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A kind of preparation method of molybdenum trioxide nanotube

A molybdenum trioxide and nanotube technology, applied in the field of inorganic nanomaterials, can solve the problems of complex preparation methods, restricting the application of molybdenum trioxide nanomaterials, difficult to effectively control the morphology of molybdenum trioxide nanotubes, etc. Conducive to large-scale industrial production, with strong diameter controllability

Active Publication Date: 2020-05-05
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned disclosed preparation methods are relatively complicated, and the morphology of the prepared molybdenum trioxide nanotubes is difficult to effectively control, thus restricting the application of molybdenum trioxide nanomaterials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method for molybdenum trioxide nanotubes, comprising the following processing steps:

[0019] 1) Spread 5g of molybdenum hexacarbonyl on the bottom of the ceramic crucible, and place a porous anodized aluminum template with a pore diameter of 40nm downwards on top of the molybdenum hexacarbonyl, seal the crucible and heat it in a muffle furnace to 100°C And keep it warm for 60 minutes, continue to heat up to 300°C and keep it warm for 40 minutes to get metal molybdenum deposition;

[0020] 2) Continue to heat up the muffle furnace in step 1) to 550°C and keep it warm for 60 minutes;

[0021] 3) When the temperature of the ceramic crucible in step 2) drops to room temperature, take out the sample, remove the porous alumina template with a phosphoric acid solution with a concentration of 0.3mol / L, and then process it through suction filtration and dry to obtain the molybdenum trioxide nanometer Tube powder material finished product.

Embodiment 2

[0023] A preparation method for molybdenum trioxide nanotubes, comprising the following processing steps:

[0024] 1) Spread 5g of molybdenum hexacarbonyl on the bottom of a ceramic crucible, then place a porous anodized aluminum template with a pore size of 200nm downwards on top of the molybdenum hexacarbonyl, seal the crucible and place it in a muffle furnace for heating to 50°C And keep it warm for 200min, continue to heat up to 300°C and keep it warm for 40min, to get metal molybdenum deposition;

[0025] 2) Continue to heat up the muffle furnace in step 1) to 550°C and keep it warm for 60 minutes;

[0026] 3) When the temperature of the ceramic crucible in step 2) drops to room temperature, take out the sample, remove the porous alumina template with a phosphoric acid solution with a concentration of 0.3mol / L, and then process it through suction filtration and dry to obtain the molybdenum trioxide nanometer Tube powder material finished product.

Embodiment 3

[0028] A preparation method for molybdenum trioxide nanotubes, comprising the following processing steps:

[0029] 1) Spread 5g of molybdenum hexacarbonyl on the bottom of a ceramic crucible, then place a porous anodized aluminum template with a pore size of 10nm downwards on top of the molybdenum hexacarbonyl, seal the crucible and heat it in a muffle furnace to 150°C And keep it warm for 30 minutes, continue to heat up to 300°C and keep it warm for 40 minutes to get metal molybdenum deposition;

[0030] 2) Continue to heat up the muffle furnace in step 1) to 550°C and keep it warm for 60 minutes;

[0031] 3) When the temperature of the ceramic crucible in step 2) drops to room temperature, the sample is taken out, and the porous alumina template is removed with a phosphoric acid solution with a concentration of 0.3mol / L, and then treated by suction filtration and dried to obtain the molybdenum trioxide nanometer Tube powder material finished product.

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Abstract

The invention discloses a method for preparing a molybdenum trioxide nanotube. The method comprises the following process steps: 1) using hexacarbonyl molybdenum as a raw material, and porous anodizedalumina as a template, placing the opening of the template downward above a raw material, sealing a crucible and then placing in a muffle furnace for heating, performing low temperature sublimation,depositing the hexacarbonyl molybdenum, and continuously increasing the temperature, so that the hexacarbonyl molybdenum deposited in the porous anodized alumina template is thermally decomposed to form a metal molybdenum deposit; 2) continuously increasing the temperature so that the metal molybdenum deposit in step 1) is oxidized; 3) removing the porous alumina template with a dilute acid solution, followed by suction filtration and drying, to obtain the finished product. The method disclosed by the invention has simple steps, no environmental pollution, and no need for complicated equipment, and the prepared molybdenum trioxide nanotube material has strong diameter controllability, good crystallinity, and uniform nanotube wall morphology, thereby greatly improving the comprehensive performance of the finished molybdenum trioxide nanotube material product. The method disclosed by the invention has wide applicability and is favorable for large-scale industrial production.

Description

technical field [0001] The invention relates to the field of inorganic nanometer materials, in particular to a method for preparing inorganic nanotubes. Background technique [0002] Molybdenum trioxide (MoO 3 ) is a wide bandgap n-type semiconductor material with a layered structure, which has special physical and chemical properties, so it has broad application prospects in catalysts, lithium-ion battery cathode materials, gas-sensitive materials and electrochemical chromogenic materials . Among them, nano-scale molybdenum trioxide has excellent reversible photochromism and high optical contrast, and its performance has potential application value in information storage, image display and light adjustment, and can be used as electrochromic, photochromic, smart The core material of camouflage and other devices has broad application value in the fields of display equipment and military equipment. [0003] In recent years, with the advancement of science and technology, ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G39/02B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G39/02C01P2004/13
Inventor 胡柱东林海敏
Owner FOSHAN UNIVERSITY
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