Nano-network structural carbon material with carbon nanotube core@functional amorphous carbon shell unit and preparation method and application thereof

A carbon nanotube and amorphous carbon technology, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve the problems of lack of hierarchical design, lack of high functional groups, unfavorable high functionality and high performance, etc. , to achieve the effect of synchronizing crosslinking and carbonization and avoiding liquid phase crosslinking

Active Publication Date: 2019-01-11
SUN YAT SEN UNIV
View PDF10 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both phenolic resin-based and polystyrene-based reaction materials (i.e., building units) lack high-functional groups, and need to go through tedious liquid-phase cross-linking reactions to ensure the carbonization of the network skeleton, resulting in the obtained The physical and chemical structure of the carbon skeleton of nano-network carbon materials is usually relatively single and lacks a hierarchical design, which is very unfavorable for its high functionality and high performance, which greatly limits its application range

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
  • Nano-network structural carbon material with carbon nanotube core@functional amorphous carbon shell unit and preparation method and application thereof
  • Nano-network structural carbon material with carbon nanotube core@functional amorphous carbon shell unit and preparation method and application thereof
  • Nano-network structural carbon material with carbon nanotube core@functional amorphous carbon shell unit and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The embodiment of the present invention provides a method for preparing a carbon nano-network structure carbon material with a carbon nanotube core@functional amorphous carbon shell unit, comprising the following steps:

[0055] (1) Modified carbon nanotubes (CNTs) with bromine groups to obtain carbon nanotubes with bromine functional groups (CNT-Br): add 174mL of nitric acid and 21mL of water to 5.7g of CNTs, sonicate for 30min, and reflux at 120°C for 24h , filtered and washed three times with water, vacuum dried overnight at 90°C to obtain CNT-COOH; add 60 mL of thionyl chloride to the obtained CNT-COOH, react at 70°C for 24 hours to obtain CNT-COCl, and then remove excess chlorine by vacuum treatment sulfoxide; add 120mL of anhydrous ethylene glycol, stir at 120°C for 48h, filter the solid and wash it three times with tetrahydrofuran, and obtain CNT-OH after vacuum drying; take 2.8g of CNT-OH, 70mL of chloroform, 0.2g of 4-dimethyl Put aminopyridine and 3mL triethyl...

Embodiment 2

[0066] The embodiment of the present invention provides a method for preparing a carbon nano-network structure carbon material with a carbon nanotube core@functional amorphous carbon shell unit, comprising the following steps:

[0067] (1) Modification of carbon nanotubes (CNTs) with bromine groups to obtain carbon nanotubes with bromine functional groups (CNT-Br): Add 170mL of nitric acid and 17mL of water to 5.7g of CNTs, sonicate for 30min, and reflux at 110°C for 24h , filtered and washed three times with water, vacuum dried overnight at 90°C to obtain CNT-COOH; add 55mL of thionyl chloride to the obtained CNT-COOH, react at 60°C for 24h to obtain CNT-COCl, and then remove excess chlorine by vacuum treatment sulfoxide; add 110mL of anhydrous ethylene glycol, stir at 100°C for 50h, filter the solid and wash it three times with tetrahydrofuran, and dry it in vacuo to obtain CNT-OH; take 2.8gCNT-OH, 65mL chloroform, 0.18g 4-dimethylamino Put pyridine and 2.8mL triethylamine i...

Embodiment 3

[0072] The embodiment of the present invention provides a method for preparing a carbon nano-network structure carbon material with a carbon nanotube core@functional amorphous carbon shell unit, comprising the following steps:

[0073] (1) Modification of carbon nanotubes (CNTs) with bromine groups to obtain carbon nanotubes with bromine functional groups (CNT-Br): add 180mL of nitric acid and 25mL of water to 5.7g of CNTs, sonicate for 30min, and reflux at 130°C for 24h , filtered and washed three times with water, vacuum dried overnight at 90°C to obtain CNT-COOH; add 65mL of thionyl chloride to the obtained CNT-COOH, react at 80°C for 20h to obtain CNT-COCl, and then remove excess chlorine by vacuum treatment sulfoxide; add 130mL of anhydrous ethylene glycol, stir at 120°C for 46h, filter the solid and wash with THF three times, and dry in vacuo to obtain CNT-OH; take 2.8g of CNT-OH, 75mL of chloroform, and 0.22g of 4-dimethyl Aminopyridine and 3.2mL triethylamine were plac...

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
concentrationaaaaaaaaaa
Login to view more

Abstract

The invention provides a nano-network structural carbon material with a carbon nanotube core@functional amorphous carbon shell unit and a preparation method and application thereof. The nano-network structural carbon material is prepared through grafting a functional polymer transition metal salt to a bromine functional group-containing carbon nanotube, carrying out centrifugation or suction filtration overlap joint to obtain a macroscopic material and carrying out solid phase thermal crosslinking and carbonization. The nano-network structural carbon material has a unique heterogeneous core-shell structure. The highly graphitized structure is used as a core and the high active inorganic component-modified amorphous carbon is used as a shell. The core-shell network units are connected to form a three-dimensional communicated network structure through covalent bonding in all directions so that the high conductivity and versatility of the high active inorganic component-modified amorphouscarbon are guaranteed. The core-shell network units provide a layered pore structure with developed storage sites and a fast transmission function for the novel material and can be used in the fieldsof lithium batteries and electrocatalysis.

Description

technical field [0001] The present invention relates to the field of nano-carbon materials, in particular to a nano-network structure carbon material with carbon nanotube core@functional amorphous carbon shell unit and its preparation method and application Background technique [0002] Nano-network structure carbon materials are a new type of nano-carbon materials that are covalently connected to each other by nano-carbon network units. In addition to the above-mentioned conventional advantages of nano-carbon materials, they also have a unique three-dimensional interconnected hierarchical nano-network channel structure. , has broad application prospects in the fields of adsorption, sustained release, energy, catalysis, and the environment. [0003] As we all know, the network unit determines the pore structure, skeleton chemical and physical structure of the nano-network material, and then determines the performance and application of the material. Therefore, the network un...

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 Applications(China)
IPC IPC(8): C01B32/174
CPCC01B32/174
Inventor 吴丁财冷坤怡刘如亮李传发
Owner SUN YAT SEN 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