CN1195403A - 测定混合气中可氧化组分浓度的传感器 - Google Patents
测定混合气中可氧化组分浓度的传感器 Download PDFInfo
- Publication number
- CN1195403A CN1195403A CN97190685A CN97190685A CN1195403A CN 1195403 A CN1195403 A CN 1195403A CN 97190685 A CN97190685 A CN 97190685A CN 97190685 A CN97190685 A CN 97190685A CN 1195403 A CN1195403 A CN 1195403A
- Authority
- CN
- China
- Prior art keywords
- sensor
- semiconductor
- electrode
- acceptor
- concentration
- Prior art date
- 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.)
- Pending
Links
- 150000001875 compounds Chemical class 0.000 title abstract 2
- 239000004065 semiconductor Substances 0.000 claims abstract description 14
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims abstract description 5
- 239000007784 solid electrolyte Substances 0.000 claims description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 229910052758 niobium Inorganic materials 0.000 claims description 8
- 239000010955 niobium Substances 0.000 claims description 8
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical group [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 239000006104 solid solution Substances 0.000 claims description 2
- 239000008246 gaseous mixture Substances 0.000 claims 2
- 238000002955 isolation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 32
- 239000000463 material Substances 0.000 abstract description 2
- 239000003792 electrolyte Substances 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052697 platinum Inorganic materials 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011088 calibration curve Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000036647 reaction Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010013710 Drug interaction Diseases 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- NQKXFODBPINZFK-UHFFFAOYSA-N dioxotantalum Chemical compound O=[Ta]=O NQKXFODBPINZFK-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- -1 oxygen ions Chemical class 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000005676 thermoelectric effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical group 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4073—Composition or fabrication of the solid electrolyte
- G01N27/4074—Composition or fabrication of the solid electrolyte for detection of gases other than oxygen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4071—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
建议了一种传感器用来测定气体混合物中可氧化组分的浓度,特别是测定NOx、CO、H2以及特别是不饱和烃中的一种或多种气体。通过测量测量电极(1,2)和参比电极(3)之间的电压或通过测量两个测量电极[(1)和(2)]之间的电压来实现测定。对单个测量气体组分的选择性可以通过选择测量电极材料,特别是通过加入半导体来改善。用了多孔固体电解质后可以放弃参考气氛围,因而实现了很高的微型化并简化了结构。
Description
本发明涉及一种测定混合气中可氧化组分浓度的传感器,特别是测定独立权利要求中列出的NOx、CO、H2和不饱和烃中的一种或多种气体。例如因为喷射阀之类的设备故障或燃烧不完全,内燃机和燃烧设备的汽油发动机和柴油发动机的废气中可出现高浓度的可氧化组分,特别是NOx、CO、H2和烃。为优化燃烧反应有必要了解此废气组分的浓度。在JP OS 60-61654中叙述了一种测定可氧化气体的方法,按此法在第一个铂测量电极上按化学计量完成和氧的反应,而在另一个或其他多个金属测量电极上因对氧平衡反应具有还原催化活性,而建立起准平衡状态。量测在测量电极和参比电极之间的能斯特电压E1和E2,然后从它们之间差值根据标定曲线计算出气体组分浓度,在参比电极上提供了具有恒定氧分压的参考气体。
