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Preparation method of CoV2O6 sheets

A lamellar, V2O5 technology, applied in chemical instruments and methods, inorganic chemistry, nanotechnology, etc., can solve the problems of difficult large-scale production, complex process, low efficiency, etc., achieve short reaction cycle, simple process, high efficiency effect

Inactive Publication Date: 2016-12-21
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its technology has the disadvantages of complex process and low efficiency, and it is difficult to carry out large-scale production

Method used

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  • Preparation method of CoV2O6 sheets
  • Preparation method of CoV2O6 sheets
  • Preparation method of CoV2O6 sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Weigh 0.364 g of vanadium pentoxide powder, disperse it in 30 mL of deionized water, add 5 mL of hydrogen peroxide, and ultrasonically disperse for 30 minutes; , hydrothermal reaction for 72 hours; the hydrothermal product was centrifuged, washed and dried to obtain one-dimensional V 2 o 5 nanoribbons;

[0018] (2) Weigh 0.16 g of cobalt nitrate hexahydrate and 0.1 g of prepared V 2 o 5 The sample was controlled at a molar ratio of 1:1, dispersed in 10 mL of deionized water; dried after immersion for 12 hours, to obtain a brown powder sample;

[0019] (3) Put the product obtained in (2) into a box-type resistance furnace, heat-treat at 500°C for 2 hours, and obtain the composite powder after cooling.

[0020] With the strip-shaped V prepared in Example 1 2 o 5 FESEM spectra of nanomaterials such as figure 1 As shown, it can be seen that the obtained product is a strip-like structure with uniform morphology; sheet-like CoV 2 o 6 The SEM pattern such as fig...

Embodiment 2

[0023] (1) Weigh 0.364 g of vanadium pentoxide powder, disperse it in 30 mL of deionized water, add 5 mL of hydrogen peroxide, and ultrasonically disperse for 30 minutes; , hydrothermal reaction for 72 hours; the hydrothermal product was centrifuged, washed and dried to obtain one-dimensional V 2 o 5 nanoribbons;

[0024] (2) Weigh 0.2 g of cobalt nitrate hexahydrate and 0.32 g of prepared V 2 o 5 The sample was controlled at a molar ratio of 1:1, dispersed in 15 mL of deionized water; dried after immersion for 12 hours, to obtain a brown powder sample;

[0025] (3) Put the product obtained in (2) into a box-type resistance furnace, heat-treat at 300 °C for 2 hours, and obtain the composite powder after cooling.

Embodiment 3

[0027] (1) Weigh 0.364 g of vanadium pentoxide powder, disperse it in 30 mL of deionized water, add 5 mL of hydrogen peroxide, and ultrasonically disperse for 30 minutes; , hydrothermal reaction for 72 hours; the hydrothermal product was centrifuged, washed and dried to obtain one-dimensional V 2 o 5 nanoribbons;

[0028] (2) Weigh 0.3 g of cobalt nitrate hexahydrate and 0.48 g of prepared V 2 o 5 The sample was controlled at a molar ratio of 1:1, dispersed in 20 mL of deionized water; dried after immersion for 12 hours, to obtain a brown powder sample;

[0029] (3) Put the product obtained in (2) into a box-type resistance furnace, heat-treat at 400 °C for 2 hours, and obtain the composite powder after cooling.

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Abstract

The invention mainly discloses a preparation method of CoV2O6 sheets, and belongs to the technical field of inorganic advanced nano material preparation. The preparation method comprises following steps: a certain amount of vanadium pentoxide powder and H2O2 are mixed and stirred, distilled water is added, an obtained mixture is delivered into an autoclave for hydrothermal reaction, and V2O5 strips are obtained via washing and drying; a certain amount of cobalt nitrate is dispersed in distilled water, the V2O5 strips are added with stirring, an obtained solution is stirred for a certain period of time, and is subjected to centrifugation, washing, and drying, and an obtained product is delivered into a muffle furnace for sintering for a certain period of time so as to obtain the CoV2O6 sheets. The preparation method is simple; yield is high; cost is relatively low; the obtained nano materials are thin sheets; the specific surface area is large; and product quality is excellent.

Description

technical field [0001] The invention belongs to the field of production of nanomaterials, in particular, the invention relates to a lamellar CoV 2 o 6 method of preparation. Background technique [0002] Cobalt vanadate (CoV 2 o 6 ) has a unique structure and properties. It has photocatalytic activity, sensitive characteristics, thermal stability, electrical conductivity, and good gas sensitivity. It has a wide range of applications in optical materials, adsorption materials, catalysts, and chemical sensing. [0003] Due to the advancement of science and technology and the continuous development of various characterization methods, coupled with the unique properties of sheet-like nanomaterials in various aspects, the preparation, research and application of sheet-like nanomaterials have attracted more and more attention and attention from all walks of life. support. The unique interface effect, small size effect, quantum size effect and macroscopic quantum tunneling eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/00B82Y40/00
CPCC01G51/00C01P2002/72C01P2004/03C01P2004/17
Inventor 刘璐宋鹏李嘉王琦杨中喜
Owner UNIV OF JINAN
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