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(NH4)2V4O9 film and preparation method thereof

A 2V4O9 thin film technology, which is applied in the field of vanadate nanomaterial 2V4O9 thin film and its preparation, can solve the problems of not being able to directly form a film, and achieve the effect of low cost, excellent performance and unique shape

Active Publication Date: 2015-01-28
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, scientists have prepared vanadates with different shapes and compositions, such as NH 4 V 4 o 10 Nanoflowers, AgVO 3 Nanobelt, Mn 2 V 2 o 7 Nano Gang, (NH 4 ) 2 V 3 o 8 Nanosheets, etc., but (NH 4 ) 2 V 4 o 9 The preparation of nanosheet structure has not been reported yet
Moreover, most of the vanadate nanomaterials produced today are monodisperse nanopowders, which cannot be directly formed into films. It is still a challenge to directly prepare thin films with controllable morphology and film thickness on different substrates by one-step hydrothermal method. great challenge

Method used

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  • (NH4)2V4O9 film and preparation method thereof
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  • (NH4)2V4O9 film and preparation method thereof

Examples

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Effect test

Embodiment 1

[0063] Add 0.7mmol of tartaric acid and 60mL of deionized water into the reaction vessel, place it in an ultrasonic cleaner for 30min, then add 5.6mmol of vanadium pentoxide to the reaction vessel and stir for 20min, then add 3mL of directing agent 25% ammonia water dropwise And stir the reaction for 50min to obtain the precursor solution. Take 50mL of the precursor solution and transfer it to a reaction kettle with a polytetrafluoroethylene liner with a volume of 100mL. At the same time, put a piece of quartz substrate rinsed with deionized water into the reaction kettle In the tank, seal the reaction kettle and let it stand for 5 hours, then put the reaction kettle into an oven and heat it to 180°C for 24 hours, and then cool it naturally. After opening the kettle, the substrate was taken out and rinsed once with deionized water, followed by ethanol once, and repeated three times, and dried at 60°C for 8 hours to obtain (NH 4 ) 2 V 4 o 9 film.

[0064] Such as figure 1 ...

Embodiment 2

[0067] Add 0.7mmol of tartaric acid and 70mL of deionized water into the reaction vessel, place it in an ultrasonic cleaner for 30min, then add 5.9mmol of vanadium pentoxide to the reaction vessel and stir for 30min, then add 6mL of directing agent ammonia water dropwise and stir React for 30 minutes to obtain the precursor solution. Take 60 mL of the precursor solution and transfer it to a 100 mL polytetrafluoroethylene liner reactor. At the same time, put a piece of quartz substrate rinsed with deionized water into the reactor liner. After the reactor was sealed, let it stand for 10 hours, then put the reactor into an oven and heat it to 180°C for 24 hours, then cool it down naturally. After opening the kettle, the substrate was taken out and rinsed once with deionized water, followed by ethanol once, and repeated three times in this way, and dried at 60°C for 10 h to obtain the deposited on the quartz substrate (NH 4 ) 2 V 4 o 9 film.

[0068] Such as Figure 4 and F...

Embodiment 3

[0070] Add 0.73mmol of tartaric acid and 40mL of deionized water into the reaction vessel, place it in an ultrasonic cleaner for 20min, then add 6.2mmol of vanadium pentoxide to the reaction vessel and stir for 25min, then add 7mL of directing agent ammonia water dropwise and stir React for 40 minutes to obtain the precursor solution. Take 90 mL of the precursor solution and transfer it to a 100 mL polytetrafluoroethylene liner reactor. At the same time, put a quartz substrate rinsed with deionized water into the reactor liner. After the reactor was sealed, let it stand for 10 hours, then put the reactor into an oven and heat it to 200°C for 24 hours, then cool it down naturally. After opening the kettle, take out the substrate and rinse it once with deionized water, then rinse it once with ethanol, repeat this process three times, and dry it at 60°C for 10 hours to obtain (NH 4 ) 2 V 4 o 9 film.

[0071] Such as Figure 6 and Figure 7 Described, the (NH that the presen...

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Abstract

The invention discloses an (NH4)2V4O9 film and a preparation method thereof. According to the method, a one-step hydrothermal method is adopted, an aqueous solution serves as a reaction system in a specific airtight reactor, and the reaction system is heated to generate a high pressure, so that (NH4)2V4O9 films with controllable morphology and film thickness can be directly prepared on different substrates. The blank in preparation of the (NH4)2V4O9 film is filled, and the preparation method disclosed by the invention is easy to operate, high in controllability and high in repeatability. The (NH4)2V4O9 film prepared by the invention has huge application potentials in the electrochemical and optical fields.

Description

technical field [0001] The present invention relates to a kind of nano material, be specifically related to a kind of vanadate nano material (NH 4 ) 2 V 4 o 9 Thin films and methods for their preparation. Background technique [0002] my country is rich in vanadium resources and is the fifth largest vanadium resource country in the world. At present, vanadium and its compound materials are mainly used in steel and catalysts. The application of vanadium and its compounds is deeply developed, which is of great significance to the optimal utilization of vanadium resources in my country and the construction of national economy. Positive meaning. [0003] Among the transition metal elements, the price of vanadium is lower than that of cobalt and nickel, and it is a typical multivalent transition metal element, which determines that the chemical properties of vanadium are very active and can form a variety of oxides and oxo acid salts. As a well-known transition metal salt, va...

Claims

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Application Information

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IPC IPC(8): C01G31/00C03C17/22C23C18/16
CPCC03C17/006C03C17/25C03C2217/42C23C18/1676
Inventor 杨雪梅邓建国刘忠平纪兰香白小峰马春彦
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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