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Method for preparing Co3O4 nanoribbon

A technology of nanobelt and water bath method, which is applied in the field of preparation of Co3O4 nanobelt, can solve the problems of high temperature and high pressure reaction, complex and expensive, etc., and achieve the effect of mild reaction conditions, simple process and cheap raw materials

Inactive Publication Date: 2015-05-13
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

These preparation methods either require complex and expensive equipment, or use organic solvents and surfactants, or high temperature and high pressure reactions

Method used

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  • Method for preparing Co3O4 nanoribbon
  • Method for preparing Co3O4 nanoribbon
  • Method for preparing Co3O4 nanoribbon

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Embodiment

[0018] A kind of Co 3 o 4 The preparation method of nanobelt adopts the water bath method to synthesize, and the steps are as follows:

[0019] 1) Dissolve 0.01 mol cobalt chloride hexahydrate in 60 mL of deionized water, stir magnetically at room temperature until completely dissolved, then add 0.1 mol urea, stir magnetically at room temperature to dissolve completely, and obtain a mixed solution;

[0020] 2) React the above mixed solution in a water bath at 90°C for 24 h to obtain a reaction solution;

[0021] 3) After the above reaction solution was left to stand for 20 minutes, centrifuge at 2000 r / min for 2 minutes, discard the supernatant, wash the obtained precipitate with water and absolute ethanol four times, and dry at 60°C 12 h, get Co(CO 3 ) 0.5 (OH)?0.11H 2 O precursor;

[0022] figure 1 For the preparation of Co(CO 3 ) 0.5 (OH)?0.11H 2 O precursor and Co 3 o 4 The XRD pattern (JCPDS card No.48-0083), wherein: figure 1 (a) is Co(CO 3 ) 0.5 (OH)?0.11...

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Abstract

The invention discloses a method for preparing a Co3O4 nanoribbon. The method comprises the following steps: by taking water as a reaction medium, taking cobalt chloride hexahydrate and urea as raw materials, reacting under water bath conditions, centrifuging and washing the obtained product, and drying, thereby obtaining a controllable ribbon-shaped Co(CO3)0.5(OH).0.11H2O precursor with regular morphology; putting the dried precursor into a muffle furnace, heating to a certain temperature at a certain heating speed, preserving the temperature, and totally converting the precursor into Co3O4, wherein the ribbon structure is not damaged, and the morphology is kept good. The method disclosed by the invention has the advantages that the size, structure and morphology of the Co3O4 nanoribbon prepared by the method are easily controlled, and the prepared Co3O4 nanoribbon has good gas-sensitive and photodegradable performances; and moreover, the preparation method is simple, convenient, easy to operate, low in cost and high in yield, and industrial production is easily realized.

Description

technical field [0001] The invention relates to the field of preparation of inorganic nanomaterials, in particular to a Co 3 o 4 Preparation methods of nanoribbons. Background technique [0002] Nanomaterials, especially one-dimensional nanomaterials, exhibit many excellent and novel properties compared to their bulk materials, and play an important role in the fields of electronics, optoelectronics, and storage devices, and their synthesis research has aroused increasing interest of scientists . Among them, one-dimensional transition metal oxide nanomaterials have attracted much attention because of their special optical, magnetic and electrical properties. [0003] As an important p-type semiconductor, Co 3 o 4 With a spinel structure, it is widely used in many fields such as lithium-ion batteries, supercapacitors, information storage, catalysis and sensors. In recent years, a variety of preparations for one-dimensional Co 3 o 4 methods for nanomaterials. For exa...

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Application Information

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IPC IPC(8): C01G51/04B82Y30/00
Inventor 张乐喜李玲别利剑乔鹏羽孙慧宁赵增旺
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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