具有独立权利要求所述特点的本发明的传感器具有改进分析功能的特点,特别是对单个被测气体组分具有更高的灵敏度和选择性。
通过在附属权利要求中提出的措施有可能使独立权利要求中所述的传感器得到有利的提高和改善。
测量电极的灵敏度和选择性是通过添加含有受体和/或给体的特殊的氧化物半导体或混合氧化物半导体而得以改善的。
与加入受体相比,加入给体、特别是高浓度的给体将改善测量电极的导电能力。如果选择过渡系金属和/或稀土作为受体(Akzeptor)和/或以元素钽和铌之一或二者同时作为给体(Donator)将得到性能特别高的电极。为达到高度微型化、结构简易和制造成本低廉的目标,将固体电解质烧结成多孔性的。由此可以取消引入参考气体,这就大大地简化了传感器结构。
通过选择一种有催化效能的固体电解质材料可以有利地甚至在固体电解质中就已建立起热力学平衡。作为特别的优点应看到这样做的目的是将影响参考信号的干涉气体氧化掉,况且只有这样才有可能使信号处理得以简化。
不光是固体电解质,还可以有目的地使测量电极也做成多孔的。这样将进一步改善测量气的分子向参比电极扩散。在电极周围区域内有相当于电极材料的添加剂与固体电解质混在一起,这就改善了电极的附着力从而改善了传感器的使用寿命。
下面通过附图和实施例详细说明本发明,其中,图1是按本发明的传感器的剖面图。
图1显示了按本发明的传感器的剖面图。绝缘性平面状陶瓷底物6在其主平面上相互重叠地装有比如铂制成的参比电极3、固体电解质5、测量电极1和2以及通气的保护层4。在底物的另一侧主平面装带有盖8的加热设备7。
为测定废气中可氧化组分浓度,此传感器籍助于加热设备7加热到300和1000℃之间,优选加热到600℃。为了使测量气体能扩散到参比电极并建立起氧平衡电势,固体电解质可以是多孔烧结的,但是专业人员也可以选择其他他们熟悉的方案,比如通过参考通道或是参考气氛围。
经由传导氧离子的固体电解质,通过在参比电极的辅助下建立起来的第一个半电池反应,以及在至少一个测量电极上受被测的可氧化气体组分影响的第二个半电池反应,传感器产生一个电池电压。通过标定曲线由电压值可求得气体组分浓度。
按本发明的传感器在最简单的场合下可装有一个参比电极和一个测量电极,所述参比电极能催化气体混合物建立平衡,而所述测量电极不能或只能少量地催化气体混合物。
如图1所示,也可引入两个测量电极,或引入多个测量电极,各电极对氧平衡态的建立分别有不同的催化活性。测量电极反应得到的与气体类型有关的不同的电压,此电压是以参比电极为基准的。
为安排两个或多个有不同催化活性的测量电极时,存在以测量电极之间的电压计算出可氧化气体的可能性。在电极之间作电压测量时,如图1中的电极1和电极2,它们被安排在同一平面上与加热设备保持相同距离,以消除热电效应。安排至少两个测电极时存在另外一种可能性,即相应地调整一个测量电极对干扰气体组分的灵敏度,由此使该测量电极的信号全部或至少局部地补偿另一个测量电极的交叉灵敏度(Querempfindlichkeit)。
在另一种实施方式中,这样形成固体电解质,比如加入0.01到10体积%铂,使固体电解质催化转化被测气体,使处于热力学平衡的气体只能达到参比电极,或者此固体电解质只转化对参考信号有干扰的气体。
按另一个变化方案,除固体电解质外另再形成一个或多个多孔性测量电极,以加快气体向参比电极的扩散。
采用半导体作为测量电极材料,它对所测的可氧化气体有高的特有的灵敏度。特别适宜的是氧化物或混合氧化物,特别是能掺入受体和/或给体的金红石基或双金红石基(Dirutilbasis)或混合基的氧化物。有利的是用二氧化钛和/或二氧化锆。
适宜的给体是钽和铌,优选比构成半导体的金属的价态要高的元素;适宜的受体是过渡金属,特别是镍、铜、钴和/或铬,优选镍、铜和/或钴,以及稀土金属。此时受体可以以固溶体或以离集组分(Seggregierter Bestandteil)形式包含在半导体中。
受体和给体浓度各为0.01到25%,含量较低时,达不到测量电极的特性改善,含量较高时会出现结构缺陷。
由于不饱和烃的π键轨道和半导体表面上的亲电子受体穴位(Akzeptorpltzen)发生吸附相互作用(adsorptive Wechselwirkung),所以比如加了受体和给体的二氧化钽,特别对不饱和烃具有高的灵敏度。
为了使能减少导电率的受体份额不能全部起到电的作用,优选的是在电极中掺入能提高导电率的给体,最好其浓度要高于受体。
下面的实施例说明了按本发明的传感器的一种制备方法。加入7%铌和3%过渡金属镍、铜或铁的金红石以30微米厚的丝网印刷层,印刷在底物上,再载上比如铂制的参比电极,其上再载上固体电解质层。在底物的反面安装加热设备。用加热/冷却台将此传感器以300℃/小时速度升温,在1200℃下烧结90分钟。经过烧结后固体电解质的孔径范围为10纳米到100微米。借助于与固体电解质隔开设置并只和测量电极相接的铂导线后,这样构成的电池有1兆欧的内阻,在其上测量在参比电极和金红石电极之间的电压。传感器用它的加热设备加热到600℃。
用10%氧、5%水和5%二氧化碳以及30ppm二氧化硫的模拟废气作为测量气。可氧化气按表中所述的量进行混合。
作为比较,在下表的最后一项中给出了20%金和80%铂的混合电位电极(Mischpotentialelektrode)的电压值,它用的是目前技术的测量电极。
表:电压值(毫伏)与可氧化气浓度和测量电极的关系
电压(毫伏)金红石电极比较电极有7%铌和3%的 镍 铜 铁 20%金和80%铂可氧化气(ppm)丙烷 460 150 45 60 320
180 120 36 47 280
90 90 27 35 180氢 460 30 12 20 500
180 17 6 10 450
90 5 3 4 380一氧化碳 460 40 3 16 70
180 15 / 7 35
90 7 / 6 23
由此表可见用7%铌作给体、3%镍作受体的金红石半导体电极在丙烯作传导物质时(Leitsubstanz)显示了大的选择性。目前水平的已知的金-铂系统却显示出特别高的氢交叉灵敏度(Wasserstoffquerempfindlichkeit)。
Claims (12)
1.用于测定气体混合物中可氧化组分浓度,特别是测定NOx、CO、H2和优选的不饱和烃中的一种或多种组分的传感器,其中,在一个平面电绝缘底物(6)的主平面上相互重叠地装上一个能催化气体混合物至平衡的参比电极(3),一个能传导离子的固体电解质(5)和至少一个与测量气相通的测量电极(1,2),此测量电极不能或只能很少地将气体混合物催化至平衡,此传感器的特征在于:作为主要元件的测量电极(1,2)中含有一个或多个半导体。
2.如权利要求1的传感器,其特征在于:固体电解质(5)上安排了二个相互有一定距离的测量电极(1,2)。
