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a fe 2 o 3 Preparation method of nano-film coiled tube

A nano-film and nano-film technology, applied in the direction of iron oxide/iron hydroxide, iron oxide, etc., can solve the problems of incomplete template removal, cumbersome and complicated steps, polluted materials, etc., achieving convenient operation, simple preparation process, and scientific principle. Effect

Inactive Publication Date: 2017-07-04
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Currently, Fe 2 o 3 The preparation of tubular structural materials mainly adopts chemical methods. The literature "J.Chen, L.Xu, W.Li, X.Gou, Advanced Materials, 2005, 17, 582–586" reported the use of porous anodized alumina as a template to prepare Fe 2 o 3 The method of nanotubes; the literature "Z.Sun, H.Yuan, Z.Liu, B.Han, X.Zhang, Advanced Materials, 2005, 17, 2993–2997" reported the use of carbon nanotubes as templates to prepare Fe 2 o 3 The method of nanotubes; the literature "Jinping Liu, Yuanyuan Li, Hongjin Fan, Zhihong Zhu, Jian Jiang, Ruimin Ding, Yingying Hu, Xintang Huang, Chem.Mater.,2010,22,212–217" reported the use of ZnO nanorod arrays as Template preparation of Fe 2 o 3 The method of nanotubes; the literature "Zhiyu Wang, Deyan Luan, Srinivasan Madhavi, Chang Ming Li, Xiong Wen Lou, Chem.Commun., 2011, 47, 8061-8063" reported the use of Cu nanowires as templates to prepare Fe(OH) x nanotubes, which were then calcined at 300°C to obtain Fe 2 o 3 The method of nanotubes; the above method needs to use a template as the medium of the hollow structure, the steps are cumbersome and complicated, and there is a risk of contaminating the material due to incomplete removal of the template

Method used

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  • a fe <sub>2</sub> o <sub>3</sub> Preparation method of nano-film coiled tube
  • a fe <sub>2</sub> o <sub>3</sub> Preparation method of nano-film coiled tube
  • a fe <sub>2</sub> o <sub>3</sub> Preparation method of nano-film coiled tube

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Embodiment 1

[0021] This embodiment prepares Fe 2 o 3 The specific process of nano-film crimping tube is as follows: first, deposit a layer of Al with a thickness of 50nm on the striped side of the aluminum foil using an electron beam evaporation coater 2 o 3 Nano film, a layer of Ti nano film with a thickness of 10nm, and a layer of Fe nano film with a thickness of 50nm; then put the aluminum foil in a NaOH solution with a concentration of 1M for 3h, and remove the Al by chemical corrosion. 2 o 3 and Ti nano-membrane, at the same time, Fe nano-membrane curled into a tubular structure under the released stress, and the resulting product was filtered and washed 3 times with deionized water, and then filtered and washed 3 times with ethanol and isopropanol successively, and then The filtered and washed product was subjected to CO 2 Supercritical drying for 12 hours to obtain Fe coiled tubes, and finally annealing the Fe coiled tubes in a tube furnace at 450 °C for 2 hours to prepare Fe ...

Embodiment 2

[0024] This embodiment prepares Fe 2 o 3 The specific process of nano-film crimping tube is as follows: first, deposit a layer of Al with a thickness of 50nm on the striped side of the aluminum foil using an electron beam evaporation coater 2 o 3 Nano film, a layer of 20nm thick Ti nano film, a layer of 20nm thick Fe nano film; then put the aluminum foil in a NaOH solution with a concentration of 1M for 3h, remove the Al by chemical corrosion 2 o 3 and Ti nano-membrane, at the same time, Fe nano-membrane curled into a tubular structure under the released stress, and the resulting product was filtered and washed 3 times with deionized water, and then filtered and washed 3 times with ethanol and isopropanol successively, and then The filtered and washed product was subjected to CO 2 Supercritical drying for 12 hours to obtain Fe coiled tubes, and finally annealing the Fe coiled tubes in a tube furnace at 450 ° C for 2 hours to prepare Fe 2 o 3 Nanomembrane crimp tube.

[...

Embodiment 3

[0027] This embodiment prepares Fe 2 o 3 The specific process of nano-film crimping tube is as follows: first, deposit a layer of Al with a thickness of 50nm on the striped side of the aluminum foil using an electron beam evaporation coater 2 o 3 Nano film, a layer of 20nm thick Ti nano film, a layer of 35nm thick Fe nano film; then put the aluminum foil into the NaOH solution with a concentration of 1M for 3h, remove the Al by chemical corrosion 2 o 3 and Ti nano-membrane, at the same time, Fe nano-membrane curled into a tubular structure under the released stress, and the resulting product was filtered and washed 3 times with deionized water, and then filtered and washed 3 times with ethanol and isopropanol successively, and then The filtered and washed product was subjected to CO 2 Supercritical drying for 12 hours to obtain Fe coiled tubes; finally, the Fe coiled tubes were annealed in a tube furnace at 450 °C for 2 hours to prepare Fe 2 o 3 Nanomembrane crimp tube. ...

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Abstract

The invention belongs to the field of technologies for manufacturing nanometer film materials, and relates to a method for manufacturing Fe2O3 nanometer film curled tubes. The method includes manufacturing elementary Fe nanometer film curled tube structures by the aid of electron beam deposition film coating technologies and nanometer film curling technologies; annealing the elementary Fe nanometer film curled tube structures in atmosphere of air to obtain the Fe2O3 nanometer film curled tubes. The method has the advantages that processes for manufacturing the Fe2O3 nanometer film curled tubes are simple, the method is convenient to implement, scientific in principle and free of pollution and is environmentally friendly, the tube wall thicknesses of the Fe2O3 nanometer film curled tubes can be effectively controlled, and the lengths of the Fe2O3 nanometer film curled tubes manufactured by the aid of the method can reach several hundreds of micrometers.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of nano film material preparation and relates to a Fe 2 o 3 The preparation method of micro-nano structure material, especially a kind of Fe 2 o 3 The preparation method of the nano film coiled tube. [0003] Background technique: [0004] Iron oxide is an important transition metal oxide semiconductor material, which has the advantages of non-toxicity, abundant reserves, and stable physical and chemical properties. It is widely used in gas sensors, photocatalysts, lithium-ion batteries, magnetic materials and other research fields. Fe 2 o 3 Nano-film materials have important application prospects in semiconductor devices, and their unique two-dimensional structure is compatible with current semiconductor processing technology, and is very suitable for making curled tubular structures for the preparation of integrated microelectronic devices. [0005] Currently, Fe 2 o 3 The preparation of tub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/06
CPCC01G49/06C01P2004/03C01P2004/13
Inventor 刘相红张军
Owner QINGDAO UNIV
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