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Preparation method of wearable gas-liquid difunctional alcohol electrochemical sensor

A dual-function, electrochemical technology, applied in the direction of electrochemical variables of materials, can solve the problem that the sensing performance needs to be improved, and achieve the effects of strong substrate applicability and environmental applicability, fast response and recovery process, and wide detection range

Inactive Publication Date: 2020-03-24
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, methanol sensors currently used in fuel cells are extremely susceptible to interference from copper ions, iron ions, etc., and the sensing performance needs to be improved.

Method used

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  • Preparation method of wearable gas-liquid difunctional alcohol electrochemical sensor
  • Preparation method of wearable gas-liquid difunctional alcohol electrochemical sensor
  • Preparation method of wearable gas-liquid difunctional alcohol electrochemical sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A preparation method of a wearable gas-liquid bifunctional alcohol electrochemical sensor, the preparation method comprising the following steps:

[0044] Make a screen for screen-printing a three-electrode sensor array, the area of ​​the counter electrode is 1.2 times the area of ​​the working electrode, and the distance between the three electrodes is 2 mm;

[0045] Based on polyethylene terephthalate (PET), conductive carbon paste, conductive silver paste and insulating ink are used as screen printing pastes to make sensor arrays, conductive carbon paste to make counter electrodes and working electrodes, conductive silver paste Paste is used to make conductive strips and reference electrodes, and insulating ink is used to limit the three-electrode area;

[0046] Add 100% platinum-based catalyst with platinum content, perfluorosulfonic acid (Nafion) and ethanol to every 150 μL of ethanol, add 30 mg platinum-based catalyst with 100% platinum content, 50 mg perfluorosul...

Embodiment 2

[0049] A preparation method of a wearable gas-liquid bifunctional alcohol electrochemical sensor, the preparation method comprising the following steps:

[0050] Make a screen for screen-printing a three-electrode sensor array, the area of ​​the counter electrode is 1.2 times the area of ​​the working electrode, and the distance between the three electrodes is 2 mm;

[0051] Based on polyethylene terephthalate (PET), conductive carbon paste, conductive silver paste and insulating ink are used as screen printing pastes to make sensor arrays, conductive carbon paste to make counter electrodes and working electrodes, conductive silver paste Paste is used to make conductive strips and reference electrodes, and insulating ink is used to limit the three-electrode area;

[0052] Carrier is the platinum-based catalyst with 5% platinum content of activated carbon, perfluorosulfonic acid (Nafion) and ethanol with every 150 μ L of ethanol, add 30 mg carrier with platinum-based catalyst w...

Embodiment 3

[0055] A preparation method of a wearable gas-liquid bifunctional alcohol electrochemical sensor, the preparation method comprising the following steps:

[0056] Make a screen for screen-printing a three-electrode sensor array, the area of ​​the counter electrode is 1.2 times the area of ​​the working electrode, and the distance between the three electrodes is 2mm;

[0057] Based on polyethylene terephthalate (PET), conductive carbon paste, conductive silver paste and insulating ink are used as screen printing pastes to make sensor arrays, conductive carbon paste to make counter electrodes and working electrodes, conductive silver paste Paste is used to make conductive strips and reference electrodes, and insulating ink is used to limit the three-electrode area;

[0058] Carrier is the platinum-based catalyst with 10% platinum content of activated carbon, perfluorosulfonic acid (Nafion) and ethanol with every 150 μ L of ethanol, add 30 mg carrier with platinum-based catalyst w...

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Abstract

The invention relates to a preparation method of a wearable gas-liquid difunctional alcohol electrochemical sensor, and belongs to the field of wearable gas-liquid difunctional alcohol electrochemicalsensors. The preparation method comprises the following steps: manufacturing a screen printing plate of a silk-screen printing three-electrode sensor array; carrying out silk-screen printing on the silk-screen printing slurry on a flexible substrate to manufacture a sensor array; modifying an electroactive material; and modifying the solid electrolyte to obtain the wearable gas-liquid bifunctional alcohol electrochemical sensor. The wearable gas-liquid bifunctional alcohol electrochemical sensor prepared by the invention shows extremely strong substrate applicability and environmental applicability, and still shows considerable sensing stability in certain stretching and bending states as a flexible sensor.

Description

technical field [0001] The invention relates to a preparation method of a wearable gas-liquid dual-function alcohol electrochemical sensor, belonging to the field of wearable gas-liquid dual-function alcohol electrochemical sensors. Background technique [0002] Methanol is a basic synthetic material in the chemical industry and is widely used in pharmaceuticals, agriculture and biology. However, methanol, as a volatile organic compound, can poison the human nervous and blood systems. Therefore, the development of a sensor for real-time monitoring of methanol vapor concentration in the air is crucial to production safety. So far, a series of gas-sensing materials based on indium tin oxide thin films, titanium dioxide thin films, polymer-functionalized carbon nanotubes, conductive polypyrrole, perovskites, and indium oxide-tin oxide nanofibers have been fabricated for different applications. Methanol gas sensor. Despite the good reproducibility of these sensors, high opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N27/30
CPCG01N27/26G01N27/30
Inventor 朱楠江禹马俊林马鸿婷
Owner DALIAN UNIV OF TECH
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