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Simple preparation method of hollow-spherical and flower-shaped indium oxide with secondary structure and application

A secondary structure, indium oxide technology, applied in chemical instruments and methods, analysis by making materials react chemically, inorganic chemistry, etc., can solve the problems of complex operation, high production cost, harsh experimental conditions, etc., and achieve a wide range of sources , low cost, simple and convenient operation

Inactive Publication Date: 2011-07-27
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve technical defects such as high production cost, harsh experimental conditions, and complicated operation in the above-mentioned indium oxide preparation process, to provide a simple preparation method for hollow spherical and flower-shaped indium oxide with secondary structure, and to synthesize the material Sensitive material used as gas sensor gas

Method used

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  • Simple preparation method of hollow-spherical and flower-shaped indium oxide with secondary structure and application
  • Simple preparation method of hollow-spherical and flower-shaped indium oxide with secondary structure and application
  • Simple preparation method of hollow-spherical and flower-shaped indium oxide with secondary structure and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a) First add 2 mmol of indium chloride and 4 g of SDS into a 50 mL beaker filled with 40 mL of deionized water, then mix and stir for about 20 minutes. Add 4 mL of DMF to the above solution, and continue stirring for about 10 minutes. The solution was transferred into a 60 mL polytetrafluoroethylene-lined autoclave, and after sealing, the autoclave was kept at 160 °C for 10 hours. After 10 hours, the autoclave was taken out, and after being cooled to room temperature, the autoclave was opened, and the product was transferred to a beaker;

[0026] b) Wash the above product repeatedly with deionized water and absolute ethanol. Dry the final white precipitate at 60°C. The white precipitate is the precursor. And perform XRD and SEM characterization on the prepared white precursor;

[0027] c) Transfer the dried precursor to a crucible, put the crucible into a muffle furnace at 400°C for 5 hours, take it out, and cool it down to room temperature. The finally obtained ye...

Embodiment 2

[0029] a) First add 2 mmol of indium chloride and 6 g of SDS into a 50 mL beaker filled with 40 mL of deionized water, then mix and stir for about 20 minutes. Add 4 mL of DMF to the above solution, and continue stirring for about 10 minutes. The solution was transferred into a 60 mL polytetrafluoroethylene-lined autoclave, and after sealing, the autoclave was kept at 160° C. for 10 hours. After 10 hours, the autoclave was taken out, and after being cooled to room temperature, the autoclave was opened, and the product was transferred to a beaker;

[0030] b) Wash the above product repeatedly with deionized water and absolute ethanol. Dry the final white precipitate at 60°C. The white precipitate is the precursor. And perform XRD and SEM characterization on the prepared white precursor;

[0031] c) Transfer the dried precursor to a crucible, put the crucible into a muffle furnace at 600°C for 5 hours, take it out, and cool it to room temperature. The finally obtained yellow...

Embodiment 3

[0033] a) First add 2 mmol of indium chloride and 1 g of SDS into a 50 mL beaker filled with 40 mL of deionized water, then mix and stir for about 20 minutes. Add 4 mL of DMF to the above solution, and continue stirring for about 10 minutes. The solution was transferred into a 60 mL polytetrafluoroethylene-lined autoclave, and after sealing, the autoclave was kept at 160° C. for 10 hours. After 10 hours, the autoclave was taken out, and after being cooled to room temperature, the autoclave was opened, and the product was transferred to a beaker;

[0034] b) Wash the above product repeatedly with deionized water and absolute ethanol. Dry the final white precipitate at 60°C. The white precipitate is the precursor. And perform XRD and SEM characterization on the prepared white precursor;

[0035] c) Transfer the dried precursor to a crucible, put the crucible into a muffle furnace at 400°C for 5 hours, take it out, and cool it down to room temperature.

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Abstract

The invention provides a preparation method of indium oxide with new appearance, belonging to the technical field of synthesis and nano material of the indium oxide. The preparation method comprises the following steps: taking inorganic salt solution of the indium as an indium source, adopting N, N-dimethyl formamide (DMF) as an alkali source and anion active agents such as sodium dodecyl sulfate(SDS) and the like as an additive, using hydrothermal synthesis to prepare the novel hollow-microspherical and flower-shaped indium oxide with the secondary structure under the condition without adding any hard template, and controlling the appearance of the secondary structure by chemical means. In the preparation method provided by the invention, the technical process is simple, the promotion is easy, the selected reagent is low in price and environment-friendly, and the need on low-cost, large-scale and green production is met.

Description

technical field [0001] The invention relates to a simple method for preparing hollow spheres and flower-like indium oxides with secondary structures and its application, which belongs to the field of controlled synthesis and application of micron / nano materials. Background technique [0002] It is well known that the properties of inorganic micro / nanomaterials are related to particle size and shape. Much work is currently focused on the controlled synthesis of micro / nanomaterials of different shapes, sizes, dimensions, and structures. In particular, the research on 3D micro / nanostructure materials with hierarchical or complex structures constructed of nanostructure units, such as nanoparticles, nanorods / wires / ribbons or nanosheets, has become one of the research hotspots of materials. This is because the secondary structure of the material usually produces more excellent overall synergistic properties, which not only have the characteristics of the structural unit, but also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G15/00B82Y40/00G01N21/76
Inventor 吕弋蔡苹杨宋红杰张立春
Owner SICHUAN UNIV
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