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Preparation method of nano structured cubic indium oxide gas sensitive material

A nanostructure and cube technology, applied in the field of preparation of cubic nanostructure indium oxide gas-sensing materials, can solve problems such as not very deep exploration

Inactive Publication Date: 2017-09-29
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the constraints of experimental equipment and production technology, people are currently working on In 2 o 3 The exploration of nanomaterials, especially the exploration of gas-sensing properties, is not very deep

Method used

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  • Preparation method of nano structured cubic indium oxide gas sensitive material
  • Preparation method of nano structured cubic indium oxide gas sensitive material
  • Preparation method of nano structured cubic indium oxide gas sensitive material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Weigh a certain amount of indium trichloride tetrahydrate and 1,4-butanediamine, and dissolve them in 40 mL of deionized water, in which the concentration of indium trichloride tetrahydrate is 0.025 mol / L, 1,4- The concentration of butanediamine is 0.025 mol / L, and the molar ratio of indium trichloride tetrahydrate and 1,4-butanediamine is controlled to be 1:1;

[0017] (2) Move the mixed solution obtained in step (1) to a hydrothermal reaction kettle lined with polytetrafluoroethylene, conduct a hydrothermal reaction at a temperature of 180 °C for 8 h, and then use the product after the hydrothermal reaction The centrifuge is used for solid-liquid separation, and the obtained solid product is washed several times with deionized water and ethanol;

[0018] (3) Place the solid product obtained in step (2) in a drying oven, dry it at 60 °C, put it in an alumina crucible and put it in a muffle furnace, and heat it at 500 °C for 3 h to obtain cubic indium oxide powder w...

Embodiment 2

[0020] (1) Weigh a certain amount of indium trichloride tetrahydrate and 1,4-butanediamine, and dissolve them in 40 mL of deionized water, in which the concentration of indium trichloride tetrahydrate is 0.025 mol / L, 1,4- The concentration of butanediamine is 0.025 mol / L, and the molar ratio of indium trichloride tetrahydrate and 1,4-butanediamine is controlled to be 1:1;

[0021] (2) Move the mixed solution obtained in step (1) to a hydrothermal reaction kettle lined with polytetrafluoroethylene, conduct a hydrothermal reaction at 180 °C for 12 h, and then use the hydrothermal reaction product The centrifuge is used for solid-liquid separation, and the obtained solid product is washed several times with deionized water and ethanol;

[0022] (3) Place the solid product obtained in step (2) in a drying oven, dry it at 60 °C, put it in an alumina crucible and put it in a muffle furnace, and heat it at 500 °C for 3 h to obtain cubic indium oxide powder with a porous structure bo...

Embodiment 3

[0024] (1) Weigh a certain amount of indium trichloride tetrahydrate and 1,4-butanediamine, and dissolve them in 40 mL of deionized water, in which the concentration of indium trichloride tetrahydrate is 0.025 mol / L, 1,4- The concentration of butanediamine is 0.025 mol / L, and the molar ratio of indium trichloride tetrahydrate and 1,4-butanediamine is controlled to be 1:1;

[0025] (2) Move the mixed solution obtained in step (1) to a hydrothermal reaction kettle lined with polytetrafluoroethylene, conduct a hydrothermal reaction at a temperature of 180 °C for 20 h, and then use the product after the hydrothermal reaction The centrifuge is used for solid-liquid separation, and the obtained solid product is washed several times with deionized water and ethanol;

[0026] (3) Place the solid product obtained in step (2) in a drying oven, dry it at 60 °C, put it in an alumina crucible and put it in a muffle furnace, and heat it at 500 °C for 3 h to obtain cubic indium oxide powder ...

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Abstract

The present invention provides a preparation method of a nano structured cubic indium oxide gas sensitive material. The preparation method includes the following steps: the nano structured cubic indium oxide gas sensitive material is prepared from indium (III) chloride tetrahydrate and 1,4-Diaminobutane as raw materials through hydrothermal reaction and calcination treatment. The method has the advantages of simple process, no requirement of the use of any surfactant, and low synthesis cost, and the obtained indium oxide can be used as a gas sensitive material, the nano structured cubic indium oxide gas sensitive material has good trimethylamine gas sensing properties, so that the obtained the nano structured cubic indium oxide gas sensitive material can be widely used in trimethylamine gas detection.

Description

technical field [0001] The invention relates to a method for preparing a cubic nanostructure indium oxide gas-sensitive material, and belongs to the technical field of advanced nano functional material preparation technology. Background technique [0002] In recent years, food safety has attracted much attention. Seafood contains a large amount of trimethylamine oxide, which is easily decomposed into formaldehyde and dimethylamine under the action of biological enzymes, and trimethylamine (Trimethylamine, TMA ), which are precursors of carcinogen nitrosamines. Therefore, as one of the chemical indicators of fish freshness, trimethylamine is related to the safety and health of human beings, and the research on its gas sensitivity has attracted more and more attention. At present, the trimethylamine gas sensor is based on TiO 2 , ZnO is the main gas-sensing material. Japanese scientist Egashira et al. used TiO doped with noble metal ruthenium and indium 2 The first TMA ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G15/00G01N27/12B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G15/00C01P2002/72C01P2004/03C01P2004/04C01P2004/38G01N27/127
Inventor 张苏宋鹏李嘉王琦杨中喜
Owner UNIV OF JINAN
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