Preparation method of nitric oxide gas sensor element based on pseudodirected tungsten trioxide nano tape

A technology of gas sensor and nitrogen oxide, which is applied in the direction of material resistance, can solve the problems of low sensitivity and high power consumption of nitrogen oxide gas, and achieve the effects of low power consumption, low operating temperature and high sensitivity
CN102012386AInactive Publication Date: 2011-04-13TIANJIN UNIV
4 Cites 18 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2011-04-13
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a preparation method of a nitric oxide gas sensor element based on a pseudodirected tungsten trioxide nano tape, which comprises the steps of: 1, preparing a tungsten hexachloride solution; 2, regulating the mol concentration of tungsten hexachloride to be 0.003-0.012M; 3, synthesizing a pseudodirected tungsten oxide nano wire; 4, preparing a pseudodirected tungsten oxide nano wire; 5, preparing a sensitive material slurry; and 6, preparing the sensor element based on the pseudodirected tungsten trioxide nano tape. The sensor element based on the pseudodirected tungsten trioxide nano tape, prepared by using the method, has the advantages of high sensitivity, high selectivity, low working temperature and low power consumption for the low-concentration nitric oxide gas detection.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a nitrogen oxide gas sensor, in particular to a method for preparing a nitrogen oxide gas sensor element based on a quasi-aligned tungsten trioxide nanobelt. Background technique

[0002] The development of modern industry has produced a large amount of flammable, explosive, toxic and harmful gases, among which nitrogen oxides (NO X ) is a typical air pollutant that can cause serious environmental problems such as acid rain and photochemical smog, and pose a huge threat to human health. Research for NO X High-performance gas sensor materials and devices for accurate detection and monitoring are of great significance to the protection of the environment and human health. Semiconducting metal oxides are a class of NO X The gas-sensing material with good sensitivity performance, its gas-sensing mechanism belongs to the surface resistance control type, and the detection of gas is based on the modulation process of the surface re...

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