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Benzene sensor membrane electrode and preparation method thereof

A technology of benzene sensor and membrane electrode, which is applied in the field of benzene sensor, can solve the problems of ineffective filtering of interfering gases, difficulty in integration, unusability, etc., and achieves the effects of high cost performance, simple preparation process, and convenient portability

Active Publication Date: 2017-12-19
广东南海普锐斯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In order to solve the problem that the existing benzene detection instruments are not only bulky and expensive, but also require professional operation, and cannot effectively filter out interfering gases. The problem that cannot be used, the primary purpose of the present invention is to provide a kind of preparation method of benzene sensor membrane electrode, and this preparation method process is simple, and cost is lower

Method used

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  • Benzene sensor membrane electrode and preparation method thereof

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Embodiment 1

[0036] The preparation method of the present embodiment benzene sensor membrane electrode is finished by following steps:

[0037] (1) Preparation of catalyst carrier: Add tungsten salt and potassium ferricyanide into water, after dissolving, add a certain amount of sucrose, stir for 1 hour at a speed of 150 rpm, and heat at 160°C for 8 hours , to obtain a precursor; wherein, the mass ratio of tungsten salt to potassium ferricyanide is 1:1, the mass ratio of tungsten salt to water is 1:100, and the mass ratio of sucrose to tungsten salt is 3:1; then, the precursor In an ammonia atmosphere, the temperature was raised to 900°C at a heating rate of 5°C / min, and held for 3.5h for ammonification treatment; after treatment with hydrochloric acid with a mass concentration of 10%, the tungsten nitride / crystalline carbon composite material was obtained , can be used as a catalyst carrier in the next step;

[0038] (2) Preparation of catalyst: Dissolve potassium chloroplatinate in wate...

Embodiment 2

[0041] Embodiment 2: The difference between this embodiment and embodiment 1 is: the tungsten salt described in step (1) is phosphotungstic acid, and all the other steps are the same.

Embodiment 3

[0042] Embodiment 3: what this embodiment is different from embodiment 2 is: the tungsten salt described in step (1) is sodium tungstate, and all the other steps are identical.

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Abstract

The invention discloses a benzene sensor membrane electrode and a preparation method thereof. The preparation method comprises the following steps: (1) preparation of catalyst carrier; (2) preparation of catalyst; (3) preparation of catalyst slurry; (4) preparation of membrane electrode. The product prepared by the invention is used for detecting benzene, has the advantages of simple manufacturing process, simple operation, good selectivity, low price, low price and convenient carrying, and can be used in important public places and families. The invention is applied to the detection of benzene. The invention solves the problem that the existing benzene detection instrument is not only bulky and expensive, but also needs professional operation, and it cannot effectively filter out the interfering gas. The problem of unavailability of the place.

Description

technical field [0001] The invention belongs to the technical field of benzene sensors, and in particular relates to a membrane electrode of a benzene sensor and a preparation method thereof. Background technique [0002] With the continuous development of social economy, people's requirements for the living environment are gradually increasing, such as for various flammable, explosive and harmful gases. In recent years, incidents of people being poisoned and killed by benzene have been frequently reported by major media across the country, which has brought great trouble, pain and panic to the general public. Benzene can be used as a raw material for the manufacture of rubber, paint, plastics, dyes, etc. It is a very important organic solvent and chemical raw material. For the current home decoration, it is unavoidable to be applied in decoration materials. In addition, benzene, as a disinfectant, preservative, fumigant, etc., is also commonly found around people, serious...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30
Inventor 袁定胜王蕾冯贺
Owner 广东南海普锐斯科技有限公司