Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A bimetallic composite material with an open 3D structure and its preparation method and application

A composite material and bimetal technology, applied in the field of bimetallic composite materials with open 3D structure and their preparation, can solve the problems of large volume effect and poor stability, and achieve the effect of good electrochemical performance and large application potential.

Active Publication Date: 2022-02-08
SHAANXI UNIV OF SCI & TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an electrode material for battery-type hybrid capacitors, nickel phosphide has obvious advantages and disadvantages
The advantage is that it has metal-like properties and high electronic conductivity, but the material also has corresponding deficiencies, such as large volume effect, poor stability, etc.

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 bimetallic composite material with an open 3D structure and its preparation method and application
  • A bimetallic composite material with an open 3D structure and its preparation method and application
  • A bimetallic composite material with an open 3D structure and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1: Dissolve 1.32g 2-methylimidazole in a mixed solution of 40mL absolute ethanol and water (v / v=1:1), and 2mmol (0.582g) Ni(NO 3 ) 2 ·6H 2 O was dissolved in the above solution, stirred at room temperature for 30 min until the solution turned yellow-green, and stood at room temperature for 24 h. The prepared yellow precipitate was washed with absolute ethanol several times to ensure that all ions not involved in the coordination were removed, and the product was centrifuged at a high speed of 10000r / min, and the centrifuged material was placed in a vacuum oven at 70°C for drying. After 24h, the final product was collected for use in the next step.

[0031] Step 2: Grind the Ni-MOF prepared in the previous step into powder, weigh 0.23g and dissolve it in 30mL of absolute ethanol solution, in which 0.05g of SnCl was dissolved in advance 2 2H 2 O, after stirring at room temperature for 30min, the mixture was transferred to a polytetrafluoroethylene-lined reactor w...

Embodiment 2

[0035] With embodiment 1 step 2) in SnCl 2 2H 2 The amount of O was changed to 0.1g, and other conditions remained unchanged.

[0036] By testing the XRD of the product, it can be seen that the obtained black powder is Sn@Ni 2P / C, through the scanning electron microscope observation, the composite material presents an irregular flower-like structure, the size is about 1um, the irregular flowers are gathered together, and the surface is composed of a large number of small spines

Embodiment 3

[0038] With embodiment 1 step 2) in SnCl 2 2H 2 The amount of O was changed to 0.15g, and other conditions remained unchanged.

[0039] By testing the XRD of the product, it can be seen that the obtained black powder is Sn@Ni 2 P / C, observed by scanning electron microscope, the composite material presents an obvious rod-like structure. With the increase of Sn content, the rod structure is more obvious and larger in size, and even agglomerated structure appears.

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
sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a bimetallic composite material with an open 3D structure, a preparation method and application thereof, and belongs to the technical field of material preparation. Sn@Ni 2 The preparation process of P / C composites includes three parts, the initial aging process, the intermediate ion exchange process, and the subsequent calcination process. Based on the growth rules of crystals, many nanoparticles with irregular shapes are formed at room temperature, and then Sn 2+ , a small amount of Ni on the surface of the precursor 2+ By Sn 2+ At the same time, the nanoparticles began to grow along the one-dimensional direction to form a cylindrical Sn@Ni‑MOF. In the final calcination and phase transformation process, the NaH 2 PO 2 PH generated 3 The gas contacts the Ni ions on the cylindrical surface to form Sn@Ni 2 P / C nanorods, as the conversion process proceeds, the Ni ions inside the cylinders are also converted to Ni 2 P, which dissolves the precursor of the original cylindrical structure, finally forms a 3D open structure microflower composed of a large number of nanorods.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to a bimetallic composite material with an open 3D structure and a preparation method and application thereof. Background technique [0002] With the development of human society and the improvement of living standards, human consumption of energy and resources has reached the limit, which has led to the destruction of the environment and the depletion of non-renewable resources, so it is necessary to vigorously develop new energy technologies and high-performance energy storage devices to resolve this contradiction. As a new type of energy storage device between traditional capacitors and rechargeable batteries, supercapacitors have the advantages of short charging time, large storage capacity, high power density, long cycle life, and wide operating temperature range. and other fields have extremely important applications. In recent years, transition meta...

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 Patents(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/30H01G11/32
CPCH01G11/86H01G11/24H01G11/30H01G11/32
Inventor 刘淑玲崔显胥亚亚
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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