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Nano vanadium oxide and method for making same

A vanadium oxide and nanotechnology, which is applied in the field of nanomaterials and nanotechnology, can solve the problems of high production cost and high price, and achieve the effects of low price, simple preparation method, and easy large-scale preparation

Inactive Publication Date: 2008-06-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the raw materials are metal organics, the price is expensive, resulting in high production costs

Method used

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  • Nano vanadium oxide and method for making same
  • Nano vanadium oxide and method for making same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: the preparation of nanorod VO-N

[0041] 20mmolV 2 o 5 Add 20mmol of aniline into 10ml of deionized water and stir vigorously for 1h to make it a viscous liquid, then add 30ml of deionized water and stir vigorously for 1h to fully hydrolyze it and adjust it into a rheological state in which solid particles and liquid substances are evenly distributed, and then It was moved into a stainless steel reactor with a polytetrafluoroethylene substrate, pretreated at 140°C for 1 day, and then heated to 180°C for 3 days of crystallization. The product was washed and filtered with water, and the filter cake was transferred to 50ml of ethanol and stirred at room temperature for 1d to completely remove organic matter, then filtered, and dried at 70°C to obtain nanorod VO-N. Its TEM, SEM and XRD spectra are respectively figure 1 , 2 and 3.

Embodiment 2

[0042] Embodiment 2: the preparation of nanorod VO-N-H

[0043] Under exactly the same conditions as in Example 1, before moving into the reactor, the pH value of the medium was adjusted to 1-2 with acetic acid. Obtain nanorod VO-N-H, its TEM, SEM and XRD spectra are respectively Figure 4 , 5 and 6.

Embodiment 3

[0044] Embodiment 3: the preparation of nanorod VO-2N-H

[0045] Under exactly the same conditions as in Example 2, the template agent aniline was replaced by p-phenylenediamine to obtain nanorod VO-2N-H, and its transmission electron microscope, scanning electron microscope and XRD spectra were 7, 8 and 9, respectively.

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Abstract

The invention relates to a nanometer vanadium oxide and the preparing method thereof, which belongs to the fields of nanometer material and nanometer technology.Under the effects of different templates, through hydrothermal synthesis or renewed arrangement process of fine articles , different vanadium sources generate nanometer vanadium oxides with the shapes of rod-like and irregular flakes or regular round flakes.The length of nanometer rod is 1 to 5Mum and the diameter is 20 to 150nm.The length of the vanadium oxide with the shape of round flake is 0.5-2 Mum and the thickness is 20 to 150nm.The preparing method is characterized by the low material cost, simple process, as well as controllable shape and appearance of the nanometer material, etc., and the same time has important exploitation value and application prospect.

Description

technical field [0001] The invention relates to a nano vanadium oxide, which belongs to the field of nano material and nano technology. [0002] The present invention also relates to a preparation method of the above-mentioned nano vanadium oxide. Background technique [0003] Nanoparticles usually refer to tiny solid particles with a size between 1nm and 100nm, which are in the transition region between atomic clusters and macroscopic objects. The ratio of the number of atoms on the surface to the total number of atoms in the bulk increases sharply with the decrease of particle size, showing obvious volume effect, quantum size effect and surface effect. The emergence of nanoparticles is a new technological revolution, which has aroused great interest, and various methods are used to prepare this kind of nanomaterials with specific functions directly arranged by atoms and molecules on the nanometer scale. Among numerous nanomaterials, nanometer metal oxides are a very impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G31/02
Inventor 徐杰高肖汉苗红高进宁建波张巧红
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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