Preparation of carbon nano-tube(MWCNTs)/manganese-zinc ferrite(Mn1-xZnxFe2O4) magnetic nano material by alcohol-thermal method

A technology of manganese zinc ferrite and carbon nanotubes, which is applied in the direction of magnetism of inorganic materials, to achieve the effect of pure crystal phase, strong magnetic induction sensitivity, and easy industrial production

Inactive Publication Date: 2009-08-05
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

MWCNTs/Mn have not been prepared by alcohol thermal method 1

Method used

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  • Preparation of carbon nano-tube(MWCNTs)/manganese-zinc ferrite(Mn1-xZnxFe2O4) magnetic nano material by alcohol-thermal method
  • Preparation of carbon nano-tube(MWCNTs)/manganese-zinc ferrite(Mn1-xZnxFe2O4) magnetic nano material by alcohol-thermal method
  • Preparation of carbon nano-tube(MWCNTs)/manganese-zinc ferrite(Mn1-xZnxFe2O4) magnetic nano material by alcohol-thermal method

Examples

Experimental program
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Effect test

Embodiment 1

[0026]Weigh 0.15g MWCNTs into a three-necked flask, then add 50ml (18mol / L) concentrated nitric acid, ultrasonically disperse for 40min, then raise the temperature to 100°C, and acidify for 24h. After the reaction, the carbon tube suspension was filtered, washed and dried to obtain MWCNTs after acidification treatment. Then weigh 1.351g of ferric chloride, 0.1487g of zinc nitrate hexahydrate, and 0.338g of manganese sulfate monohydrate into a three-necked flask, then add 50ml of ethylene glycol, and then add the above-mentioned acidified MWCNTs, and ultrasonically disperse for 45 minutes. After the ultrasonic dispersion is completed, add 3.6g of anhydrous sodium acetate and 1.2ml of polyethylene glycol 200, and mechanically stir for 30 minutes at a rotation speed of 500 rpm. After the solution is completely dissolved, pour the above solution into the reaction kettle , heated up to 200°C, and reacted for 10h. At the end of the reaction, the product was collected with a magnet,...

Embodiment 2

[0028] Weigh 0.1g MWCNTs into a three-necked flask, then add 60ml (15mol / L) concentrated nitric acid, ultrasonically disperse for 20min, then raise the temperature to 120°C, and acidify for 30h. After the reaction, the carbon tube suspension was filtered, washed and dried to obtain MWCNTs after acidification treatment. Then weigh 1.486g of ferric chloride, 0.655g of zinc nitrate hexahydrate, and 0.093g of manganese sulfate monohydrate into a three-necked flask, then add 50ml of ethylene glycol, and then add the above-mentioned acidified MWCNTs, and ultrasonically disperse for 45 minutes. After ultrasonic dispersion, add 4.42g of anhydrous sodium acetate, 1ml of polyethylene glycol 200, and mechanically stir for 20min at a rotation speed of 700 rpm. To 190°C, react for 11h. At the end of the reaction, the product was collected with a magnet, washed with deionized water, and then vacuum-dried at 60 °C for 18 h to obtain MWCNTs / Mn 1-x Zn x Fe 2 o 4 nanocomposites. XRD test ...

Embodiment 3

[0030] Weigh 0.12g MWCNTs into a three-necked flask, then add 45ml (16mol / L) concentrated nitric acid, ultrasonically disperse for 25min, then raise the temperature to 120°C, and acidify for 24h. After the reaction, the carbon tube suspension was filtered, washed and dried to obtain MWCNTs after acidification treatment. Then weigh 1.486g of ferric chloride, 0.491g of zinc nitrate hexahydrate, and 0.186g of manganese sulfate monohydrate into a three-necked flask, then add 50ml of ethylene glycol, and then add the above-mentioned acidified MWCNTs, and ultrasonically disperse for 50 minutes. After ultrasonic dispersion, add 4.62g of anhydrous sodium acetate, 1.1ml of polyethylene glycol 200, and mechanically stir for 40 minutes at a rotation speed of 600 rpm. After completely dissolving, pour the above solution into the reaction kettle. Raise the temperature to 210°C and react for 9h. At the end of the reaction, the product was collected with a magnet, washed with deionized wate...

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Abstract

The invention relates to an alcohol-thermal method for preparing a carbon nano tube (MWCNTs)/ manganese-zinc ferrite (Mn1-xZnxFe2O4) magnetic nano-material. The method is mainly characterized in that the carbon nano tube, soluble malysite, zinc salt and manganese salt are taken as initial raw materials, and acid with strong oxidizing property is firstly used for acidizing the surface of the MWCNTs,; the acidized MWCNTs is dispersed into glycol solution, and then the malysite, the zinc salt, the manganese salt, anhydrous sodium acetate and dispersant polyethylene glycol are added in; and the lcohol-thermal method is adopted for preparing the (MWCNTs)/ Mn1-xZnxFe2O4 magnetic nano composite material. The prepared (MWCNTs)/ Mn1-xZnxFe2O4 magnetic nano composite material has pure crystalling phase, good dispersivity, high magnetization, strong magnetic induction sensitivity and simple preparing technique, and is not easy to agglomerate, thus being simple in the requirements for the production equipment and easy for commercial process.

Description

technical field [0001] The invention belongs to carbon nanotube (MWCNTs) / manganese zinc ferrite (Mn 1-x Zn x Fe 2 o 4 ) field of preparation of magnetic nanocomposites, especially the preparation of carbon nanotubes (MWCNTs) / manganese zinc ferrite (Mn 1-x Zn x Fe 2 o 4 ) method of magnetic nanomaterials. Background technique [0002] Because of their unique structure, electricity, mechanics, and hydrogen storage properties, carbon nanotubes have broad application prospects in many new fields such as nanoelectronic devices, super composite materials, hydrogen storage materials, and catalyst carriers. Carbon nanotubes are one-dimensional nanomaterials with hollow structures and high aspect ratios. Therefore, the assembly of one-dimensional nanoscale magnetic carbon nanotube composites has become one of the research hotspots. Cao et al reported in Journal of Macromolecular Science, Part B: Physics, 541, 45, (2006) that Ni was prepared by hydrothermal synthesis 0.75 Zn ...

Claims

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Application Information

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IPC IPC(8): H01F1/01H01F1/10H01F1/34C01B31/02C04B35/622
Inventor 李耀刚张祺刘兴华王宏志张青红朱美芳
Owner DONGHUA UNIV
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