CN101329293A - Semiconductor gas sensor for alcohol steam and expiration alcohol detection - Google Patents
Semiconductor gas sensor for alcohol steam and expiration alcohol detection Download PDFInfo
- Publication number
- CN101329293A CN101329293A CNA2007101234393A CN200710123439A CN101329293A CN 101329293 A CN101329293 A CN 101329293A CN A2007101234393 A CNA2007101234393 A CN A2007101234393A CN 200710123439 A CN200710123439 A CN 200710123439A CN 101329293 A CN101329293 A CN 101329293A
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- Prior art keywords
- gas sensor
- alcohol
- semiconductor gas
- expiration
- detection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a semiconductor gas sensor used for alcohol steam and expiration alcohol detection. The semiconductor gas sensor adopts the raw materials as follows: SnO2, ZnO, La2O3, Al2O3, SiO2, MgO, CaO, Sb2O3, Pd/PdO/Pd and Pt/Pto/Pt to form the sensitive material by coprecipitation, mixing or solid-phase mixing. The invention also relates to a preparation method of the semiconductor gas sensor. The gas sensor of the invention has excellent sensitiveness and exactness to the alcohol steam or the expiration alcohol, is hardly disturbed or not disturbed by alkanes and has good selection on the alcohol; therefore, the semiconductor gas sensor and the preparation method thereof are especially suitable for the excessive drinking detection of industrial environment, high-risk operation people and locomotive drivers.
Description
Technical field
The present invention relates to the gas sensor field, specifically, is a kind of semiconductor gas sensor that is used for alcohol steam and expiration alcohol detection.
Background technology
It is at present, domestic that still not have manufacturer production be the semiconductor type gas sensor that material of main part is made with the nano-oxide of Sn.It is the semiconductor type gas sensor that material of main part is made with the nano-oxide of Sn that Figaro is abroad arranged, but prescription is different with the present invention.Also having in addition some is the sensors that adopt Catalysis Principles or infrared ray principle to make.The catalysis element operation principle is for when the catalyst on the platinum heater strip contacts with fuel gas, owing to the effect of catalyst makes gas combustion cause temperature rise, causes the increase of platinum wire resistance, detects fuel gas with this.Infrared ray gas analyzer detects principle, infrared light to 2-10 mum wavelength scope, different heteronuclear gas molecules are because the infrared light that rotates and vibrate different wave length has special absorption, when the tested gas of infrared light transmission, the disappearance of detection infrared spectrum and the variation of luminous intensity can realize the detection to gas.
Summary of the invention
The present invention proposes a kind of brand-new semiconductor gas sensor that is used for alcohol steam and expiration alcohol detection.This sensor can improve the sensitivity to alcohol detection, selective and accuracy, thereby is particularly suitable for industrial environment, high-risk operations crowd and motor vehicle driving personnel's excessive drinking detection.
Different from the principle of sensor in the background technology is that the present invention has utilized the variation of the imflammable gas concentration of sensitive body electrical resistance contact under heating condition to form the characteristic that logarithmic relationship changes, and realizes the detection to imflammable gas.
The present invention solves the technical scheme that its technical matters takes:
This semiconductor gas sensor by the raw material of following weight portion, consists of sensitive material and makes through co-precipitation, doping or solid phase mixing:
SnO
20.5-99 part
ZnO 0.01-50 part
La
2O
30.01-20 part
Al
2O
30.01-20 part
SiO
20.01-20 part
MgO 0.01-20 part
CaO 0.01-20 part
Sb
2O
30.01-30 part
Pd/PdO/Pd 0.01-50 part
Pt/PtO/Pt 0.01-50 part.
The preparation method of semiconductor gas sensor is with raw material SnO
2, ZnO, La
2O
3, Al
2O
3, SiO
2, MgO, CaO, Sb
2O
3, Pd/PdO/Pd and Pt/PtO/Pt consist of sensitive material and make through co-precipitation, doping or solid phase mixing.
Advantage of the present invention is:
(1) gas sensor of the present invention's description has excellent sensitivity and accuracy to alcohol steam or expiration alcohol.
(2) sensor described in the invention is subjected to alkanes to disturb less or does not disturb and alcohol is had good selectivity.
(3) the present invention is suitable for industrial environment, high-risk operations crowd and motor vehicle driving personnel's excessive drinking detection especially.
Embodiment
Embodiment 1
Get following raw material: 6.0 gram nano SnO
2, 0.6 the gram ZnO, 0.3 the gram La
2O
3, 1.0 the gram Al
2O
3, 0.8 the gram SiO
2, 0.2 the gram MgO, 0.2 the gram CaO, 0.1 the gram Sb
2O
3, 0.12 the gram Pd/PdO/Pd and 0.18 the gram Pt/PtO/Pt, for subsequent use.
Get 6.0 gram nano SnO
2, 0.6 the gram ZnO, 0.3 the gram La
2O
3, 1.0 the gram Al
2O
3, 0.8 the gram SiO
2, 0.2 the gram MgO, 0.2 the gram CaO, 0.1 the gram Sb
2O
3, behind co-precipitation, doping or solid phase mixing sintering, become sensitive body.Then 0.12 gram Pd/PdO/Pd, 0.18 gram Pt/PtO/Pt are doped in the sensitive body, through grinding, coating, sintering, namely get semiconductor gas sensor.
