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

Controllable preparation method of rare earth doped lanthanum manganese oxide nanotube

A manganese oxide, rare earth doping technology, applied in the direction of nanotechnology, manganate/permanganate, etc., to achieve the effect of controllable length, controllable tube wall thickness, and easy industrial production

Inactive Publication Date: 2013-08-21
安徽出入境检验检疫局检验检疫技术中心 +1
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of lanthanum-doped manganese dioxide or lanthanum oxide nanotubes has not been reported

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Place the anodized aluminum oxide membrane (AAM) nanoporous template with a pore size of 20 nanometers and a thickness of 20 microns on a vacuum filtration device, and check the airtightness after the edge of the anodized aluminum oxide membrane (AAM) nanoporous template is sealed, and then connect to the vacuum system. Preparation of lanthanum nitrate La(NO 3 ) 3 (concentration range 0.05-0.1M) and manganese sulfate MnSO 4 (concentration range 0.01-0.05M) mixed solution (hereinafter referred to as A), 0.01M sodium hydroxide NaOH solution (hereinafter referred to as B), the equal volumes of A and B are alternately added to the anodized aluminum oxide film (AAM), in Under negative pressure (vacuum degree 10kPa), A and B are attached to the nanopore wall of the anodic aluminum oxide membrane (AAM) by using the wall attachment effect of the solution, and a precipitation reaction occurs to form lanthanum manganese hydroxide LaMn(OH) x , the lanthanum manganese hydroxide...

Embodiment 3

[0018] Place the anodized aluminum oxide membrane (AAM) nanoporous template with a pore size of 100 nanometers and a thickness of 30 microns on a vacuum filtration device. After sealing the edge of the anodized aluminum oxide membrane (AAM) nanoporous template, check the airtightness, and then connect it to Vacuum system. Preparation of lanthanum nitrate La(NO 3 ) 3 (concentration range 0.05-0.1M) and manganese sulfate MnSO 4 (concentration range 0.01-0.05M) mixed solution (hereinafter referred to as A), 0.01M sodium hydroxide NaOH solution (hereinafter referred to as B), the equal volumes of A and B are alternately added dropwise to the anodic aluminum oxide membrane (AAM) nanoporous template Above, under negative pressure (vacuum degree 15kPa), using the wall attachment effect of the solution, A and B are attached to the nanopore wall of the anodized aluminum oxide membrane (AAM) nanopore template and undergo a precipitation reaction to form lanthanum manganese hydroxide ...

Embodiment 4

[0020] Place the anodized aluminum oxide membrane (AAM) nanoporous template with a pore size of 250 nanometers and a thickness of 40 microns on a vacuum filtration device. After sealing the edge of the anodized aluminum oxide membrane (AAM) nanoporous template, check the airtightness, and then connect it to Vacuum system. Preparation of lanthanum nitrate La(NO 3 ) 3 (concentration range 0.05-0.1M) and manganese sulfate MnSO 4 (concentration range 0.01-0.05M) mixed solution (hereinafter referred to as A), 0.01M sodium hydroxide NaOH solution (hereinafter referred to as B), the equal volumes of A and B are alternately added dropwise to the anodic aluminum oxide membrane (AAM) nanoporous template Above, under negative pressure (vacuum degree 15kPa), using the wall attachment effect of the solution, A and B are attached to the nanopore wall of the anodized aluminum oxide membrane (AAM) nanopore template and undergo a precipitation reaction to form lanthanum manganese hydroxide ...

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
lengthaaaaaaaaaa
pore sizeaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a controllable preparation method of a rare earth doped lanthanum manganese oxide nanotube. Specifically, the method comprises the steps of: preparing a La(NO3)3 solution and a MnSO4 solution, mixing the two solutions evenly to obtain a solution A, and taking a sodium hydroxide solution as a solution B; alternatively adding the solution A and the solution B with a same volume dropwisely on an anodic alumina membrane (AAM) nanoporous template, making the solution A and the solution B penetrate the nanopores under a negative pressure and unergo a precipitation reaction, heating the formed nanotube of lanthanum manganese hydroxide LaMn(OH)x in a tube furnace, and decomposing the lanthanum manganese hydroxide LaMn(OH)x nanotube to obtain the rare earth doped lanthanum manganese oxide nanotube. The invention combines the AAM template synthesis technology and the vacuum suction filtration technology, utilizes an AAM nanopore channel as a reactor and employs a precipitation reaction principle to prepare the rare earth doped lanthanum manganese (LaMnOx) oxide nanotube. The method has the advantages of simple operation, easy industrial production, and has great application value in the fields of hydrogen storage electrode materials, thermoelectric conversion functional materials, light absorption and light conversion catalytic materials, etc.

Description

[0001] technical field [0002] The invention relates to a controllable preparation method of rare earth doped oxide nanotubes, especially a lanthanum manganese (LaMnO x ) The method for preparing oxide nanotubes belongs to the technical field of preparing inorganic oxide quasi-one-dimensional nanomaterials. Background technique [0003] Since the 4f orbital of rare earth elements is prone to splitting under the influence of the ligand field, and the energy of the 4f and 5d orbitals is very close, it is easy to undergo f-f transition or charge transfer transition, and has rich fluorescence characteristics and the ability to convert ultraviolet or infrared rays into visible light. The hollow structure of quasi-one-dimensional rare-earth-doped oxide nanotubes can provide different contact levels (such as inner and outer surfaces, orifice edges, and tube walls with special structures). Compared with nanoparticles of the same mass, oxide nanotubes have larger Specific surface ar...

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): C01G45/12B82Y40/00
Inventor 徐业平袁孝友汪晓红李村夏茹
Owner 安徽出入境检验检疫局检验检疫技术中心
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