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Preparation method ofzinc cobaltatenanometer material doped with zinc oxide

A technology of nanomaterials and zinc oxide, applied in chemical instruments and methods, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of high reaction temperature, high equipment cost, high production cost, etc., and achieve simplified operation The steps and conditions are easy to control and the effect of low cost

Inactive Publication Date: 2013-12-04
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods provide some ways to synthesize cobaltate nanomaterials, but there are still deficiencies: 1) The cost of raw materials is high
2) Some have high requirements for operation
4) High equipment cost, high reaction temperature and complex design route make the production cost high
5) Large environmental pollution
Since the reaction uses more reactants as raw materials, many by-products are produced while the product is produced, causing pollution to the environment
There is no report on the application of the hydrothermal synthesis system preparation method to the preparation of zinc cobaltate nanomaterials doped with zinc oxide

Method used

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  • Preparation method ofzinc cobaltatenanometer material doped with zinc oxide
  • Preparation method ofzinc cobaltatenanometer material doped with zinc oxide
  • Preparation method ofzinc cobaltatenanometer material doped with zinc oxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 2.0×10 -3 mol of zinc oxide and dicobalt trioxide were dissolved in 75ml of deionized water, and the reaction kettle was sealed and mixed evenly; the reaction kettle was placed in a constant temperature box and heated at a constant temperature of 120°C for 12 hours; the reaction kettle was taken out and cooled to room temperature naturally , take out the precipitate obtained in the reaction, wash with deionized water and absolute ethanol alternately for 3 times, and then dry at low temperature to obtain zinc cobaltate nanomaterials.

[0023] figure 1 It is the XRD spectrogram of the zinc cobaltate nanomaterial doped with zinc oxide prepared under different reaction temperatures and reaction times in Examples 1, 2, and 3.

[0024] Such as figure 1 The XRD spectrum of the zinc cobaltate nanomaterial doped with zinc oxide obtained under different reaction temperatures and reaction times shown, wherein a is the doped zinc oxide obtained when heated at a constant tempe...

Embodiment 2

[0029] Add 2.0×10 -3 mol of zinc oxide and cobalt trioxide were dissolved in 75ml of deionized water, and the reaction kettle was sealed and mixed evenly; the reaction kettle was placed in a constant temperature box and heated at a constant temperature of 180°C for 12 hours; the reaction kettle was taken out and cooled to room temperature naturally , take out the precipitate obtained in the reaction, wash with deionized water and absolute ethanol alternately for 3 times, and then dry at low temperature to obtain zinc cobaltate nanomaterials.

[0030] figure 1 It is the XRD spectrogram of the zinc cobaltate nanomaterial doped with zinc oxide prepared under different reaction temperatures and reaction times in Examples 1, 2, and 3.

[0031] Such as figure 1 The XRD spectrum of the zinc cobaltate nanomaterial doped with zinc oxide obtained under the different reaction temperatures and reaction times shown, wherein c is the X-ray diffraction spectrum of the zinc cobaltate nanoma...

Embodiment 3

[0036] Add 2.0×10 -3 mol of zinc oxide and cobalt trioxide were dissolved in 75ml of deionized water, and the reaction kettle was sealed and mixed evenly; the reaction kettle was placed in a constant temperature box and heated at a constant temperature of 180°C for 48 hours; the reaction kettle was taken out and cooled to room temperature naturally , take out the precipitate obtained in the reaction, wash with deionized water and absolute ethanol alternately for 3 times, and then dry at low temperature to obtain zinc cobaltate nanomaterials.

[0037] figure 1 It is the XRD spectrogram of the zinc cobaltate nanomaterial doped with zinc oxide prepared under different reaction temperatures and reaction times in Examples 1, 2, and 3.

[0038] Such as figure 1 The XRD spectrogram of the zinc cobaltate nanomaterial doped with zinc oxide obtained under different reaction temperatures and reaction times shown, wherein b is the X-ray diffraction spectrum of the zinc cobaltate nanomat...

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Abstract

A preparation method of a zinc cobaltate nanometer material doped with zinc oxide comprises the following steps: dispersing the zinc oxide and cobaltic oxide in deionized water according to a certain molar ratio, so as to obtain a first solution; heating the first solution for a certain time at a first constant temperature, so as to obtain a second solution; cooling the second solution until the temperature of the second solution to be the room temperature, and performing rinsing and low-temperature drying, so as to obtain the zinc cobaltate nanometer material; wherein the certain molar ratio is (1:2)-(2:1), the first constant temperature is 120-180 DEG C, and the certain time is 12-48 hours. The preparation method adopts a hydro-thermal synthesis system, and directly takes the oxide (i.e. the zinc oxide) as the reactant to prepare the zinc cobaltate nanometer material; the reaction time, reaction temperature and reactant concentration ratio are regulated; the variety and using amount of additive are changed. Therefore, the morphology and grain sizes of the particles are controlled. The preparation method has the advantages of low raw material and equipment costs, simple process, easiness in operation, relatively-low reaction temperature and low environment pollution.

Description

technical field [0001] The invention specifically relates to a method for preparing zinc cobaltate nanometer materials doped with zinc oxide by a one-step method. Background technique [0002] Cobaltate and its composite nanomaterials are an important class of multifunctional materials. Spinel cobaltate nanomaterials have good catalytic properties, thermoelectric properties, and magnetic properties. Cobaltate nanoparticles have high catalytic activity and selectivity for catalytic oxidation, reduction and cracking reactions. Magnetic cobaltate nanomaterials can be used as pharmaceutical carriers. Lithium cobaltate is currently the most mainstream positive electrode for lithium-ion batteries. Materials; In addition, cobaltate nanomaterials have strong absorption characteristics for ultraviolet and infrared rays, and still have high strength, high toughness, and excellent stability at high temperatures. Zinc oxide nanomaterials are widely used in rubber, ceramics, daily chemi...

Claims

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Application Information

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IPC IPC(8): C01G51/00B82Y30/00
Inventor 马杰季婷婷张淑平
Owner UNIV OF SHANGHAI FOR SCI & TECH
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