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Composite electrode, and preparation and application thereof in electric field detection

A composite electrode and electrode technology, applied in electrostatic field measurement and other directions, can solve problems such as poor sensor stability, achieve good quality specific capacitance, low cost, and facilitate mass production.

Active Publication Date: 2019-06-14
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of vertical suspended film electric field sensor has poor stability

Method used

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  • Composite electrode, and preparation and application thereof in electric field detection
  • Composite electrode, and preparation and application thereof in electric field detection
  • Composite electrode, and preparation and application thereof in electric field detection

Examples

Experimental program
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Effect test

Embodiment 1

[0045] A preparation method of a composite electrode, specifically comprising the following steps:

[0046] 1) Preparation of the substrate: Use FTO conductive glass as the precursor substrate and titanium sheet as the electrode substrate, cut the two into 1.25cm×2cm and 2cm×2.5cm samples respectively, and use distilled water, acetone, and ethanol to conduct ultrasonic waves on the samples in sequence Clean, remove impurities and oil on the surface, dry in a vacuum oven, and then put it in a nitrogen glove box for standby; then magnetron sputtering Zn on the precursor substrate FTO to form a Zn film with a thickness of about 400nm;

[0047] 2) Preparation of P-rGO hydrogel: first prepare 6mL hydrogel precursor aqueous solution, in which the concentration of GO is 1.5mg·mL -1 , the concentration of PEDOT:PSS is 0.045mg·mL -1 , the concentration of HCl is 0.016425 mg·mL -1 , then immerse Zn / FTO in the hydrogel precursor solution, react at room temperature for 12 hours, and obt...

Embodiment 2

[0053] A method for preparing a detection device, specifically comprising the following steps:

[0054] 1) Preparation of sensor device: 0.1g·mL -1 The PVA was stirred in ultrapure water for 2 h to obtain a clear solution, and then added H 2 SO 4 , the concentration is 0.1g·mL -1 , forming PVA / H under constant stirring 2 SO 4 Gel electrolyte, place the obtained two P-rGO electrodes horizontally and soak them in the gel electrolyte. After taking them out, place the aerogels face to face with a separator in the middle to form a sandwich-shaped symmetrical device, and let it dry naturally for 12 hours. The structure of the sensor device is as image 3 As shown, it includes electrode substrate 6, P-rGO two-dimensional thin film 7, P-rGO three-dimensional airgel 8, separator 9, P-rGO three-dimensional airgel 8, P-rGO two-dimensional thin film 7 and electrode from bottom to top. A substrate 6, and a gel electrolyte is filled between the P-rGO two-dimensional film 7, the P-rGO ...

Embodiment 3

[0062] A preparation method of a composite electrode, specifically comprising the following steps:

[0063] 1) Preparation of the substrate: Use FTO conductive glass as the precursor substrate and titanium sheet as the electrode substrate, cut the two into 1.25cm×2cm and 2cm×2.5cm samples respectively, and use distilled water, acetone, and ethanol to conduct ultrasonic waves on the samples in sequence Clean, remove impurities and oil on the surface, dry in a vacuum oven, and then put it in a nitrogen glove box for standby; then magnetron sputtering Zn on the precursor substrate FTO to form a Zn film with a thickness of about 400nm;

[0064] 2) Preparation of P-rGO hydrogel: first prepare 6mL hydrogel precursor aqueous solution, in which the concentration of GO is 1.5mg·mL -1 , the concentration of PEDOT:PSS is 0.0225mg·mL -1 , the concentration of HCl is 0.016425 mg·mL -1 , then immerse Zn / FTO in the hydrogel precursor solution, react at room temperature for 10 h, and obtain...

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Abstract

The invention discloses a composite electrode, and preparation and application thereof in electric field detection. The composite electrode comprises an electrode substrate and a P-rGO composite material, wherein the P-rGO composite material consists of a P-rGO two-dimensional thin film and P-rGO three-dimensional aerogel, and the P-rGO two-dimensional thin film and the P-rGO three-dimensional aerogel contain carbon, oxygen, sulfur and zinc. The preparation for the composite electrode comprises the following steps that: 1) preparing the substrate; 2) preparing the P-rGO aerogel; and 3) preparing a P-rGO aerogel. The preparation for the detection device comprises the following steps that: 1) preparing a sensing device; and 2) assembling the detection device. The composite electrode preparedby the invention has high electrochemical performance, anti-vibration performance and self-healing performance, the sensing device has good stability, the detection ability of the sensing device fora space electric field is superior to the detection ability of a common plane-parallel capacitor type sensing device, and the detection device has the advantages of being small in volume, low in cost,convenient in mass production and the like.

Description

technical field [0001] The invention relates to a composite electrode and its preparation and application in electric field detection, belonging to the technical field of electric field detection. Background technique [0002] The electric field is an objectively existing substance, and it is also a very important physical parameter. Electric field sensors are widely used to detect electric field strength. Electric field measurement is of great significance in many fields of scientific research and engineering technology. Therefore, electric field sensors are also widely used in aviation, aerospace, meteorology, electric power and other fields. According to the working principle of electric field sensors, electric field sensors can be divided into two categories: optical (fiber optic) and charge sensing. Optical (fiber optic) electric field sensors generally have complex structures and high costs. Because the optical electric field sensor has an insulating structure and has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/12C03C17/06
Inventor 曾玮董紫燕马悦吴常昊梁栋徐超黄林生
Owner ANHUI UNIVERSITY
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