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Preparation method of flexible sensor electrode modified by molybdenum disulfide quantum dots

A flexible sensor, molybdenum disulfide technology, applied in the direction of material electrochemical variables, coatings, etc., can solve the problems of inability to use wearable devices, poor electrical conductivity, single composite materials, etc., to achieve good film formation and environmental stability The effect of stability, superior performance and high transparency

Inactive Publication Date: 2017-12-15
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the field of sensor electrode materials, most of the prior art is to composite graphene on platinum carbon electrodes. The composite material is relatively simple, has poor electrical conductivity, has defects, and is not flexible, so it cannot be used in wearable devices, that is, it cannot be replaced. To give full play to the practical value of the sensor, it is necessary to develop a flexible sensor electrode material with better electrical conductivity and better detection performance than traditional sensors.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Preparation of oily film-forming solution

[0034] Add 1g of acrylonitrile-butadiene-styrene resin to 20mL of dichloromethane solution, stir and let it stand for a day to completely dissolve the acrylonitrile-butadiene-styrene resin into the dichloromethane solution to prepare A mass fraction of 5% acrylonitrile-butadiene-styrene resin solution was obtained.

[0035] (2) Preparation of poly(3,4-ethylenedioxythiophene-polystyrenesulfonic acid-graphene conductive composite material)

[0036] Take 20mg of graphene (add to 20mL of polystyrene sulfonic acid solution, ultrasonically disperse for 30min, then add 200uL of 3,4-ethylenedioxythiophene monomer, and add 10mL, 14mmoL / L dropwise while stirring Ferric chloride solution, continue to stir and react for 12 hours, centrifuge the prepared dark green slurry, and wash it repeatedly with absolute ethanol and distilled water for several times until the washing solution is colorless, collect the solid and dry it in vacuum at ...

Embodiment 2

[0048] (1) Preparation of oily film-forming solution

[0049] Add 1g of acrylonitrile-butadiene-styrene resin to 20mL of dichloromethane solution, stir and let it stand for a day to completely dissolve the acrylonitrile-butadiene-styrene resin into the dichloromethane solution to prepare A mass fraction of 5% acrylonitrile-butadiene-styrene resin solution was obtained.

[0050] (2) Preparation of poly(3,4-ethylenedioxythiophene-polystyrenesulfonic acid-graphene conductive composite material)

[0051] Add 20mg of graphene to 20mL of polystyrene sulfonic acid solution, ultrasonically disperse for 30min, then add 200uL of 3,4-ethylenedioxythiophene monomer, and add 10mL, 14mmoL / L chlorine dropwise while stirring. The ferric chloride solution was stirred and reacted for 12 hours, and the prepared dark green slurry was centrifuged, and washed repeatedly with absolute ethanol and distilled water until the washing liquid was colorless, and the solid was collected and vacuum-dried at...

Embodiment 3

[0063] (1) Preparation of oily film-forming solution

[0064] Add 1g of acrylonitrile-butadiene-styrene resin to 20mL of dichloromethane solution, stir and let it stand for a day to completely dissolve the acrylonitrile-butadiene-styrene resin into the dichloromethane solution to prepare A mass fraction of 5% acrylonitrile-butadiene-styrene resin solution was obtained.

[0065] (2) Preparation of poly(3,4-ethylenedioxythiophene-polystyrenesulfonic acid-graphene conductive composite material)

[0066] Add 20mg of graphene to 20mL of polystyrene sulfonic acid solution, ultrasonically disperse for 30min, then add 200uL of 3,4-ethylenedioxythiophene monomer, and add 10mL, 14mmoL / L chlorine dropwise while stirring. The ferric chloride solution was stirred and reacted for 12 hours, and the prepared dark green slurry was centrifuged, and washed repeatedly with absolute ethanol and distilled water until the washing liquid was colorless, and the solid was collected and vacuum-dried at...

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PUM

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Abstract

The invention relates to the field of a sensor electrode material. The invention discloses a preparation method of a flexible sensor electrode modified by molybdenum disulfide quantum dots. A flexible conductive thin film is prepared by a solution mixing method, wherein acrylonitrile-butadiene-styrene resin is used as a flexible substrate, poly 3,4-ethylenedioxythiophene-polystyrolsulfon acid-graphene is used as a conductive material, and an electrode is modified by the molybdenum disulfide quantum dots so as to obtain the flexible sensor electrode. The sensor electrode disclosed by the invention has the advantages of more excellent conductivity, high sensitivity and flexibility, and can be applied to the fields of medical biological monitoring, environment and hygienic monitoring and the like.

Description

technical field [0001] The invention relates to the field of sensor electrode materials, in particular to a method for preparing a flexible sensor electrode modified by molybdenum disulfide quantum dots. Background technique [0002] Sensors are human beings' own detection of various sensory information in nature, and can convert different signals and sensory information into important digital and intelligent devices. In the process of the rapid development of information technology in human civilization, sensors have played an increasingly important role. They are one of the important means for human beings to explore the unknown world, understand the real world and observe surrounding information. A sensor is an adjustable component that can convert non-electrical signals such as electricity, light, temperature, and chemical action into electrical signals. [0003] Graphene is a new class of carbon two-dimensional nano light material, with a unique two-dimensional cryst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L65/00C08K9/08C08K3/04C08K5/18C08J7/04C09D201/06C09D7/12G01N27/30
CPCC08L55/02C08J5/18C08J2355/02C08J2465/00C08K2003/3009C08K2201/001C08K2201/011C08L2203/16C08L2203/20C09D201/06G01N27/30C08L65/00C08K9/08C08K3/04
Inventor 万军民丁文凤胡智文王秉彭志勤
Owner ZHEJIANG SCI-TECH UNIV
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