Method for preparing vanadium pentoxide-based nanosheets

A vanadium pentoxide-based, nanosheet technology, applied in vanadium oxide, tin oxide and other directions, can solve the problems that have not been found, and achieve the effects of good morphology stability, high specific surface area and low cost

Active Publication Date: 2019-01-15
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to its excellent physical and chemical properties, vanadium pentoxide with a layered structure is widely used in the fields of electrochemistry, optics, sensitivity and catalysis. The morphology of vanadium pentoxide with a layered structure that has been widely reported is mainly With balls, wires, ribbons, etc., but so far no report on the 1-micron-scale curds composed of vanadium pentoxide-based nanosheets has been found, so the present invention is expected to make this material more effective in its field of use. excellent role

Method used

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  • Method for preparing vanadium pentoxide-based nanosheets
  • Method for preparing vanadium pentoxide-based nanosheets
  • Method for preparing vanadium pentoxide-based nanosheets

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Dissolve 173.5mg vanadium triacetylacetonate and 14.4 tin tetrachloride pentahydrate in 40mL N,N-dimethylformamide, and magnetically stir for 1 to 2 hours until a uniform and transparent solution is formed, then transfer the solution to 50mL polytetrafluoroethylene In a stainless steel autoclave lined with vinyl fluoride, the autoclave was placed in an oven for reaction. After the reaction, the solution was washed with absolute ethanol several times to obtain a black solid, and then the solid was dried at 80°C for 6 hours, put the ground powder in a 400°C muffle furnace for calcination for 2 hours, and finally get V 2 o 5 -SnO 2 Nanosheets.

Embodiment 2

[0024] Dissolve 174.5 mg of vanadium triacetylacetonate and 14.8 mg of tin tetrachloride pentahydrate in 40 mL of N,N-dimethylformamide, and stir magnetically for 1 to 2 hours until a uniform and transparent solution is formed, then transfer the solution to 50 mL of poly In a stainless steel autoclave lined with tetrafluoroethylene, and place the autoclave in an oven for reaction, after the reaction, wash the solution with absolute ethanol several times to obtain a black solid, and then dry the solid at 80 °C After 6 hours, the ground powder was calcined in a muffle furnace at 400°C for 2 hours to obtain V 2 o 5 -SnO 2 Nanosheets.

Embodiment 3

[0026] Dissolve 174.5 mg of vanadium triacetylacetonate and 14.8 mg of tin tetrachloride pentahydrate in 40 mL of N,N-dimethylformamide, and stir magnetically for 1 to 2 hours until a uniform and transparent solution is formed, then transfer the solution to 50 mL of poly In a stainless steel autoclave lined with tetrafluoroethylene, and place the autoclave in an oven for reaction, after the reaction, wash the solution with absolute ethanol several times to obtain a black solid, and then dry the solid at 80 °C After 6 hours, the ground powder was calcined in a muffle furnace at 500°C for 2 hours to obtain V 2 o 5 -SnO 2 Nanosheets.

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Abstract

The invention discloses a method for preparing vanadium pentoxide-based nanosheets, and belongs to the field of functional nanomaterials. The method comprises the following preparation steps: firstly,dissolving vanadium triacetylacetonate and tin tetrachloride pentahydrate in N,N-dimethylformamide, and performing magnetic stirring for 1 to 2 hours until a uniform and transparent solution is formed; secondly, transferring the solution into a stainless steel autoclave lined with polytetrafluoroethylene, reacting in a baking oven, washing the solution with anhydrous ethanol after the reaction, and drying; finally, putting ground powder into a muffle furnace for calcining treatment to obtain V2O5-SnO2 nanosheets with high crystallinity. The method has the advantages of short production cycle,low cost, easiness in operation and mild reaction conditions; the material has higher performance, and has a broader application prospect in the fields such as energy storage and catalysis.

Description

technical field [0001] The invention relates to a method for preparing vanadium pentoxide-based nanosheets, belonging to the field of functional nanometer materials. Background technique [0002] Vanadium pentoxide is an important functional material. Because of its unique physical and chemical properties, it is not only widely used in metallurgy and chemical industry, but also in energy storage and catalysis. With the development of science and technology, people have increasingly realized that the performance of nanomaterials is far superior to that of macroscopic materials. However, the performance of nanomaterials is closely related to their microstructure. Therefore, the synthesis of new nanomaterials has attracted great attention from scientific researchers. [0003] Due to its excellent physical and chemical properties, vanadium pentoxide with a layered structure is widely used in the fields of electrochemistry, optics, sensitivity and catalysis. The morphology of van...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G31/02C01G19/02
CPCC01G19/02C01G31/02C01P2002/72C01P2004/03C01P2004/04C01P2004/20
Inventor 包燕平邢立东王伟王敏储建华
Owner UNIV OF SCI & TECH BEIJING
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