Polymer film modified electrode and preparation method and application thereof

A polymer film and modified electrode technology, applied in the direction of material electrochemical variables, etc., can solve the problems of short service life, easy poisoning, etc., and achieve high yield, low cost, and good electrode response sensitivity

Inactive Publication Date: 2005-09-14
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pt and other precious metals are very effective catalysts for the dehydrogenation and oxidation of alcohols, but there are disadvantages of easy poisoning, and the service life is very short.

Method used

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  • Polymer film modified electrode and preparation method and application thereof
  • Polymer film modified electrode and preparation method and application thereof
  • Polymer film modified electrode and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 100mL of 1.0mol / L HCl aqueous solution into a 250mL three-necked flask, put it in an ice bath, and ventilate nitrogen to exhaust oxygen. After the temperature stabilizes at about 2-3°C, add 2.14g of o-toluidine dropwise, [M]=0.01mol / L, Stir well and add 2 drops of saturated CoSO 4solution as a catalyst. Dissolve ammonium persulfate (APS) in 60mL of 1.0mol / L HCl solution, [APS] / [M]=1, slowly drop into the three-necked bottle, about 2.0h to complete the drop. After continuing the reaction for 10 hours, the reaction solution was placed in a refrigerator at 5°C for 36 hours; then the obtained reaction solution was suction-filtered, and the solid content was washed with deionized water until the filtrate was neutral, and then washed several times with ethanol until the filtrate was colorless; Vacuum-dried at 60°C to obtain HCl-doped POT(HCl). Soak the POT (HCl) in 25% ammonia water for 24-48 hours, continue to stir, filter, wash with deionized water until the filtrate ...

Embodiment 2

[0032] Add 120mL of 1.0mol / L TSA aqueous solution into a 250mL three-necked flask, put it in an ice bath, pass nitrogen gas to exhaust oxygen, wait for the temperature to stabilize at around 2-3°C, add 1.5g o-toluidine dropwise, [M]=0.087mol / L, Stir well and add 3 drops of saturated CoSO 4 solution as a catalyst. Dissolve APS in 40mL of 1.0mol / L TSA solution, [APS] / [M]=1.5, slowly drop into the three-necked bottle, about 1.5h to finish. After continuing the reaction for 6 hours, the reaction solution was placed in a refrigerator at 6°C for 48 hours; then the obtained reaction solution was suction-filtered, and the solid content was washed with deionized water until the filtrate was neutral, and then washed several times with ethanol until the filtrate was colorless; Vacuum drying at room temperature to obtain green doped POT (TSA).

[0033] Prepare POT (TSA) into a 3.0mg / mL DMF solution, and use a micro-vortex mixer to aid dissolution; take a certain amount of polymer soluti...

Embodiment 3

[0036] Add 100mL 1.0mol / L HClO to a 250mL three-necked bottle 4 Aqueous solution, ice bath, blow nitrogen to exhaust oxygen, wait for the temperature to stabilize at around 2-3°C, add dropwise 3.0g of o-toluidine, [M]=0.175mol / L, stir well, add 3 drops of saturated CoSO 4 solution as a catalyst. Dissolve APS in 100mL 1.0mol / L TSA solution, [APS] / [M]=2, slowly drop into the three-necked bottle, about 3.0h to finish. After continuing the reaction for 15 hours, the reaction solution was placed in a refrigerator at 8°C for 24 hours; then the obtained reaction solution was suction-filtered, and the solid content was washed with deionized water until the filtrate was neutral, and then washed several times with ethanol until the filtrate was colorless; Vacuum drying at 40°C to obtain green doped POT (HClO 4 ). POT(HClO 4 ) soaked in 25% ammonia water for 24 to 48 hours, continuously stirred, filtered, washed with deionized water to make the filtrate neutral, and then washed with ...

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Abstract

The invention discloses a polymer membrane modification electrode, its process method and application, wherein, the electrode relates to a conductive polymer metal membrane modification electrode and is mainly used to detect water pollutant isopropanol.Its process method supplies a polymer membrane modification electrode and uses it to process isopropanol detection sensor comprising inert electrode base, conducting polymer membrane and catalyser, wherein, conductive polymer membrane is eigen state orthotoluidine and polymer membrane adhesion in nert electrode base electrode surface is 0.3-1.0mgíñcm-2. Its steps are as follows: processing polymer membrane modification electrode in coating method and metallising polymer membrane.

Description

technical field [0001] The invention relates to a conductive polymer metallized film modified electrode, in particular to a polymer film modified electrode mainly used in the detection of water pollutant isopropanol, a preparation method and application thereof. Background technique [0002] Isopropanol is a widely used chemical reagent and organic solvent, widely used in the fine chemical industry. Isopropanol is commonly used as a solvent in pharmaceutical factories, and a large amount of waste water containing isopropanol will be produced in the production process. The photosensitive material industry uses 50% and 100% organic solvent isopropanol for cleaning in the process of producing photosensitive resin and preparing developer and coating solution, so that the discharged waste liquid and device flushing water contain a large amount of isopropanol. This part of isopropanol wastewater is one of the important sources of pollution in these industries. If these wastewate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30
Inventor 戴李宗许一婷陈江枫吴辉煌
Owner XIAMEN UNIV
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