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Preparation method of vanadium oxide nanobelt

A technology of vanadium oxide and nanobelt, which is applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of unclear reaction cycle and uncertain when the reaction will be completed, and achieve easy scale-up The effect of efficient production, easy control, and high yield

Inactive Publication Date: 2018-03-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems in the above method are: 1. The reaction cycle is not clear, and it is uncertain when the reaction will be completed; 2. It is not suitable for continuous generation of the assembly line, and the reaction process is a one-time production of a certain amount

Method used

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  • Preparation method of vanadium oxide nanobelt
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  • Preparation method of vanadium oxide nanobelt

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Vanadium foil pretreatment. There may be an oxide layer on the surface of the purchased vanadium foil. Use 1200-grit sandpaper to polish to remove the oxide layer on the surface, rinse it with distilled water, and dry it for later use.

[0036] 2. Prepare the electrolyte. For accurate weighing, the mixed salt solution is 60 times the concentration of the actual use, and it must be diluted before use. Weigh 1-2g NaCl (excellent pure), 0.01-0.1g KCl (analytical pure), 0.1-1g CaCl 2 2H 2 O (analytically pure), 0.1-1g MgCl 2 ·6H 2 O (analytical grade) was configured into 100ml aqueous solution (solution A), and 0.5-2mL solution A and 0.1-1mL nitric acid were taken, diluted with water, and configured into a 60mL dilute solution.

[0037] 3. Assemble the electrolytic cell. The vanadium foil is used as the anode of the electrolytic cell, and the cleaned and dried platinum sheet is used as the cathode of the electrolytic cell. The distance between the two electrodes is 1-...

Embodiment 2

[0043] 1. Vanadium foil pretreatment. There may be an oxide layer on the surface of the purchased vanadium foil. Use 1200-grit sandpaper to polish to remove the oxide layer on the surface, rinse it with distilled water, and dry it for later use.

[0044] 2. Prepare the electrolyte. For accurate weighing, the mixed salt solution is 60 times the concentration of the actual use, and it must be diluted before use. Weigh 1.5g NaCl (excellent pure), 0.06g KCl (analytical pure), 0.5g CaCl 2 2H 2 O (analytically pure), 0.5g MgCl 2 ·6H 2O (analytical pure) was configured into 100ml of aqueous solution (solution A), and 1mL of solution A and 0.5mL of nitric acid were taken, diluted with water, and configured into a 60mL dilute solution.

[0045] 3. Assemble the electrolytic cell. The vanadium foil is used as the anode of the electrolytic cell, and the cleaned and dried platinum sheet is used as the cathode of the electrolytic cell. The distance between the two electrodes is 2 cm. Add...

Embodiment 3

[0052] 1. Vanadium foil pretreatment. There may be an oxide layer on the surface of the purchased vanadium foil. Use 1200-grit sandpaper to polish to remove the oxide layer on the surface, rinse it with distilled water, and dry it for later use.

[0053] 2. Prepare the electrolyte. For accurate weighing, the mixed salt solution is 60 times the concentration of the actual use, and it must be diluted before use. Weigh 1g NaCl (excellent pure), 0.01g KCl (analytical pure), 0.1g CaCl 2 2H 2 O (analytically pure), 0.1g MgCl 2 ·6H 2 O (analytical pure) was configured into 100ml of aqueous solution (solution A), and 0.5mL of solution A and 0.1mL of nitric acid were taken, diluted with water, and configured into a 60mL dilute solution.

[0054] 3. Assemble the electrolytic cell, the vanadium foil is used as the anode of the electrolytic cell, and the cleaned and dried platinum sheet is used as the cathode of the electrolytic cell. The distance between the two electrodes is 1cm, and...

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Abstract

The invention relates to a preparation method of a vanadium oxide nanobelt. The preparation method includes following steps: (1), taking a vanadium foil and a platinum sheet, soaking part of the vanadium foil and the platinum sheet into electrolyte in an electrolytic tank, and connecting with a power source to start anode oxidative reaction until the part, soaked in the electrolyte, of the vanadium foil is completely dissolved, wherein the vanadium foil serves as an anode, and the platinum sheet serves as a cathode; (2), separating a reaction solution, and drying to obtain vanadium oxide agglomerate; (3), adding the vanadium oxide agglomerate into an alcohol solution, ultrasonically cleaning to obtain a suspension, standing for free settling, separating to obtain precipitate, and drying toobtain the vanadium oxide nanotbelt. Compared with the prior art, the preparation method has the advantages that the vanadium oxide nanobelt can be prepared at normal temperature and normal pressureon a large scale in a high-yield manner through simple reaction, and the preparation method has the advantages of simple process, convenience in operation, low energy consumption, easiness in control,and convenience for amplified large-scale production; the preparation method is supportive of continuous streamline production, and the vanadium oxide nanobelt can be obtained continuously by only continuously adding two reactants including water and the vanadium foil.

Description

technical field [0001] The invention relates to a preparation method of vanadium oxide, in particular to a preparation method of vanadium oxide nanobelt. Background technique [0002] Vanadium oxide nanoribbons (VXG) are transition metal oxides with a two-dimensional layered structure in a crystalline state, and the interlayer bonds are relatively V 2 o 5 The V-O bonds in crystals are much weaker. The intercalation reaction in the crystal is quite slow, while in the nanoribbon it can be completely intercalated within a few hours or minutes at room temperature. Vanadium oxide nanobelts can intercalate a variety of metal cations, and are an excellent intercalation compound, so they have become one of the most promising materials for lithium battery cathode materials. [0003] The Chinese patent application number CN201410485637.4 applied for a vanadium pentoxide nanobelt and its normal temperature synthesis method and application. The invention discloses a normal temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/00C25D11/26B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C25B1/00C25D11/26
Inventor 杨修春段永胜
Owner TONGJI UNIV