150-200 DEG C for 2-5 h, and an obtained product is the copper sulfide-carboxylated carbon nanotube / paraffin photothermal conversion phase change energy-storage composite. The mass ratio of copper oxide, sublimed sulfur and oleic acid is 1:(2-4):(0.7-7); the mass ratio of carboxylated carbon nanotubes to copper oxide is (1-4):1; the mass ratio of paraffin to copper oxide is (31-97):1. The method is simple in preparation operation, green, environmentally friendly and low in cost and has low equipment requirements, and the thermal conductivity and the photothermal conversion performance of the composite phase change material are improved.
Description
[0001] (1) Technical field [0002] The present invention relates to an energy storage material, in particular to a nano-enhanced phase change energy storage composite material with light-to-heat conversion function, that is, a method for preparing copper sulfide-modified carboxylated carbon nanotube / paraffin wax light-to-heat conversion phase-change energy storage material . [0003] (2) Background technology [0004] With a growing population and rapid economic development, energy demand exceeds energy production, a mismatch that forces researchers to develop new sources of energy or store available energy. The sun is an inexhaustible source of renewable energy, but this energy is only available during the day, prompting the development of thermal energy storage systems. As one of the important energy storage methods, thermal energy storage can make up for the unbalanced heating supply, reduce costs, reduce carbon dioxide emissions and reduce environmental pollution. The th...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More