More than the semiconductor gas sensor that detects for alcohol steam and expiration alcohol provided by the present invention is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. one kind is used for the semiconductor gas sensor that alcohol steam and expiration alcohol detect, and it is characterized in that, by the raw material of following weight portion, constitutes sensitive material and makes through co-precipitation, doping or solid phase mixing:
SnO
20.5-99 part
ZnO 0.01-50 part
La
2O
30.01-20 part
Al
2O
30.01-20 part
SiO
20.01-20 part
MgO 0.01-20 part
Sb
2O
30.01-30 part
CaO 0.01-20 part
Pd/PdO/Pd 0.01-50 part
Pt/PtO/Pt 0.01-50 part.
2. the preparation method of the described semiconductor gas sensor that detects for alcohol steam and expiration alcohol of claim 1 is characterized in that: with raw material SnO
2, ZnO, La
2O
3, Al
2O
3, SiO
2, MgO, CaO, Sb
2O
3, Pd/PdO/Pd and Pt/PtO/Pt consist of sensitive material and make through co-precipitation, doping or solid phase mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101234393A CN101329293B (en) | 2007-06-22 | 2007-06-22 | Semiconductor gas sensor for alcohol steam and expiration alcohol detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101234393A CN101329293B (en) | 2007-06-22 | 2007-06-22 | Semiconductor gas sensor for alcohol steam and expiration alcohol detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101329293A true CN101329293A (en) | 2008-12-24 |
| CN101329293B CN101329293B (en) | 2012-05-23 |
Family
ID=40205208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101234393A Active CN101329293B (en) | 2007-06-22 | 2007-06-22 | Semiconductor gas sensor for alcohol steam and expiration alcohol detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101329293B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949887A (en) * | 2010-08-20 | 2011-01-19 | 郑州炜盛电子科技有限公司 | Semiconductor gas sensor and various gas detection method thereof |
| CN102608170A (en) * | 2011-10-08 | 2012-07-25 | 北京中科微纳物联网技术股份有限公司 | High-performance gas sensor |
| CN104671774A (en) * | 2015-03-06 | 2015-06-03 | 清华大学深圳研究生院 | Anti-Co-interference ethanol sensing material, preparation method and gas sensing element |
| CN104977320A (en) * | 2015-06-03 | 2015-10-14 | 胡齐放 | Ceramic gas-sensitive sensor for alcohol detection |
| CN105628871A (en) * | 2015-12-28 | 2016-06-01 | 武汉巨正环保科技有限公司 | Ethyl alcohol gas detection system and method |
| CN105929003B (en) * | 2016-04-12 | 2018-06-26 | 吉林大学 | A kind of preparation method of catalysis filter membrane for improving gas sensor selectivity |
| CN110735114A (en) * | 2019-09-30 | 2020-01-31 | 安徽省含山县锦华氧化锌厂 | composition for semiconductor sensor based on zinc oxide doping |
| CN114839231A (en) * | 2022-04-27 | 2022-08-02 | 河南森斯科传感技术有限公司 | Anti-interference gas-sensitive coating for semiconductor combustible gas sensor and preparation method and application thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3671529D1 (en) * | 1985-02-12 | 1990-06-28 | New Cosmos Electric Co | ALCOHOL SELECTIVE GAS SENSOR. |
| CN1033717C (en) * | 1994-03-17 | 1997-01-01 | 中国科学院长春应用化学研究所 | Method for making sensor of CO gas at normal atmospheric temp. |
| CN1044833C (en) * | 1996-07-16 | 1999-08-25 | 昆明贵金属研究所 | Alcohol-sensitive tin dioxide element and its preparation |
| JP2000074866A (en) * | 1998-06-16 | 2000-03-14 | Figaro Eng Inc | Co sensor and manufacture thereof |
| JP2004077458A (en) * | 2001-11-14 | 2004-03-11 | Matsushita Electric Ind Co Ltd | Gas sensor and its manufacturing method |
| JP4110961B2 (en) * | 2002-12-24 | 2008-07-02 | 株式会社デンソー | Method for producing gas sensitive membrane for gas sensor |
| CN100405049C (en) * | 2006-04-18 | 2008-07-23 | 云南大学 | Gas sensor made of SnO2 cluster nano-rod |
-
2007
- 2007-06-22 CN CN2007101234393A patent/CN101329293B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949887A (en) * | 2010-08-20 | 2011-01-19 | 郑州炜盛电子科技有限公司 | Semiconductor gas sensor and various gas detection method thereof |
| CN102608170A (en) * | 2011-10-08 | 2012-07-25 | 北京中科微纳物联网技术股份有限公司 | High-performance gas sensor |
| CN104671774A (en) * | 2015-03-06 | 2015-06-03 | 清华大学深圳研究生院 | Anti-Co-interference ethanol sensing material, preparation method and gas sensing element |
| CN104671774B (en) * | 2015-03-06 | 2017-10-31 | 清华大学深圳研究生院 | Anti- CO disturbs ethanol sensing material |
| CN104977320A (en) * | 2015-06-03 | 2015-10-14 | 胡齐放 | Ceramic gas-sensitive sensor for alcohol detection |
| CN105628871A (en) * | 2015-12-28 | 2016-06-01 | 武汉巨正环保科技有限公司 | Ethyl alcohol gas detection system and method |
| CN105929003B (en) * | 2016-04-12 | 2018-06-26 | 吉林大学 | A kind of preparation method of catalysis filter membrane for improving gas sensor selectivity |
| CN110735114A (en) * | 2019-09-30 | 2020-01-31 | 安徽省含山县锦华氧化锌厂 | composition for semiconductor sensor based on zinc oxide doping |
| CN114839231A (en) * | 2022-04-27 | 2022-08-02 | 河南森斯科传感技术有限公司 | Anti-interference gas-sensitive coating for semiconductor combustible gas sensor and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101329293B (en) | 2012-05-23 |
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