Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A method for preparing an electrode of ZIF-derived CoMoO4

A ZIF-67 electrode technology, which is applied in the field of ZIF electrode preparation, can solve the problems of poor electrode stability and small specific capacitance, and achieve the effects of increasing specific heat capacity, ensuring heating rate, and increasing migration rate

Active Publication Date: 2019-01-18
盐城市盐南高新区都市产业发展有限公司
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of poor stability and small specific capacitance of metal oxide electrodes in the prior art, the present invention provides a ZIF-derived CoMoO with high specific volume and good stability of metal oxide electrode materials 4 preparation method

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
  • A method for preparing an electrode of ZIF-derived CoMoO4
  • A method for preparing an electrode of ZIF-derived CoMoO4
  • A method for preparing an electrode of ZIF-derived CoMoO4

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Sample preparation

[0030] A ZIF-derived CoMoO 4 The preparation method of the electrode is to use high-temperature calcined ZIF-67 as a precursor, and prepare CoMoO by hydrothermal method 4 , the steps are: (1) Take Na respectively 2 MoO4·2H 2 O and CoCl 2 ·6H 2 O was dissolved in deionized water and stirred in a magnetic stirrer until dissolved; (2) adding a small amount of ZIF-67 powder with a calcination temperature of 700 °C and ultrasonically stirring until a homogeneous solution; (3) transferring the obtained solution to a reaction kettle, Reacted at 160°C for 2h, then cooled to room temperature; (4) The obtained product was washed alternately with deionized water and absolute ethanol, then placed in a constant temperature drying oven at 60°C for 24h, taken out and ground to obtain the ZIF-67 derived CoO 4 (5) Soak in acetone for 10 minutes, then add ethanol to wash for 10 minutes, and finally add 2mol / L hydrochloric acid for ultrasonic cleaning for 10 ...

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 provides a method for preparing an electrode of ZIF-derived CoMoO4. the method is characterized in that the method uses a high temperature calcined ZIF-67 as a precursor to prepare CoMoO4 by hydrothermal method., that steps are as follow: (1) molybdate and a compound containing a Co salt are taken and stirred in deionized water until the molybdate and the compound contain the Co saltare dissolved; (2) a small amount of ZIF-67 power are added, stirred to a homogeneou solution; 3, that mixture is transferred to a reaction kettle, and the mixture is cooled to room temperature afterreaction for 2h; (4) alternately cleaning and drying are performed for 24h; (5) Ultrasonic cleaning is performed for 30 min, deionized water cleaning and ultrasonic are performed, drying is performedfor 12 h; 6) that graphite paper is dried at constant temperature, the required material is ground in a mortar, a small amount of solvent is added, uniformly dropping on the dried sheet layer, and then drying is performed, and 7) a regular-shaped electrode of ZIF-derived CoMoO4 is performed. The invention overcomes the problems of poor stability and small specific capacitance of metal oxide electrode in the prior art, and provides a preparation method of CoMoO4 derived from metal oxide electrode material ZIF with high specific capacity and good stability.

Description

technical field [0001] The invention relates to the technical field of material science, in particular to the preparation of ZIF electrodes. Background technique [0002] Electrode materials are an important part of supercapacitors, which largely determine the performance of supercapacitors. Nowadays, research on supercapacitors mainly focuses on electrode materials. Electrode materials can be divided into three categories: carbon-based materials, transition metal oxides, and conductive polymer materials. Carbon-based materials adopt the electric double layer capacitive energy storage mechanism, which are mainly used as electrode materials such as carbon fiber, graphene, carbon cloth, carbon aerogel, carbon nanotubes, and activated carbon. Carbon materials have the characteristics of large specific surface area, high cycle stability, and good conductivity, and are ideal as electrode materials for supercapacitors. Metal oxides and conductive polymers are based on the pseud...

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
IPC IPC(8): H01G11/86H01G11/24H01G11/46
CPCH01G11/24H01G11/46H01G11/86Y02E60/13
Inventor 朱光张莉
Owner 盐城市盐南高新区都市产业发展有限公司
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
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com