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Ion sensor based on MXene electrodes and preparation method of ion sensor

An ion sensor and electrode technology, which is applied in the field of ion sensors based on MXene electrodes and their preparation, can solve the problems of complex and time-consuming preparation of ion sensor structures, and achieve the effects of simple structure, increased stability, and increased distance.

Active Publication Date: 2020-10-30
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the ion sensor in the prior art needs to plate metal electrodes on the surface of the polymer, which leads to a complicated and time-consuming preparation process of the ion sensor structure.

Method used

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  • Ion sensor based on MXene electrodes and preparation method of ion sensor
  • Ion sensor based on MXene electrodes and preparation method of ion sensor
  • Ion sensor based on MXene electrodes and preparation method of ion sensor

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Preparation method of ion sensor based on MXene electrode

[0055] (1) Preparation of ionic polymer layer solution: 0.5g ionic liquid EMIBF 4 and 1.0 g of thermoplastic polyurethane (TPU) were added into 15 g of DMF, and stirred at 70° C. for 10 hours at a speed of 600 r / min, and the obtained TPU ionic liquid solution was the ionic polymer layer solution.

[0056] (2) Preparation of ionic polymer membrane: the area is 25*75mm 2 Place the glass sheet template horizontally in the heating box, and adjust the temperature in the heating box to 70°C. Then use a pipette gun to take out 1ml of the ionic polymer layer solution each time and drop it onto the glass slide for a total of 2 drops. Dry it in a heating box for 2 hours, and then take it out to prepare an ionomer membrane.

[0057] (3) Place the ionomer film on the glass plate horizontally on the heating platform, and adjust the temperature to 45°C. Then drop-coat 2ml of 10mg / ml MXene electrode solution on the surfac...

Embodiment 2

[0061] Preparation method of ion sensor based on MXene electrode

[0062] (1) Preparation of ionic polymer layer solution: 1 g of ionic liquid EMIBF 4 and 1.0 g of thermoplastic polyurethane (TPU) were added into 15 g of DMF, and stirred for 20 hours at 70° C. with a rotation speed of 600 r / min, and the obtained TPU ionic liquid solution was the ionic polymer layer solution.

[0063] (2) Preparation of ionic polymer membrane: the area is 25*75mm 2 Place the glass sheet template horizontally in the heating box, and adjust the temperature in the heating box to 70°C. Then use a pipette gun to take out 1ml of the ionic polymer layer solution each time and drop it onto the glass slide for a total of 3 times. Dry it in a heating box for 2 hours, and then take it out to prepare an ionomer membrane.

[0064] (3) Place the ionomer film on the glass plate horizontally on the heating platform, and adjust the temperature to 45°C. Then drop-coat 1ml of 5mg / ml MXene electrode solution o...

Embodiment 3

[0068] Preparation method of ion sensor based on MXene electrode

[0069] (1) Preparation of ionic polymer layer solution: 1 g of ionic liquid EMIBF 4 and 1.0 g of thermoplastic polyurethane (TPU) were added into 15 g of DMF, and stirred at 70° C. for 10 hours at a speed of 600 r / min, and the obtained TPU ionic liquid solution was the ionic polymer layer solution.

[0070] (2) Preparation of ionic polymer membrane: the area is 25*75mm 2 Place the glass sheet template horizontally in the heating box, and adjust the temperature in the heating box to 70°C. Then use a pipette gun to take out 3ml of ionomer layer solution each time and drop onto the glass slide. Dry it in a heating box for 2 hours, and then take it out to prepare an ionomer membrane.

[0071] (3) Place the ionomer film on the glass plate horizontally on the heating platform, and adjust the temperature to 45°C. Then drop-coat 2ml of 10mg / ml MXene electrode solution on the surface of the ionic polymer membrane an...

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Abstract

The invention discloses an ion sensor based on MXene electrodes. The invention relates to the technical field of flexible ion sensors. The ion sensor comprises an ionic polymer film and two electrodelayers containing MXene, the ionic polymer film is located between the two electrode layers containing MXene, and the ionic polymer film is mainly made of ionic liquid and thermoplastic polyurethane.The invention also comprises a preparation method of the ion sensor. The ion sensor disclosed by the invention has the beneficial effects that the ion sensor does not need to be electroplated with metal electrodes, and the electrode layers containing MXene can be directly used as electrodes.

Description

technical field [0001] The invention relates to the technical field of flexible ion sensors, in particular to an ion sensor based on MXene electrodes and a preparation method thereof. Background technique [0002] When the breeze blows across the water surface, obvious ripples can be seen on the water surface. When an object is immersed in the water, the water can easily change its shape to accommodate the foreign object. Molecules diffuse more easily in liquids than in solids, and thus can more easily sense external stimuli. When ions exist in the solution, they are easy to diffuse with the solution, so different electrical signals can be brought to a specific location to be identified. For example, all types of cells in biological systems can obtain information through ion exchange. The ion sensor is a sensing system based on ion transport, which contains ions that can move freely like liquid molecules, so it has a stronger ability to recognize dynamic tiny stimuli than o...

Claims

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Application Information

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IPC IPC(8): G01B7/16G01L1/00B05D1/26B05D7/24B29C41/24B29L7/00
CPCG01B7/16G01L1/00B29C41/24B05D1/26B05D7/24B29L2007/002
Inventor 胡颖朱克福吴玉程金珂沈锦杰王枭杰常龙飞刘家琴
Owner HEFEI UNIV OF TECH
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