3.如权利要求1或2的传感器,其特征在于:半导体中加入了受体和/或给体。
4.如权利要求1至3的传感器,其特征在于:此半导体是氧化物或是单相或多相的混合氧化物,特别是金红石或双金红石或是其混合物。
5.如权利要求4的传感器,其特征在于:此半导体由二氧化钛组成。
6.如权利要求3至5的传感器,其特征在于:给体的浓度高于受体的浓度。
7.如权利要求3至6的传感器,其特征在于:给体元素的价态要高于构成半导体的金属的价态。
8.如权利要求7的传感器,其特征在于:给体是钽和/或铌。
9.如权利要求3至8的传感器,其特征在于:半导体含有一种或多种过渡元素作为受体,特别是镍、铜、钴和/或铬,优选镍、铜和/或钴和/或稀土。
10.如权利要求9的传感器,其特征在于:受体以固溶体形式或离集组分形式包含在半导体中。
11.如权利要求3至10的传感器,其特征在于:半导体含有浓度分别为0.01至25%的给体和/或受体。
12.如权利要求11的传感器,其特征在于:半导体含有0.5至15%铌和0.25%至7%镍,优选7%铌和3%镍。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19623434A DE19623434A1 (de) | 1996-06-12 | 1996-06-12 | Sensor zur Bestimmung der Konzentration oxidierbarer Bestandteile in einem Gasgemisch |
DE19623434.4 | 1996-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1195403A true CN1195403A (zh) | 1998-10-07 |
Family
ID=7796739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97190685A Pending CN1195403A (zh) | 1996-06-12 | 1997-05-16 | 测定混合气中可氧化组分浓度的传感器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6022464A (zh) |
EP (1) | EP0843813A1 (zh) |
JP (1) | JP4162262B2 (zh) |
KR (1) | KR19990036337A (zh) |
CN (1) | CN1195403A (zh) |
DE (1) | DE19623434A1 (zh) |
WO (1) | WO1997047963A1 (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1293378C (zh) * | 2001-01-08 | 2007-01-03 | 阿勒瓦T&D股份有限公司 | 非干扰监测具有至少两种组分的气体混合物的混合比率的方法 |
CN100432662C (zh) * | 2004-10-29 | 2008-11-12 | Tdk株式会社 | 二氧化碳传感器 |
CN100465636C (zh) * | 2003-03-13 | 2009-03-04 | 罗伯特·博施有限公司 | 确定混合气中气体组分浓度的、非加热的平面传感元件 |
CN104374818A (zh) * | 2014-08-08 | 2015-02-25 | 杭州纳瑙新材料科技有限公司 | 一种平面型氧传感器 |
CN109991284A (zh) * | 2011-07-15 | 2019-07-09 | 斯沃奇集团研究和开发有限公司 | 具有活性层的氢气传感器和生产氢气传感器的方法 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19623212A1 (de) * | 1996-06-11 | 1997-12-18 | Bosch Gmbh Robert | Sensor zur Bestimmung der Konzentration oxidierbarer Bestandteile in einem Gasgemisch |
DE19846487C5 (de) * | 1998-10-09 | 2004-12-30 | Basf Ag | Meßsonde für die Detektion der Momentankonzentrationen mehrerer Gasbestandteile eines Gases |
DE19932048A1 (de) * | 1999-07-09 | 2001-01-11 | Bosch Gmbh Robert | Meßfühler zur Bestimmung einer Konzentration von Gaskomponenten in Gasgemischen |
DE19944181A1 (de) | 1999-09-15 | 2001-04-12 | Bosch Gmbh Robert | Sensor zur Bestimmung der Konzentration von Gaskomponenten in Gasgemischen |
US6849239B2 (en) * | 2000-10-16 | 2005-02-01 | E. I. Du Pont De Nemours And Company | Method and apparatus for analyzing mixtures of gases |
DE102005015569A1 (de) * | 2005-04-05 | 2006-10-12 | Robert Bosch Gmbh | Keramisches Widerstands- oder Sensorelement |
US20080110769A1 (en) * | 2006-11-09 | 2008-05-15 | Delphi Technologies Inc. | Exhaust gas sensors and methods for measuring concentrations of nox and ammonia and temperatures of the sensors |
KR20110000647A (ko) * | 2008-02-28 | 2011-01-04 | 넥스테크 머티리얼스, 엘티디. | 전류측정 전기화학 전지 및 센서 |
JP4996527B2 (ja) * | 2008-04-14 | 2012-08-08 | 日本特殊陶業株式会社 | 積層型ガスセンサ素子及びガスセンサ |
