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Sensitive material and formaldehyde sensitive component produced with sensitive material and method for producing sensitive component

A technology of sensitive materials and sensitive components, which is applied in the direction of analyzing materials, analyzing materials through electromagnetic means, measuring devices, etc., can solve the problems of long recovery time, high working temperature, long response time, etc., and achieve improved stability and good stability sexual effect

Inactive Publication Date: 2007-08-22
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of long response time, long recovery time and high working temperature in the existing sensitive elements for measuring formaldehyde, the present invention provides a sensitive material, a formaldehyde sensitive element made of sensitive material and a method for making the sensitive element

Method used

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  • Sensitive material and formaldehyde sensitive component produced with sensitive material and method for producing sensitive component
  • Sensitive material and formaldehyde sensitive component produced with sensitive material and method for producing sensitive component
  • Sensitive material and formaldehyde sensitive component produced with sensitive material and method for producing sensitive component

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specific Embodiment approach 1

[0014] Specific embodiment one: the general formula of the sensitive material in this embodiment is B 2-a A b o 3 , wherein A is Sn, Pb, Ti or Zr, B is Mo, W, Cr or Mn, 0

[0015] The sensitive material in this embodiment is prepared by a conventional combustion method.

specific Embodiment approach 2

[0016] Embodiment 2: In this embodiment, A is Pb, Ti or Zr. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Embodiment 3: In this embodiment, B is Mo, Cr or Mn. Others are the same as in the first embodiment.

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Abstract

This invention is a manufacturing method of the sensitive material, formaldehyde sense organ made by sensitive material and the sense organ. It relates to a sensitive material that can detect formaldehyde, sense organ that can measure the viscosity of formaldehyde and the manufacturing method. This invention settles the problem of long-time response and recovery, high working temperature of the current sense organ to detect formaldehyde. The general formula of the sensitive material is B2-aAbO3, A is Sn,Pb,Ti or Zr, B is Mo, W,Cr or Mn, 0 G01N 35 / 00 G01N 27 / 00 3 7 2 2007 / 3 / 14 101021544 2007 / 8 / 22 000000000 Heilongjiang Univ. Harbin 150080 Huo Lihua P. Suman Zhao Hui Gao Shan Cheng Xiaoli hanmo zhu 23109 The Patent Agency of Songhuajiang Prefecture of Heilongjiang Province No.6 Hexing Street, Dongli District, Harbin, Heilongjiang Province 150040

Description

technical field [0001] The invention relates to a sensitive material for detecting formaldehyde gas, a sensitive element for measuring formaldehyde concentration and a preparation method thereof. Background technique [0002] The metal oxide formaldehyde sensitive element materials that have been studied so far mainly include SnO 2 NiO-based, NiO-based, and CuO-based, among which NiO-based thin film sensitive elements can detect a minimum of 25ppm formaldehyde at 600°C, with a response time of 10 seconds and a recovery time of 1 to 3 minutes; SnO 2 Based on sintered body type sensitive element, at 600°C, the lowest detectable formaldehyde is 0.2ppm, but the response and recovery time are long, both in the range of several minutes; -4 mol / L formaldehyde has good sensitivity. However, the stability of these materials has not been reported. In addition, sensitive elements made of these materials also have the disadvantages of long response-recovery time and high operating te...

Claims

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Application Information

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IPC IPC(8): G01N35/00G01N27/00
Inventor 霍丽华P・苏曼赵辉高山程晓丽
Owner HEILONGJIANG UNIV
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