Limiting-current type gas sensor, fabrication method of the limiting-current type gas sensor and sensor network system
US-2015377823-A1 · Dec 31, 2015 · US
Sensor material and gas sensor element and gas sensor derived therefrom
US2016169831A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016169831-A1 |
| Application number | US-201414565896-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 10, 2014 |
| Priority date | Dec 10, 2014 |
| Publication date | Jun 16, 2016 |
| Grant date | — |
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Abstract
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An NO 2 sensor comprises a sensing electrode material that includes a compound consisting essentially of one or more elements selected from the group consisting of Mn, Co, and Fe; an element selected from the group consisting of Si and Ti; and oxygen. In an alternate embodiment, the sensing electrode material includes a compound consisting essentially of one or more elements selected from the group consisting of Mn, Co, and Fe; an element selected from the group consisting of Si and Ti; an element selected from the group consisting of Mg, Al, Li, Na, and K; and oxygen. Sensors made with these sensing electrode materials demonstrate good NO 2 sensitivity and reduced sensitivity to cross-interference from NO and NH 3 .
First claim
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What is claimed is: 1 . An NO 2 sensor comprising a sensing electrode comprising a sensor material; said sensor material comprising a compound consisting essentially of one or more elements selected from the group consisting of Mn, Co, and Fe; an element selected from the group consisting of Si and Ti; and oxygen. 2 . The NO 2 sensor according to claim 1 wherein the sensor material is in contact with an electrolyte having a reference electrode in contact therewith. 3 . The NO 2 sensor according to claim 2 wherein the reference electrode comprises Pt, Pd, Rh, Ir, Ru or Au. 4 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises MnSiO 3 . 5 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises Mn 2 SiO 4 . 6 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises Mn 1.7 SiO 3.7 . 7 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises Co 2 SiO 4 . 8 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises CoTi 2 O 5 . 9 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises CoMnSiO 4 . 10 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises Fe 2 SiO 4 . 11 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises MnTiO 3 . 12 . The NO 2 sensor according to claim 1 , wherein the sensor material comprises Fe 2 TiO 4 . 13 . An NO 2 sensor comprising a sensing electrode comprising a sensor material; said sensor material comprising a compound consisting essentially of one or more elements selected from the group consisting of Mn, Co, and Fe; an element selected from the group consisting of Si and Ti; an element selected from the group consisting of Mg, Al, Li, Na, and K; and oxygen. 14 . The NO 2 sensor according to claim 13 wherein the sensor material is in contact with an electrolyte having a reference electrode in contact therewith. 15 . The NO 2 sensor according to claim 14 wherein the reference electrode comprises Pt, Pd, Rh, Ir, Ru or Au. 16 . The NO 2 sensor according to claim 13 , wherein the sensor material comprises MnMgSiO 4 . 17 . The NO 2 sensor according to claim 13 , wherein the sensor material comprises Mn 1.88 K 0.07 Fe 0.06 SiO 4 . 18 . The NO 2 sensor according to claim 13 , wherein the sensor material comprises Mn 1.8 Al 0.19 SiO 4 .
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Classifications
- G01N27/4075Primary
Composition or fabrication of the electrodes and coatings thereon, e.g. catalysts · CPC title
Reference electrodes or reference mixtures · CPC title
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- What does patent US2016169831A1 cover?
- An NO 2 sensor comprises a sensing electrode material that includes a compound consisting essentially of one or more elements selected from the group consisting of Mn, Co, and Fe; an element selected from the group consisting of Si and Ti; and oxygen. In an alternate embodiment, the sensing electrode material includes a compound consisting essentially of one or more elements selected from the …
- Who is the assignee on this patent?
- Delphi Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification G01N27/4075. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jun 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).