WO2010038989A2 (ko) * | 2008-09-30 | 2010-04-08 | 일진소재산업(주) | 질소산화물 가스센서 |
JP2012504235A (ja) * | 2008-09-30 | 2012-02-16 | イルジン カッパー ホイル カンパニー リミテッド | 長期信号安定性を有する窒素酸化物ガスセンサー |
US8974657B2 (en) | 2010-09-03 | 2015-03-10 | Nextech Materials Ltd. | Amperometric electrochemical cells and sensors |
JP6251200B2 (ja) | 2012-03-08 | 2017-12-20 | ネクステック、マテリアルズ、リミテッドNextech Materials, Ltd. | 検知電極が少なくとも1つのタングステートまたはモリブデート化合物を含むアンペロメトリック固体電解質ガスセンサおよび検出方法 |
KR101769303B1 (ko) * | 2016-06-14 | 2017-08-18 | 현대자동차주식회사 | 고체전해질용 co2 센서 및 이의 제조방법 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2304464C2 (de) * | 1973-01-31 | 1983-03-10 | Robert Bosch Gmbh, 7000 Stuttgart | Meßfühler für die Überwachung der Funktionsfähigkeit von Katalysatoren in Abgas |
DE3004571A1 (de) * | 1980-02-07 | 1981-08-13 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen | Feste elektrode in einer elektrolytischen zelle |
JPS6061654A (ja) * | 1983-09-14 | 1985-04-09 | Ngk Insulators Ltd | 酸素・可燃ガス分圧測定方法及び装置 |
US5037525A (en) * | 1985-10-29 | 1991-08-06 | Commonwealth Scientific And Industrial Research Organisation | Composite electrodes for use in solid electrolyte devices |
DE3610364A1 (de) * | 1986-03-27 | 1987-10-01 | Kernforschungsz Karlsruhe | Verfahren zum verringern des no(pfeil abwaerts)x(pfeil abwaerts)-gehaltes in gasen, bei welchem dem gaststrom kontinuierlich nh(pfeil abwaerts)3(pfeil abwaerts) zugesetzt wird |
US4879016A (en) * | 1986-07-25 | 1989-11-07 | Ceramatec, Inc. | Electrolyte assembly for oxygen generating device and electrodes therefor |
US4931213A (en) * | 1987-01-23 | 1990-06-05 | Cass Richard B | Electrically-conductive titanium suboxides |
EP0369238B1 (en) * | 1988-11-01 | 1996-09-04 | Ngk Spark Plug Co., Ltd | Oxygen sensor and method for producing same |
JP2514701B2 (ja) * | 1988-12-02 | 1996-07-10 | 日本特殊陶業株式会社 | 酸素センサ |
DE4021929C2 (de) * | 1990-07-10 | 1998-04-30 | Abb Patent Gmbh | Sensor |
US5480535A (en) * | 1992-12-28 | 1996-01-02 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Thin film multilayered air/fuel ratio sensor |
JPH06235715A (ja) * | 1993-02-10 | 1994-08-23 | Toyota Motor Corp | 酸素濃度センサ |
DE4311851A1 (de) * | 1993-04-10 | 1994-10-13 | Bosch Gmbh Robert | Sensoranordnung zur Bestimmung von Gaskomponenten und/oder von Gaskonzentrationen von Gasgemischen |
DE4408361C2 (de) * | 1994-03-14 | 1996-02-01 | Bosch Gmbh Robert | Elektrochemischer Sensor zur Bestimmung der Sauerstoffkonzentration in Gasgemischen |
DE4408504A1 (de) * | 1994-03-14 | 1995-09-21 | Bosch Gmbh Robert | Sensor zur Bestimmung der Konzentration von Gaskomponenten in Gasgemischen |
-
1996
- 1996-06-12 DE DE19623434A patent/DE19623434A1/de not_active Ceased
-
1997
- 1997-05-16 CN CN97190685A patent/CN1195403A/zh active Pending
- 1997-05-16 WO PCT/DE1997/000996 patent/WO1997047963A1/de not_active Application Discontinuation
- 1997-05-16 US US09/011,577 patent/US6022464A/en not_active Expired - Lifetime
