Hollow silkworm cocoon-shaped porous nickel oxide nano material and preparation method thereof

A nano-material, nickel oxide technology, applied in nickel oxide/nickel hydroxide, nanotechnology, chemical industry, etc., can solve the problem of no hollow cocoon-like nickel oxide nanostructure, etc., and achieve easy-to-obtain raw materials and good repeatability , low-cost effect

Inactive Publication Date: 2014-12-03
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as far as the literature survey is concerned, there are no reports of hollow cocoon-like nickel oxide nanostructures.

Method used

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  • Hollow silkworm cocoon-shaped porous nickel oxide nano material and preparation method thereof
  • Hollow silkworm cocoon-shaped porous nickel oxide nano material and preparation method thereof
  • Hollow silkworm cocoon-shaped porous nickel oxide nano material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The hollow silkworm cocoon-like porous nickel oxide nanomaterial of the present invention is prepared by a microwave synthesis-thermal decomposition two-step method, and its specific process flow is as follows:

[0027] (1) Weigh 1mmol nickel chloride hexahydrate (NiCl 2 ·6H 2 O) In a 100 ml beaker, add 50 ml of deionized water, after stirring and dissolving, add 0.15 mL of hydrazine hydrate (N 2 h 4 ·H 2 O, 85%);

[0028] (2) Weigh 2mmol oxalamine (NH 4 ) 2 C 2 o 4 added to the above solution;

[0029] (3) Continue to stir the reaction mixture for 10 minutes, cover the mouth of the cup with a polyethylene film, place it in a microwave oven, and heat it for 10 minutes on a low heat;

[0030] (4) Naturally cool to room temperature, let stand overnight, filter the precipitate, wash with deionized water and absolute ethanol for 3 to 5 times respectively, place the precipitate in a vacuum drying oven and heat for 6 hours at 60°C;

[0031] (5) Put the dried blue pr...

Embodiment 2

[0036] The hollow silkworm cocoon-like porous nickel oxide nanomaterial of the present invention is prepared by a microwave synthesis-thermal decomposition two-step method, and its specific process flow is as follows:

[0037] (1) Weigh 1mmol nickel chloride hexahydrate (NiCl 2 ·6H 2 O) In a 100 ml beaker, add 50 ml of deionized water, after stirring and dissolving, add 0.10 ml of hydrazine hydrate (N 2 h 4 ·H 2 O, 85%);

[0038] (2) Weigh 2mmol oxalamine (NH 4 ) 2 C 2 o 4 added to the above solution;

[0039](3) Continue to stir the reaction mixture for 15 minutes, cover the mouth of the cup with a polyethylene film, place it in a microwave oven, and heat it for 8 minutes on a low heat;

[0040] (4) Naturally cool to room temperature, let stand overnight, filter the precipitate, wash with deionized water and absolute ethanol for 3 to 5 times, place the precipitate in a vacuum drying oven and heat for 8 hours at a temperature of 50°C;

[0041] (5) Put the dried blue ...

Embodiment 3

[0044] The hollow silkworm cocoon-like porous nickel oxide nanomaterial of the present invention is prepared by a microwave synthesis-thermal decomposition two-step method, and its specific process flow is as follows:

[0045] (1) Weigh 1mmol nickel chloride hexahydrate (NiCl 2 ·6H 2 O) into a 100 ml beaker, add 50 ml of deionized water, after stirring and dissolving, add 0.20 ml of hydrazine hydrate (N 2 h 4 ·H 2 O, 85%);

[0046] (2) Weigh 2mmol oxalamine (NH 4 ) 2 C 2 o 4 added to the above solution;

[0047] (3) Continue to stir the reaction mixture for 10 minutes, cover the mouth of the cup with a polyethylene film, place it in a microwave oven, and heat it for 8 minutes on a low heat;

[0048] (4) Naturally cool to room temperature, let stand overnight, filter the precipitate, wash with deionized water and absolute ethanol for 3 to 5 times respectively, place the precipitate in a vacuum drying oven and heat for 10 hours at a temperature of 50°C;

[0049] (5) Pu...

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Abstract

The invention discloses a hollow silkworm cocoon-shaped porous nickel oxide nano material and a preparation method thereof. The method comprises the following steps of: weighing a proper amount of NiCl2.6H2O and adding the weighed NiCl2.6H2O into 50mL deionized water, and adding a proper volume of N2H4.H2O; in magnetic stirring, adding a proper amount of (NH4)2C2O4, stirring for 10-20 minutes, placing the product in a microwave oven, and heating at a low fire level for 8-12 minutes; cooling down the product to room temperature, and standing overnight to obtain a blue precipitate; and placing the dried blue precipitate into a resistance furnace, setting the temperature to 400-600 DEG C, and performing thermal treatment for 0.5-2 hours to obtain the hollow silkworm cocoon-shaped porous nickel oxide nano material. The long diameter of the nickel oxide nano silkworm cocoon is 280-650nm, the short diameter is 120-350nm, and the wall thickness is 30-80nm; and the surface is rich in pore structures, and the pore structure is formed by nano particles with particle size of 10-20nm. The method disclosed by the invention has simple technology and good repeatability, and is convenient to operate and is green, environment-friendly and energy-saving.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a hollow cocoon-like porous nickel oxide nanomaterial and a preparation method thereof. Background technique [0002] Nano-nickel oxide (NiO) is an important p-type semiconductor material with unique electrical, magnetic and catalytic properties, and is widely used in catalysts, dye batteries, gas sensors, magnetic materials, electroplated films, photoelectric conversion materials and other fields , is a promising functional inorganic material that has attracted extensive attention from materials scientists. The synthesis of nickel oxide nanomaterials and the relationship between their morphology and properties are two main aspects of nickel oxide nanomaterials research. Preparation of nickel oxide nanomaterials with good performance and clarification of the relationship between their morphology, structure and properties It has extremely important theoretical an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G53/04B82Y40/00
CPCY02P20/10
Inventor 胡寒梅邓崇海卢君然
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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