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

Delafossite structure CuFeO2 powder and preparation method and application thereof

A kind of copper iron ore, powder technology, applied in chemical instruments and methods, iron compounds, inorganic chemistry and other directions, can solve problems such as unfavorable large-scale industrial production, complex process, long cycle, etc., to achieve convenient industrial production, good repeatability, short cycle effect

Active Publication Date: 2018-11-30
GUANGDONG UNIV OF TECH
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the invention is to overcome the preparation of delafossite CuFeO in the prior art 2 The method cycle is long, the cost is high, the process is complex, the energy consumption is high, and it is not conducive to the defects and deficiencies of large-scale industrial production, and a copper iron ore structure CuFeO is provided. 2 Powder 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
  • Delafossite structure CuFeO2 powder and preparation method and application thereof
  • Delafossite structure CuFeO2 powder and preparation method and application thereof
  • Delafossite structure CuFeO2 powder and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a delafossite structure CuFeO 2 Method of powder preparation. details as follows.

[0033] (1) 0.01 mol of Cu (NO 3 ) 2 ·3H 2 O and 0.01 mol of Fe (NO 3 ) 3 9H 2 O was dissolved in deionized water (40 mL), then 0.02 mol of citric acid and 0.5 g of PEG20000 were added, and the whole mixture was fully stirred to dissolve to obtain Cu-containing 2+ and containing Fe 3+ aqueous solution; then slowly add NH 3 ·H 2 O, adjust the pH value of the solution in the range of 2-3, and obtain the reaction precursor after fully stirring.

[0034] (2) The precursor solution was dried in a drying oven at 110 °C for 24 h, the obtained powder was ground with an agate mortar, and then the sample was placed in an atmosphere furnace, and the temperature was raised to Incubate at 1100°C for 5 h, and feed in N at a flow rate of 200 sccm 2 after N 2 Cool with the furnace in the atmosphere to obtain the sample.

Embodiment 2

[0036] This embodiment provides a delafossite structure CuFeO 2 The preparation method of the powder, except that the consumption of citric acid is 0.04mol, all the other steps and conditions are consistent with Example 1.

[0037] This example can successfully prepare delafossite structure CuFeO 2 powder.

Embodiment 3

[0039] This embodiment provides a delafossite structure CuFeO 2 The preparation method of the powder is consistent with that of Example 1 except that 1 g of PEG2000 is selected.

[0040] This example can successfully prepare delafossite structure CuFeO 2 powder.

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 delafossite structure CuFeO2 powder and a preparation method and application thereof. The preparation method comprises the following steps: S1: dissolving bivalent copper salt and trivalent iron salt, adding citric acid and PEG, stirring and dissolving, adjusting the PH value to 2 to 3 with NH3.H2O to obtain a reaction precursor; and S2: drying the reaction precursor, grinding the precursor into powder and performing annealing treatment, wherein the process of the annealing treatment is: in an air atmosphere, raising the temperature to 900 DEG C to 1200 DEG C at a heating rate of 5 DEG C to 15 DEG C / min, keeping the temperature for 4 hours and 6 hours, and then cooling in an inert atmosphere. The preparation method provided by the invention has the advantages ofshort cycle, high purity and suitability for mass preparation and industrial production; and the prepared CuFeO2 has high hole mobility, good photochemical stability and high conduction band energy.

Description

technical field [0001] The invention belongs to the field of synthesis and preparation of delafossite structure, in particular to CuFeO with a delafossite structure 2 Powders and methods of preparation and applications thereof. Background technique [0002] Ternary copper-containing oxides (dauferite structure) have the advantages of high hole mobility, photochemical stability, and high conduction band energy, as well as special optical, electrical, and magnetic properties. They are used in photocatalysts, light-emitting diodes, lithium Ion batteries and fluorescent materials have a wide range of applications. CuFeO 2 As one of the ternary copper-containing oxides (a delafossite structure), it is composed of abundant, cheap and easy-to-obtain Cu and Fe elements on the earth, and is an environmentally friendly p-type photocatalytic material. [0003] Current technology for the preparation of delafossite CuFeO 2 The cycle is long, the required equipment is expensive, the p...

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): B01J23/745C01G49/00C09K11/60
CPCC09K11/602C01G49/0018B01J23/745C01P2004/03C01P2002/72C01P2002/85B01J35/39
Inventor 毛凌波刘灵云
Owner GUANGDONG UNIV OF 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