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

A three-dimensional flower-shaped zinc hydroxyfluoride material and its preparation method and application in gas sensing detection

A flower-shaped zinc hydroxyfluoride and three-dimensional flower-shaped technology, which is applied in the application field of three-dimensional flower-shaped zinc hydroxyfluoride material and its preparation method and gas-sensing detection, and can solve the problem of morphology, crystal form, energy band structure and low conductivity , Long response recovery time, high working temperature, etc., to achieve the effect of improving gas sensing performance, wide detection concentration range, and low detection temperature

Active Publication Date: 2021-01-22
SHANDONG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As one of the most widely used semiconductor materials, zinc-based semiconductors, especially zinc oxide (ZnO) 2 However, a large number of studies have shown that pure ZnO is limited by its morphology, crystal form, energy band structure and low electrical conductivity, and shows poor selectivity and low sensitivity when detecting gas concentrations. , long response recovery time, high working temperature and other shortcomings

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
  • A three-dimensional flower-shaped zinc hydroxyfluoride material and its preparation method and application in gas sensing detection
  • A three-dimensional flower-shaped zinc hydroxyfluoride material and its preparation method and application in gas sensing detection
  • A three-dimensional flower-shaped zinc hydroxyfluoride material and its preparation method and application in gas sensing detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A preparation method of a three-dimensional flower-shaped zinc hydroxyfluoride material, comprising the following steps:

[0044] 1) 1.852g NH 4 Add F into 30mL deionized water, stir until completely dissolved;

[0045] 2) Add 0.2025 g of ZnO to the solution obtained in 1) for ultrasonic treatment for 30 min, and stir for 1 h to obtain a uniform turbid solution;

[0046] 3) Transfer the turbid liquid described in 2) to a 40mL autoclave, heat it with water at 120°C for 20h, and obtain a white precipitate after cooling. The precipitate is centrifuged, washed with water and absolute ethanol three times, and dried in an oven at 70°C for 12h. A powdery three-dimensional flower-shaped zinc hydroxyfluoride material is obtained.

Embodiment 2

[0048] A method for preparing a three-dimensional flower-shaped zinc hydroxyfluoride material is the same as the first embodiment, except that the molar ratios of the zinc source and the fluorine source in step 2) are 1:25 respectively.

Embodiment 3

[0050] A method for preparing a three-dimensional flower-shaped zinc hydroxyfluoride material is the same as the first embodiment, except that the molar ratio of zinc source to fluorine source in step 2) is 1:15.

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
sizeaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a three-dimensional flower-like hydroxyl zinc fluoride material, a preparation method and application thereof in gas sensitive detection. The material is of a micron-sized three-dimensional flower-like structure, the three-dimensional flower-like structure is composed of a plurality of ZnOHF nanorods, the size of the whole three-dimensional flower-like structure is 2-3 microns, the diameter of the nanorods is 100-200nm, and an exposed crystal face of the material is (310). The material is prepared by a hydrothermal process. As a gas sensitive material, the three-dimensional flower-like hydroxyl zinc fluoride material has a relatively good application effect in gas detection, and has the advantages of high sensitivity, good selectivity, low detection temperature andwide application range in NO2 detection.

Description

technical field [0001] The invention belongs to the technical field of gas sensing materials, and in particular relates to a three-dimensional flower-shaped zinc hydroxyfluoride material, a preparation method thereof and an application in gas sensing detection. 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] With the continuous development of science and technology and industry, the widespread popularization and use of automobiles and chemical fuels, the problem of air pollution is becoming more and more serious. As one of the most important gas pollutants, nitrogen dioxide (NO 2 ) has high chemical activity and strong oxidizing properties, and can react with moisture an...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/04G01N27/12B82Y40/00B82Y30/00
CPCB82Y30/00B82Y40/00C01G9/04C01P2002/72C01P2002/85C01P2004/03C01P2004/04C01P2004/61C01P2004/62G01N27/127
Inventor 吴莉莉姚星宇赵金博刘久荣
Owner SHANDONG UNIV
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