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Ethanol sensor based on horseshoe-shaped SO2 sensitive material having annular meso-pores, and production method of sensor

A horseshoe-shaped and circular-shaped technology, applied in the direction of material analysis, material analysis by electromagnetic means, instruments, etc., to achieve the effects of good material crystallinity, improved sensitivity, and simple manufacturing process

Inactive Publication Date: 2016-12-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Currently, based on SnO 2 There have been many reports on ethanol sensors, but horseshoe-shaped SnO with ordered annular mesoporous 2 rarely reported

Method used

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  • Ethanol sensor based on horseshoe-shaped SO2 sensitive material having annular meso-pores, and production method of sensor
  • Ethanol sensor based on horseshoe-shaped SO2 sensitive material having annular meso-pores, and production method of sensor
  • Ethanol sensor based on horseshoe-shaped SO2 sensitive material having annular meso-pores, and production method of sensor

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Embodiment 1

[0041] Horseshoe-shaped SnO with circular mesopores 2 Sensitive material made as sensitive material C 2 h 5 OH sensor, its specific production process:

[0042] 1. First, dissolve 0.4g of the tin precursor sodium stannate in 100mL of deionized water, and then dissolve 1.0g of cetylpyridinium chloride in 20mL of ethanol solution. After stirring at room temperature for 45 minutes, the two solutions were mixed together and continued to stir for 60 minutes;

[0043] 2. Add 5 μL of 1,3,5-trimethylbenzene to the above mixed solution and continue to stir for 60 minutes. After standing and aging at room temperature for 72 h, the obtained precipitate was centrifuged and washed once with deionization. The resulting product was soaked in 20 mL of an aqueous solution of phosphoric acid. After 4 hours, wash and centrifuge 6 times with deionized water and ethanol. The product was dried at 100°C, and the obtained powder was calcined at 400°C for 4h. That is, horseshoe-shaped SnO with ...

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Abstract

The invention relates to an ethanol sensor based on a horseshoe-shaped SO2 sensitive material having annular meso-pores, and a production method of the sensor, and belongs to the technical field of semiconductor oxide gas sensors. The horseshoe-shaped SO2 sensitive material having annular meso-pores, prepared through using a soft template technology, is used in the invention. The large specific surface area and the ordered pore structure of the meso-porous material are used to effectively improve the sensitive property of the sensor to C2H5OH. The sensor structure is composed of an Al2O3 insulating ceramic tube with two annular gold electrodes, a semiconductor sensitive material coated on the annular gold electrodes and the Al2O3 insulating ceramic tube, and a nickel-chromium alloy heating coil traversing through the Al2O3 insulating ceramic tube. The sensor disclosed in the invention has the advantages of simple process, small size, and suitableness for large-batch production, so the sensor has wide application prospect in the detection of the content of C2H5OH in environment.

Description

technical field [0001] The invention belongs to the technical field of semiconductor oxide gas sensors, in particular to a horseshoe-shaped SnO sensor with circular mesopores 2 C for sensitive materials 2 h 5 OH sensor and preparation method. Background technique [0002] Ethanol (C 2 h 5 OH) is an organic substance, commonly known as alcohol, which is a saturated monohydric alcohol with a hydroxyl group. It is a flammable and volatile colorless transparent liquid at normal temperature and pressure. Its aqueous solution has a boozy smell and is slightly irritating. Ethanol has a wide range of uses. Ethanol can be used to make acetic acid, beverages, flavors, dyes, fuels, etc. Ethanol with a volume fraction of 70% to 75% is also commonly used as a disinfectant in medical treatment. It is widely used in national defense industry, medical and health care, organic synthesis, food industry, and industrial and agricultural production. However, ethanol as a central nervous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00
CPCG01N27/00
Inventor 卢革宇王莹麟高原孙鹏孙彦峰刘凤敏马健
Owner JILIN UNIV
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