- 1997-05-16 JP JP50103698A patent/JP4162262B2/ja not_active Expired - Fee Related
- 1997-05-16 EP EP97923831A patent/EP0843813A1/de not_active Withdrawn
- 1997-05-16 KR KR1019980701005A patent/KR19990036337A/ko not_active Application Discontinuation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1293378C (zh) * | 2001-01-08 | 2007-01-03 | 阿勒瓦T&D股份有限公司 | 非干扰监测具有至少两种组分的气体混合物的混合比率的方法 |
CN100465636C (zh) * | 2003-03-13 | 2009-03-04 | 罗伯特·博施有限公司 | 确定混合气中气体组分浓度的、非加热的平面传感元件 |
CN100432662C (zh) * | 2004-10-29 | 2008-11-12 | Tdk株式会社 | 二氧化碳传感器 |
CN109991284A (zh) * | 2011-07-15 | 2019-07-09 | 斯沃奇集团研究和开发有限公司 | 具有活性层的氢气传感器和生产氢气传感器的方法 |
CN104374818A (zh) * | 2014-08-08 | 2015-02-25 | 杭州纳瑙新材料科技有限公司 | 一种平面型氧传感器 |
Also Published As
Publication number | Publication date |
---|---|
JP4162262B2 (ja) | 2008-10-08 |
WO1997047963A1 (de) | 1997-12-18 |
EP0843813A1 (de) | 1998-05-27 |
US6022464A (en) | 2000-02-08 |
DE19623434A1 (de) | 1997-12-18 |
JPH11510908A (ja) | 1999-09-21 |
KR19990036337A (ko) | 1999-05-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1195403A (zh) | 测定混合气中可氧化组分浓度的传感器 | |
US6787014B2 (en) | Gas-detecting element and gas-detecting device comprising same | |
Brosha et al. | Development of ceramic mixed potential sensors for automotive applications | |
JP3553073B2 (ja) | 混合気中のガス成分の濃度を測定するためのセンサ | |
Moos et al. | Temperature-independent resistive oxygen exhaust gas sensor for lean-burn engines in thick-film technology | |
US4298573A (en) | Device for detection of oxygen concentration in combustion gas | |
JP3488591B2 (ja) | 酸化物センサ | |
US5667652A (en) | Multi-functional sensor for combustion systems | |
CN1221490A (zh) | 测定混合气体中可氧化组份浓度的传感器 | |
US6051123A (en) | Multi-functional and NOx sensor for combustion systems | |
US6303011B1 (en) | Gas sensor | |
US6514397B2 (en) | Gas sensor | |
EP0310063B1 (en) | Sensor for measurement of air/fuel ratio | |
US9823216B2 (en) | Sensor material and gas sensor element and gas sensor derived therefrom | |
EP1430295B1 (en) | Solid state potentiometric gaseous oxide sensor | |
US20100084269A1 (en) | Sensor Material and Gas Sensor Element and Gas Sensor Derived Therefrom | |
US6153072A (en) | Gas sensor, gas sensor system using the same, and method of manufacturing a gas sensor | |
US6635162B2 (en) | Gas sensor | |
US20030121800A1 (en) | Sensor element of a gas sensor for determining gas components | |
CN1285914A (zh) | 用于检测氮的氧化物的金属氧化物传感器 | |
Elumalai et al. | Dependence of NO 2 sensitivity on thickness of oxide-sensing electrodes for mixed-potential-type sensor using stabilized zirconia | |
Dutta et al. | Amperometric hydrocarbon sensor using La (Sr) Ga (Fe) O3 solid electrolyte for monitoring in exhaust gas | |
US6379514B1 (en) | Composition structure for NOx sensors | |
JPH11148910A (ja) | 排出ガス濃度検出方法及びその装置 | |
US6650121B2 (en) | Sensor for the monitoring of an NOx catalyst |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |