Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Acetylacetone gas sensitive material, manufacturing method and application thereof

A gas-sensitive material, acetylacetone technology, which is applied in the direction of analyzing materials, analyzing gas mixtures, and the structural details of gas analyzers, can solve problems such as poor detection sensitivity and selectivity, achieve a wide detection range, promote transmission and diffusion, reduce The effect of the barrier

Inactive Publication Date: 2019-08-06
SHANDONG UNIV OF SCI & TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas-sensing performance of sensitive materials is a key factor in determining the detection capability of gas sensors, but the inventors found that the current metal oxide sensors have poor detection sensitivity and selectivity for acetylacetone gas

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Acetylacetone gas sensitive material, manufacturing method and application thereof
  • Acetylacetone gas sensitive material, manufacturing method and application thereof
  • Acetylacetone gas sensitive material, manufacturing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The second aspect of the present invention provides a kind of preparation method of acetylacetone gas sensitive material, comprises the steps:

[0035] 1) Weigh the zinc source, hexamethylenetetramine and graphene oxide, add them into deionized water, ultrasonicate, stir until dissolved, and form a solution;

[0036] 2) Transfer the solution prepared in step 1) to a stainless steel autoclave for hydrothermal reaction, and collect the precipitate after the reaction;

[0037] 3) drying the above precipitate to obtain a dry gray powder;

[0038] 4) Put the above powder into a calciner for heat treatment to obtain a finished product.

[0039] Hexamethylenetetramine decomposes under hydrothermal conditions to produce OH - , Zn source dissociates Zn in water 2+ ,OH - with Zn 2+ The reaction produces Zn(OH) 2 , Zn(OH) 2 Thermally decomposed into ZnO. Therefore, hexamethylenetetramine provides OH - .

[0040]In some embodiments, the zinc source is zinc nitrate, zinc a...

Embodiment 1

[0052] 1) Weigh zinc nitrate hexahydrate, hexamethylenetetramine and graphene oxide according to the mass ratio of 185:86:2, add them to deionized water, the mass ratio of deionized water to graphene oxide is 2500:1, ultrasonic, Stir until all dissolve and disperse to form a solution.

[0053] 2) Transfer the solution prepared in step 1) of the preparation to a stainless steel high-pressure reactor for hydrothermal reaction. The hydrothermal temperature is 150°C, and the reaction time is 8 hours. After the reaction, use a centrifuge to collect the precipitate at 8000r / min;

[0054] 3) Drying the collected precipitate at a drying temperature of 60° C. and a drying time of 48 hours to completely evaporate the water to obtain a zinc oxide precursor.

[0055] 4) Put the above powder into a calcination furnace for heat treatment. The box-type silicon carbide rod muffle furnace heats up to 450°C at a rate of 2°C / min, and then keeps it for 2 hours. Finally, take out the ultra-thin po...

Embodiment 2

[0059] 1) Weigh zinc nitrate hexahydrate, hexamethylenetetramine and graphene oxide according to the mass ratio of 185:120:1, add them to deionized water, the mass ratio of deionized water to graphene oxide is 5500:1, ultrasonic, Stir until all dissolve and disperse to form a solution.

[0060] 2) Transfer the solution prepared in the preparation step 1) to a stainless steel autoclave for hydrothermal reaction. The hydrothermal temperature is 140°C, and the reaction time is 7h. After the reaction, use a centrifuge to collect the precipitate at 8000r / min;

[0061] 3) Dry the collected precipitate at a drying temperature of 55° C. and a drying time of 55 hours to completely evaporate the water to obtain a zinc oxide precursor.

[0062] 4) Put the above powder into a calcination furnace for heat treatment. The box-type silicon carbide rod-type muffle furnace heats up to 500°C at a rate of 2°C / min, and then keeps it for 3 hours. Finally, take out the ultra-thin porous oxide powder...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Particle sizeaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses an acetylacetone gas sensitive material, a manufacturing method and an application thereof. The manufacturing method comprises the following steps of mixing a zinc source, hexamethylenetetramine and graphene oxide with water to prepare a solution; carrying out hydrothermal reaction on the prepared solution, collecting precipitates, and carrying out drying processing on theprecipitates to obtain a dry powder; and calcining the dry powder to obtain the acetylacetone gas sensitive material. By synthesizing a zinc oxide material with a special structure, sensitivity and selectivity of an acetylacetone gas sensor are improved, and a detection ability of acetylacetone is enhanced. The material, the method and the application are of great significance to ensure productionsafety, protect personal safety and prevent environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic materials and gas sensors, and in particular relates to an acetylacetone gas-sensitive material and a preparation method and application thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Acetylacetone is a colorless or light yellow transparent liquid, which has a wide range of applications in the fields of pharmaceuticals, spices, and pesticides. Acetylacetone is toxic and irritating, and its high concentration can cause poisoning symptoms such as headache, nausea and vomiting. Acetylacetone is flammable and explosive. Its vapor and air can form an explosive mixture, wh...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N33/00
CPCG01N33/0009G01N33/0047
Inventor 王新震崔洪芝刘凤军陈晓妍宋晓杰
Owner SHANDONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com