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a ti 4 o 7 Nanomaterials and their preparation methods and uses

A nano-material, nano-titanium dioxide technology, applied in the field of Ti4O7 nano-materials and its preparation, can solve problems such as high operating costs, difficult to control product quality, complicated process, etc., achieve sufficient contact area, high degree of reduction, and improve product purity Effect

Active Publication Date: 2021-03-02
LANGFANG GREEN IND TECH CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, although the preparation methods provided by the above-mentioned documents can all obtain Ti 4 o 7 Powder materials, but there are still problems such as complex process, high operation cost and difficult control of product quality

Method used

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  • a ti <sub>4</sub> o <sub>7</sub> Nanomaterials and their preparation methods and uses
  • a ti <sub>4</sub> o <sub>7</sub> Nanomaterials and their preparation methods and uses
  • a ti <sub>4</sub> o <sub>7</sub> Nanomaterials and their preparation methods and uses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Mix 70g of nano-titanium dioxide powder, 25g of activated carbon powder and 1g of glucose, place them in a ball mill jar, and perform ball milling for 10 hours with a ball-to-material ratio of 10:1 to obtain a mixed powder;

[0044] (2) Put the mixed powder in an atmosphere furnace, and heat treat the mixed powder under a nitrogen atmosphere. The heat treatment temperature is 1200°C, the heating rate is 8°C / min, and the holding time is 1h. After the reaction time expires, follow the furnace Cool down to get Ti 4 o 7 nanomaterials.

[0045] The Ti that the embodiment of the present invention 1 obtains 4 o 7 The X-ray diffraction pattern of the material is as figure 1 shown by figure 1 It can be seen that only Ti appears in the X-ray diffraction spectrum of the nanomaterial obtained by the preparation method of Example 1. 4 o 7 Diffraction peaks of the crystal structure, indicating that the main component of the nanomaterials is Ti 4 o 7 .

Embodiment 2

[0047] (1) Mix 60g of nano-titanium dioxide powder, 20g of carbon black powder and 0.3g of epoxy resin, place in a ball mill jar, and carry out ball milling for 40h with a ball-to-material ratio of 5:1 to obtain a mixed powder;

[0048] (2) Put the mixed powder in an atmosphere furnace, and heat treat the mixed powder under an argon atmosphere. The heat treatment temperature is 950°C, the heating rate is 15°C / min, and the holding time is 4h. Cool down the furnace to get Ti 4 o 7 nanomaterials.

Embodiment 3

[0050] (1) Mix 79.5g of nano-titanium dioxide powder, 20g of graphite powder and 0.5g of citric acid, place in a ball mill jar, and carry out ball milling for 20h with a ball-to-material ratio of 10:1 to obtain a mixed powder;

[0051] (2) Put the mixed powder in an atmosphere furnace, and heat-treat the mixed powder under a helium atmosphere. The heat treatment temperature is 1100°C, the heating rate is 10°C / min, and the holding time is 2h. Cool down the furnace to get Ti 4 o 7 Material.

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Abstract

The present invention relates to a kind of Ti 4 o 7 Nanomaterials and methods of preparation and uses thereof. The Ti 4 o 7 The preparation method of nanomaterials includes: using nano-titanium dioxide as the titanium source, inorganic carbon source and organic carbon source as the reducing agent, and obtaining Ti after grinding and heat treatment. 4 o 7 nanomaterials. In the preparation process, the controllable preparation of the particle size and purity of the nano-particles of the product is realized by utilizing the synergistic effect between the inorganic carbon source and the organic carbon source. The technological process of this preparation method is simple, and cost is lower, and the obtained Ti 4 o 7 Nanomaterials have high purity and electrical conductivity, small particle size, and can be used as catalytic materials and electrode materials.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a Ti 4 o 7 Nanomaterials and methods of preparation and uses thereof. Background technique [0002] Ti 4 o 7 The powder material is the world's first black titanium metal oxide. Its crystal structure can be regarded as the matrix of rutile titanium dioxide. Every three layers of TiO 2 After that is an oxygen deficient layer (TiO layer). Ti 4 o 7 It is a pure blackness inorganic functional material, which has strong hiding power, dispersing power, good heat resistance, acid resistance, alkali resistance, solvent resistance, environmental protection and non-toxic, meets food-grade safety standards, and will not be harmful to the skin Produce damage, can be used as a pigment, in line with the development needs of low-carbon economy. At the same time, Ti 4 o 7 It has high electrical conductivity, good electrochemical stability and corrosion resistance, and has the abi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/04B01J21/06
CPCB01J21/063C01G23/043C01P2002/72C01P2004/62C01P2006/40C01P2006/80
Inventor 谭强强夏青
Owner LANGFANG GREEN IND TECH CENT