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Preparation method and related products of SrVO3 nanofibers

A nanofiber and soluble technology, applied in the field of nanofibrous webs, can solve the problems of limited application and achieve the effect of low cost and large-scale production

Active Publication Date: 2020-06-12
DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Transparent electrodes are ubiquitous in daily life, but due to the existing preparation process, only three-dimensional or zero-dimensional SrVO can be prepared 3 , its opacity limits its further application in transparent electrodes

Method used

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  • Preparation method and related products of SrVO3 nanofibers
  • Preparation method and related products of SrVO3 nanofibers
  • Preparation method and related products of SrVO3 nanofibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] according to figure 1 As shown in the flowchart, first, weigh 2.11g of strontium nitrate and 1.17g of ammonium metavanadate and dissolve them in 5.22g of heated deionized water, stir until fully dissolved, then add 1.5g of polyvinylpyrrolidone, and stir until the solution is clear to obtain static electricity. spinning solution. Then, the above electrospinning solution was transferred to an electrospinning device. Further, the parameters of electrospinning are set as follows: electrospinning voltage 12kV, spinning rate 2mL / h, spinning distance 15cm, ambient humidity 50%, ambient temperature 25°C, and using a receiving device, such as electrospinning The substrate of the device receives the precursor nanofibers. Finally, the collected precursor nanofibers were pre-oxidized and calcined at 500°C in the air, the heating rate was set at 5°C / min, and the holding time was 2h; then the SrO / V 2 o 5 The oxide nanofibers were transferred to a hydrogen tube furnace, the heatin...

Embodiment 2

[0058] according to figure 1 As shown in the flowchart, first, weigh 2.11g of strontium nitrate and 1.17g of ammonium metavanadate and dissolve them in 5.22g of heated deionized water, stir until fully dissolved, then add 1.5g of polyvinylpyrrolidone, and stir until the solution is clear to obtain static electricity. spinning solution. Then, the above-mentioned electrospinning solution was transferred to the electrospinning equipment, and the parameters of the electrospinning were set as: electrospinning voltage 12kV, spinning rate 2mL / h, spinning distance 15cm, ambient humidity 50%, ambient The temperature is 25 °C, and the precursor nanofibers are received using a receiving device, such as a substrate of an electrospinning device. Finally, the collected precursor nanofibers were pre-oxidized and calcined at 500°C in the air, the heating rate was set at 5°C / min, and the holding time was 2h; then the pre-oxidized and calcined fibers in the air were transferred to the hydrogen...

Embodiment 3

[0060] according to figure 1 As shown in the flowchart, first, weigh 2.11g of strontium nitrate and 1.17g of ammonium metavanadate and dissolve them in 5.22g of heated deionized water, stir until fully dissolved, then add 1.5g of polyvinylpyrrolidone, and stir until the solution is clear to obtain static electricity. spinning solution. Then, the above-mentioned electrospinning solution was transferred to the electrospinning equipment, and the parameters of the electrospinning were set as: electrospinning voltage 12kV, spinning rate 2mL / h, spinning distance 15cm, ambient humidity 50%, ambient The temperature is 25 °C, and the precursor nanofibers are received using a receiving device, such as a substrate of an electrospinning device. Finally, the collected precursor nanofibers were pre-oxidized and calcined at 500°C in the air, the heating rate was set at 5°C / min, and the holding time was 2h; then the pre-oxidized and calcined fibers in the air were transferred to the hydrogen...

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Abstract

The present invention provides a preparation method and related products of SrVO3 nanofibers. The method comprises the steps of dissolving a strontium-containing soluble compound and a vanadium-containing soluble compound in a solvent, adding a macromolecular binding agent, and stirring the components uniformly to obtain an electrostatic spinning solution; transferring the electrostatic spinning solution into an electrostatic spinning device for electrostatic spinning to obtain precursor nanofibers and; putting the precursor nanofibers into air for peroxidization calcining to obtain SrO / V2O5 nanofibers, and then performing calcining in a reducing atmosphere to obtain the SrVO3 nanofibers of one-dimensional structures. The application structures of traditional block bodies and powder are changed.

Description

technical field [0001] The invention belongs to nanofiber technology, in particular to a kind of SrVO 3 Nanofiber preparation method, and SrVO prepared by the method 3 Nanofibers, containing the SrVO 3 Nanofiber webs of nanofibers. Background technique [0002] According to existing SrVO 3 The preparation method of nanofiber can prepare the obtained SrVO 3 Nanofibers are generally three-dimensional blocks, or zero-dimensional powder structures. [0003] On the one hand, the current preparation of SrVO 3 The process is complicated and costly, such as molecular epitaxy growth method, which requires the use of rare earth metal compounds such as La, resulting in expensive production costs and limiting the production of SrVO 3 wide application. [0004] On the other hand, regarding the one-dimensional continuous nanofibrous structure of SrVO 3 There are still technical gaps. Further, SrVO 3 It is a well-known highly conductive perovskite structure material that can be u...

Claims

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Application Information

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IPC IPC(8): D01F9/08B82Y40/00D01D5/00D04H1/4382D04H1/728C01G31/00
CPCD01F9/08B82Y40/00D01D5/0015D01D5/0092D01D5/0069D04H1/4382D04H1/728C01G31/00C01P2004/10C01P2002/72C01P2004/04C01P2004/03C01P2002/77
Inventor 胡三元杨远博夏振宇谌庆春彭果戈周政何凤荣
Owner DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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