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Mixed-potential low-ppm acetone sensor based on YSZ and MNb2O6 sensitive electrode, and preparation method and application thereof

A hybrid potential type, sensitive electrode technology, applied in the application of diabetes detection, hybrid potential type low-ppm level acetone sensor field, can solve the problem that low ppm acetone detection cannot be realized, achieve good thermal stability and chemical stability, The effect of simple preparation method

Inactive Publication Date: 2016-09-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this acetone sensor has good sensitive performance, it cannot realize the detection of low ppm acetone, so it is still urgent to continue to develop the acetone sensor used in diabetes detection.

Method used

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  • Mixed-potential low-ppm acetone sensor based on YSZ and MNb2O6 sensitive electrode, and preparation method and application thereof
  • Mixed-potential low-ppm acetone sensor based on YSZ and MNb2O6 sensitive electrode, and preparation method and application thereof
  • Mixed-potential low-ppm acetone sensor based on YSZ and MNb2O6 sensitive electrode, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of CdNb by Sol-Gel Method 2 o 6 material, the prepared CdNb 2 o 6 As a sensitive electrode material, a YSZ-based hybrid potentiometric sensor was fabricated, and the gas sensitivity of the sensor to acetone was tested. The specific process is as follows:

[0037] 1. Make a Pt reference electrode: use Pt slurry to make a Pt reference electrode with a size of 0.5mm×2mm and a thickness of 15μm on one end of the upper surface of the YSZ substrate with a length and width of 2×2mm and a thickness of 0.2mm, and fold it in half with a Pt wire Then stick the electrode lead wire on the middle position of the reference electrode; then bake the YSZ substrate at 100°C for 1.5 hours, and then sinter the YSZ substrate at 1000°C for 1 hour, so as to eliminate the terpineol in the platinum paste, and finally reduce the to room temperature.

[0038] 2. Fabrication of CdNb 2 o 6 Sensitive electrode: first prepare CdNb by sol-gel method 2 o 6 Material. Weigh 3mmol of N...

Embodiment 2

[0044] NiNb 2 o 6 The material is used as a sensitive electrode material to make an acetone sensor. NiNb 2 o 6 The preparation process of the sensitive electrode material and the device fabrication process are the same as in Example 1.

Embodiment 3

[0046] ZnNb 2 o 6 The material is used as a sensitive electrode material to make an acetone sensor. ZnNb 2 o 6 The preparation process of the sensitive electrode material and the device fabrication process are the same as in Example 1.

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Abstract

The invention provides a mixed-potential low-ppm acetone sensor based on YSZ and a MNb2O6 (wherein M is one selected from a group consisting of Cd, Co, Zn, Mn and Ni) sensitive electrode and a preparation method. The mixed-potential low-ppm acetone sensor is mainly used for detection of diabetes. The sensor is successively composed of an Al2O3 ceramic plate with a Pt heating electrode, an YSZ substrate, a Pt reference electrode and the MNb2O6 sensitive electrode, wherein the reference electrode and the sensitive electrode are discrete and are symmetrically arranged on two ends of the upper surface of the YSZ substrate, the lower surface of the YSZ substrate is bonded with the Al2O3 ceramic plate equipped with the Pt heating electrode. According to the invention, the YSZ is used as an ionic conducting layer, and the MNb2O6 composite oxide material with high electrochemical catalytic activity is used as the sensitive electrode for construction of five sensing devices separately; and a device with higher sensitivity is obtained through comparison of acetone response values.

Description

technical field [0001] The invention belongs to the technical field of gas sensors, in particular to a sensor based on YSZ and MNb 2 o 6 (M: Cd, Co, Zn, Mn or Ni) sensitive electrode hybrid potential type low ppm grade acetone sensor, preparation method and its application in diabetes detection. Background technique [0002] Diabetes is a common endocrine and metabolic disease. With the improvement of national living standards, the number of diabetic patients in my country is increasing year by year, becoming the country with the largest number of diabetic patients in the world. Clinical medicine shows that acetone can be produced in diabetics, and the concentration of acetone in the breath of patients is significantly higher than that of normal people. The concentration of acetone in the breath of normal people is 0.3-0.9ppm, while that of diabetic patients exceeds 1.8ppm, which is 2-6 ppm higher. times. Therefore, acetone has been used as a breath marker for non-invasiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/407
CPCG01N27/407G01N27/4075G01N27/4076
Inventor 卢革宇刘方猛梁喜双孙鹏孙彦峰马健刘凤敏高原
Owner JILIN UNIV
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