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

Method for preparing porous structure delafossite crystalline material

A technology of crystalline materials and porous structures, applied in chemical instruments and methods, iron compounds, inorganic chemistry, etc., can solve the problems of small specific surface area and disadvantage, and achieve the effects of good repeatability, easy operation and wide source.

Inactive Publication Date: 2017-07-07
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the CuFeO prepared by these methods 2 The surface is smooth and the specific surface area is small, which is not conducive to giving full play to its characteristics

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
  • Method for preparing porous structure delafossite crystalline material
  • Method for preparing porous structure delafossite crystalline material
  • Method for preparing porous structure delafossite crystalline material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1) Dissolve 4 g of NaOH in 30 ml of deionized water and stir to form a uniform mixture.

[0036] 2) Add 0.005 mol of Cu(NO 3 ) 2 and FeSO 4 After dissolving in 10 ml of water, after the dissolution is complete, mix the two solutions, and then add to step 1) the mixture dropwise to form a slightly yellow mixture.

[0037] 3) After stirring and ultrasonicating the mixture obtained in step 2) respectively for 30 minutes, add 0.5ml of propionaldehyde, transfer it to a 100ml hydrothermal kettle, and react for 24 hours at a temperature of 160°C, and then use Wash with absolute ethanol 3 times and then wash with deionized water until neutral, dry by centrifugal, and grind.

Embodiment 2

[0039] 1) Weigh 0.25 g of PEG (polyethylene glycol with a molecular weight of 20,000) and dissolve it in 30 ml of deionized water. After the dissolution is complete, add 4 g of NaOH to dissolve in the PEG mixture and stir to form a uniform mixture.

[0040] 2) Add 0.005 mol of Cu(NO 3 ) 2 and FeSO 4 After dissolving in 10 ml of water, after the dissolution is complete, after mixing the two solutions, add dropwise to the mixture in step 1 to form a slightly yellow mixture.

[0041] 3) After stirring and ultrasonicating the mixture obtained in step 2) respectively for 30 minutes, add 0.5ml of propionaldehyde, transfer it to a 100ml hydrothermal kettle, and react for 24 hours at a temperature of 160°C, and then use Wash with absolute ethanol three times and then wash with deionized water until neutral, centrifugally dry, grind, and set aside.

[0042] 4) Place the sample obtained in step 3) in a muffle furnace, 2 Under flow protection, after calcination at 450 °C for 4 h, the...

Embodiment 3

[0045] (1) Weigh 0.4 g of PEG (molecular weight: 20,000) and dissolve it in 30 ml of deionized water. After the dissolution is complete, add 4 g of NaOH to dissolve in the PEG mixture and stir to form a uniform mixture.

[0046] (2) Add 0.005 mol of Cu(NO 3 ) 2 and FeSO 4 After dissolving in 10 ml of water, after the dissolution is complete, after mixing the two solutions, add dropwise to the mixture in step 1 to form a slightly yellow mixture.

[0047] (3) Stir and sonicate the mixture obtained in step 2 for 30 min respectively, add 0.8 ml of propionaldehyde, transfer to a 100 ml hydrothermal kettle, and react for 24 hours at a temperature of 180°C. Wash with absolute ethanol for 3 times and then with deionized water until neutral, centrifugally dry, grind, and set aside.

[0048] (4) Place the sample obtained in step 3) in a muffle furnace, 2 Under flow protection, after calcination at 500 °C for 4 h, the obtained sample is porous CuFeO 2 crystal material.

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 discloses a method for preparing a porous structure delafossite crystal material. In the method, PEG is used as a template and mixed with a precursor solution containing Fe2+ and Cu2+, and then CuFeO2 is prepared by a hydrothermal method, and then calcined to remove PEG to form a porous Structure delafossite crystal material CuFeO2. The method of the invention is simple, the process is easy to control and the specific surface area of ​​the product is large.

Description

technical field [0001] The invention belongs to the technical field of material engineering, and in particular relates to a preparation method of a porous structure delafossite crystal material. Background technique [0002] In 1873, Friedel named the oxides of copper and iron Delafosite in memory of the French mineralogist Gabriel Delafosse. In 1946, Pabst first synthesized and reported CuFeO with a delafossite structure 2 The material has a hexagonal layered crystal structure. CuFeO 2 Medium Cu atomic layer and FeO 2 Atomic layer has ABAB...and ABCABC...two stacking methods to form two space structures of hexagonal 2H and rhombohedral R3m. CuFeO 2 It is a typical p-type semiconductor, and it has attracted the attention of researchers because of its great application potential in photocatalytic materials, solar photovoltaic panels, ferroelectric materials, etc. [0003] At present, 2H-CuFeO is usually prepared by solid-state reaction method, sol-gel method, hydrotherm...

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): C01G49/00
CPCC01G49/0018C01P2002/72C01P2002/85C01P2004/03C01P2004/22C01P2004/61C01P2004/62C01P2006/12
Inventor 李瑞桢徐秋鹏黄勇王成端刘兴勇
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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