Unlock instant, AI-driven research and patent intelligence for your innovation.

Co/Mn-MOF/nitrogen-doped carbon-based composite material as well as preparation method and application thereof

A technology of composite materials and nitrogen-doped carbon, which is applied in the preparation/purification of carbon, manufacturing of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of poor conductivity of MOFs materials, and achieve good cycle stability, solvent Non-toxic, high specific capacitance effect

Active Publication Date: 2020-09-25
SHANGHAI INST OF TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a Co / Mn-MOF / nitrogen-doped carbon-based composite material and its preparation method and application, so as to overcome the problem of poor electrical conductivity of MOFs materials

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
  • Co/Mn-MOF/nitrogen-doped carbon-based composite material as well as preparation method and application thereof
  • Co/Mn-MOF/nitrogen-doped carbon-based composite material as well as preparation method and application thereof
  • Co/Mn-MOF/nitrogen-doped carbon-based composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of Co / Mn-MOF / nitrogen-doped porous carbon-based composite material, comprising the following steps:

[0034] First, weigh 3.0g chitosan and dissolve it in 150.0mL mass fraction 5% acetic acid aqueous solution, after dissolving 6.0mL nano-SiO 2 Suspension (mass fraction 30%) was added to the above solution, magnetically stirred at room temperature for 12 hours, and dried in a blast oven at 150°C for 10 hours to obtain chitosan / SiO 2 composite material, followed by placing N 2 Under the atmosphere, carbonize at 900 °C for 3 h at a high temperature, and the heating rate is 5 °C / min. Finally, the composite material after heat treatment is soaked in 30% HF at room temperature to remove SiO 2 , centrifuged, washed with deionized water repeatedly until the pH value was 7, and dried at 60°C to obtain nitrogen-doped porous carbon (ANC); 1 mmol CoCl 2 and 1mmol Mn(NO 3 ) 2 Dissolve in 10mL DMF, add 1mmol 2-methylimidazole to the solution at room temperatu...

Embodiment 2

[0038] A preparation method of Co / Mn-MOF / nitrogen-doped porous carbon-based composite material, comprising the following steps:

[0039] First, weigh 5.0g chitosan and dissolve it in 150.0mL mass fraction 5% acetic acid aqueous solution, after dissolving 6.0mL nano-SiO 2 Suspension (mass fraction 30%) was added to the above solution, magnetically stirred at room temperature for 12 hours, and dried in a blast oven at 150°C for 10 hours to obtain chitosan / SiO 2 composite material, followed by placing N 2 Under the atmosphere, carbonize at a high temperature of 900 °C for 3 h, and the heating rate is 5 °C / min. Finally, the composite material after heat treatment is soaked in 30% HF at room temperature to remove SiO 2 , centrifuged, washed with deionized water repeatedly until the pH value was 7, and dried at 60°C to obtain nitrogen-doped porous carbon (ANC); 1 mmol CoCl 2 and 1mmol Mn(NO 3 ) 2 Dissolve in 10mL DMF, add 1mmol 2-methylimidazole to the solution at room temperatu...

Embodiment 3

[0042] A preparation method of Co / Mn-MOF / nitrogen-doped porous carbon-based composite material, comprising the following steps:

[0043] First, weigh 3.0g chitosan and dissolve it in 150.0mL mass fraction 5% acetic acid aqueous solution, after dissolving 6.0mL nano-SiO 2 Suspension (mass fraction 30%) was added to the above solution, magnetically stirred at room temperature for 15 hours, and dried in a blast oven at 150°C for 10 hours to obtain chitosan / SiO 2 composite material, followed by placing N 2 Under the atmosphere, carbonize at a high temperature of 900 °C for 3 h, and the heating rate is 5 °C / min. Finally, the composite material after heat treatment is soaked in 30% HF at room temperature to remove SiO 2 , centrifuged, washed with deionized water repeatedly until the pH value was 7, and dried at 60°C to obtain nitrogen-doped porous carbon (ANC); 1 mmol CoCl 2 and 1mmol Mn(NO 3 ) 2 Dissolve in 10mL DMF, add 1mmol 2-methylimidazole to the solution at room temperatu...

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

No PUM Login to View More

Abstract

The invention relates to a Co / Mn-MOF / nitrogen-doped carbon-based composite material as well as a preparation method and application thereof. The preparation method of the composite material comprisesthe following steps of 1) preparing nitrogen-doped porous carbon and a bimetal mixed solution; and 2) adding the nitrogen-doped porous carbon into the bimetallic mixed solution, then carrying out hydrothermal reaction, and then cooling, washing and drying to obtain the Co / Mn-MOF / nitrogen-doped carbon-based composite material. The composite material is prepared into a working electrode which is used in a supercapacitor. Compared with the prior art, in the present invention, the three-dimensional porous structure of the nitrogen-doped porous carbon and the Co / Mn bimetal organic framework have asynergistic effect, the supercapacitor electrode material with high specific capacitance, high conductivity and better cycling stability is formed, the preparation process is environment friendly, thepreparation method is simple, and an effective way is provided for preparing the high-performance supercapacitor electrode material.

Description

technical field [0001] The invention belongs to the technical field of electrode materials, and relates to a Co / Mn-MOF / nitrogen-doped carbon-based composite material and a preparation method and application thereof. Background technique [0002] With the gradual acceleration of social development and increasing population density, the crisis of fossil energy shortage is becoming more and more serious, and the burning of fossil fuels causes many irreversible pollution and damage to the ecological environment. Therefore, green and environmentally friendly alternative energy has become the focus of people's attention. hotspot. Supercapacitors have become one of the most potential energy storage devices because of their high power density, fast charging and discharging, and long cycle life. However, their low energy density limits the application of supercapacitors in energy storage. Electrode materials are the most important components of supercapacitors. It is of great signif...

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): H01G11/24H01G11/30H01G11/32H01G11/86C01B32/05
CPCH01G11/24H01G11/30H01G11/32H01G11/86C01B32/05Y02E60/13
Inventor 韩生胡晓敏刘顺昌王露露丛海山蒋继波孙瑶馨陈宇凯
Owner SHANGHAI INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com