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

One-dimensional micro-nanorod LiMgVO4 material and preparation method thereof

A micro-nano, rod-shaped technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of large particle size, low sample purity, difficult to control, etc., and achieve high material purity, good crystal morphology, and size. small effect

Active Publication Date: 2018-10-12
DALIAN UNIV OF TECH
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Currently, LiMgVO 4 The materials are prepared by the traditional solid-phase method, the samples obtained have low purity and large particle size, and it is difficult to control the synthesized LiMgVO 4 appearance

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
  • One-dimensional micro-nanorod LiMgVO4 material and preparation method thereof
  • One-dimensional micro-nanorod LiMgVO4 material and preparation method thereof
  • One-dimensional micro-nanorod LiMgVO4 material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Molar ratio (LiOH·H 2 O:MgO:NH 4 VO 3 =1:1:1), take respectively the lithium hydroxide of 0.316g, the magnesium oxide of 0.276g and the ammonium metavanadate of 0.800g as raw material, grind this raw material 15min and make it mix homogeneously; Take by weighing 1.454g in addition The sodium nitrate of 1.729g and the potassium nitrate of 1.729g, grind 15min to make it mix homogeneously, as the mixed molten salt (NaNO 3 -KNO 3 ). The molten salt was mixed with the raw material and ground for 2 minutes to obtain a precursor; the precursor obtained above was transferred to a heating furnace for heat treatment in an air atmosphere, the heat treatment temperature was 300 ° C, and the reaction time was 3 hours. When the reaction time expired, LiMgVO was obtained after natural cooling 4 -Salt mixed powder; LiMgVO obtained above 4 -Salt mixed powder was washed with deionized water several times to remove the molten salt, filtered and dried at 100°C for 3 hours to obtain r...

Embodiment 2

[0034] The difference between this embodiment and embodiment 1 is that the heat treatment temperatures are respectively 300°C and 400°C, and the specific implementation process is as follows:

[0035] Molar ratio (LiOH·H 2 O:MgO:NH 4 VO 3 =1:1:1), take respectively the lithium hydroxide of 0.316g, the magnesium oxide of 0.276g and the ammonium metavanadate of 0.800g as raw material, grind this raw material 15min and make it mix homogeneously; Take by weighing 1.454g in addition The sodium nitrate of 1.729g and the potassium nitrate of 1.729g, grind 15min to make it mix homogeneously, as the mixed molten salt (NaNO 3 -KNO 3 ). Mix and grind the molten salt with the raw material for 2 minutes to obtain a precursor; transfer the precursor obtained above to a heating furnace, and perform heat treatment in an air atmosphere. The heat treatment temperatures are 300°C and 400°C respectively, and the reaction time is 3h. When the time expires, LiMgVO is obtained after natural coo...

Embodiment 3

[0038] The difference between this embodiment and Example 1 is that the reaction times are respectively 1h, 3h and 5h, and the specific implementation process is as follows:

[0039] Molar ratio (LiOH·H 2 O:MgO:NH 4 VO 3 =1:1:1), take respectively the lithium hydroxide of 0.316g, the magnesium oxide of 0.276g and the ammonium metavanadate of 0.800g as raw material, grind this raw material 15min and make it mix homogeneously; Take by weighing 1.454g in addition The sodium nitrate of 1.729g and the potassium nitrate of 1.729g, grind 15min to make it mix homogeneously, as the mixed molten salt (NaNO 3 -KNO 3 ). The molten salt was mixed with raw materials and ground for 2 minutes to obtain a precursor; the precursor obtained above was transferred to a heating furnace, and heat-treated in an air atmosphere at a temperature of 300°C, and the reaction time was 1 h, 3 h, and 5 h, respectively. When the reaction time expired, LiMgVO was obtained after natural cooling 4 -Salt mix...

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
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a one-dimensional micro-nanorod LiMgVO4 material and a preparation method thereof and belongs to the technical field of inorganic non-metallic material preparation. The method is based on a molten salt method, MgO, LiOH.H2O and NH4VO3 are used as raw materials, NaNO3 and KNO3 are used as mixed molten salt, and the raw materials and the molten salt are ground to be uniformlymixed; a precursor obtained through grinding is transferred to a heating furnace and subjected to thermal treatment in the air atmosphere at 300-400 DEG C to react for 1-5 h, and LiMgVO4-salt mixed powder is obtained after natural cooling; the mixed powder is repeatedly washed with deionized water for removal of molten salt, and the rod-like LiMgVO4 material is obtained after filtration and drying. Compared with a solid phase method, the preparation method has the advantages that the preparation temperature of the LiMgVO4 material is decreased from 600 DEG C to 300 DEG C and energy consumptioncan be reduced; the obtained sample has high purity, good rod-like particle dispersity and smaller size and has the diameter of 50-100 nm, the length of 200-600 nm and the length-diameter ratio of 4-10; the preparation condition of the method is simple and controllable, the operation process is convenient, and mass production is easy to realize.

Description

technical field [0001] The invention relates to the technical field of preparation of inorganic non-metallic materials, in particular to a LiMgVO with one-dimensional micro-nano rods 4 Materials and preparation methods. Background technique [0002] Nanomaterials, because of their unique surface effects, quantum size effects, macroscopic quantum tunneling effects and volume effects and their applications in magnetism, nonlinear optics, light emission, photoconductivity, thermal conductivity, catalysis, chemical activity, sensitive properties, electricity and thermal The peculiar properties exhibited by such aspects have aroused extensive attention of material scientists. Since the discovery of carbon nanotubes in 1991, research on low-dimensional nanomaterials, such as linear, ribbon, rod and tubular nanomaterials, has been increasing at home and abroad. Low-dimensional nanomaterials are also used in many fields due to their unique properties. Such as lithium-ion batteries...

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): C01G31/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G31/006C01P2002/72C01P2004/03C01P2004/64
Inventor 王立秋丁凯峰
Owner DALIAN UNIV OF TECH
Features
  • Generate Ideas
  • 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