DE3446982C2 - - Google Patents
Info
- Publication number
- DE3446982C2 DE3446982C2 DE3446982A DE3446982A DE3446982C2 DE 3446982 C2 DE3446982 C2 DE 3446982C2 DE 3446982 A DE3446982 A DE 3446982A DE 3446982 A DE3446982 A DE 3446982A DE 3446982 C2 DE3446982 C2 DE 3446982C2
- Authority
- DE
- Germany
- Prior art keywords
- layer
- ceramic material
- catalytic
- alternating layers
- catalytically active
- 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.)
- Expired
Links
- 230000003197 catalytic effect Effects 0.000 claims description 64
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 58
- 229910010293 ceramic material Inorganic materials 0.000 claims description 50
- 238000004804 winding Methods 0.000 claims description 22
- 229910052697 platinum Inorganic materials 0.000 claims description 21
- 239000007864 aqueous solution Substances 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 231100000614 poison Toxicity 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000002574 poison Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 11
- 239000011149 active material Substances 0.000 claims description 11
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 231100000572 poisoning Toxicity 0.000 claims description 8
- 230000000607 poisoning effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 239000003779 heat-resistant material Substances 0.000 claims description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052702 rhenium Inorganic materials 0.000 claims description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 239000010948 rhodium Substances 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 2
- 239000010970 precious metal Substances 0.000 claims 2
- 239000013530 defoamer Substances 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000003381 stabilizer Substances 0.000 claims 1
- 239000004094 surface-active agent Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 86
- 239000002002 slurry Substances 0.000 description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 15
- 239000000919 ceramic Substances 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 150000004687 hexahydrates Chemical class 0.000 description 4
- -1 poly (ethyleneoxy) ethanol Chemical class 0.000 description 4
- LXOFYPKXCSULTL-UHFFFAOYSA-N 2,4,7,9-tetramethyldec-5-yne-4,7-diol Chemical compound CC(C)CC(C)(O)C#CC(C)(O)CC(C)C LXOFYPKXCSULTL-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 241001026509 Kata Species 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000004359 castor oil Substances 0.000 description 2
- 235000019438 castor oil Nutrition 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000629 Rh alloy Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002101 lytic effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical compound [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
- 239000010457 zeolite Substances 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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Catalysts (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/564,982 US4560585A (en) | 1983-12-23 | 1983-12-23 | Poison resistant combustible gas sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3446982A1 DE3446982A1 (de) | 1985-07-11 |
| DE3446982C2 true DE3446982C2 (OSRAM) | 1988-02-25 |
Family
ID=24256712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19843446982 Granted DE3446982A1 (de) | 1983-12-23 | 1984-12-21 | Gegen vergiftung bestaendiges aktives element fuer einen sensor fuer brennbare gase und verfahren zur herstellung des elements |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4560585A (OSRAM) |
| DE (1) | DE3446982A1 (OSRAM) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10008402B4 (de) * | 2000-02-23 | 2007-01-25 | Framatome Anp Gmbh | Verfahren und Einrichtung zur Messung der Wasserstoffkonzentration |
| DE102005038772A1 (de) * | 2005-08-15 | 2007-02-22 | W.C. Heraeus Gmbh | Draht aus oxiddispersionsgehärtetem Pt-lr- und anderen Legierungen mit verbesserter Oberfläche für Zündkerzenelektroden |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5055266A (en) * | 1984-03-02 | 1991-10-08 | Arch Development Corporation | Method for detecting toxic gases |
| DE3704862A1 (de) * | 1987-02-16 | 1988-08-25 | Siemens Ag | Rohrfoermige sonde fuer die gasentnahme aus offenen leitungen |
| GB9301104D0 (en) * | 1993-01-21 | 1993-03-10 | Servomex Plc | Sensor for combustible gases |
| US5494826A (en) * | 1994-04-18 | 1996-02-27 | Gas Research Institute, Inc. | Microcalorimeter sensor for the measurement of heat content of natural gas |
| US5707148A (en) * | 1994-09-23 | 1998-01-13 | Ford Global Technologies, Inc. | Catalytic calorimetric gas sensor |
| US5871820A (en) * | 1995-04-06 | 1999-02-16 | General Electric Company | Protection of thermal barrier coating with an impermeable barrier coating |
| GB2335043B (en) * | 1998-03-04 | 2002-05-22 | Eev Ltd | Gas sensors |
| US20030180445A1 (en) * | 2002-03-21 | 2003-09-25 | Industrial Scientific Corporation | Method for forming a catalytic bead sensor |
| KR101128359B1 (ko) * | 2003-06-12 | 2012-03-23 | 리켄 게이키 가부시키가이샤 | 접촉 연소식 가스센서, 및 그 제조방법 |
| DE102009007279A1 (de) * | 2009-02-03 | 2010-08-19 | Dräger Safety AG & Co. KGaA | Explosionsgeschützter Gassensor ohne druckfeste Kapselung |
| JP5959101B2 (ja) * | 2012-08-02 | 2016-08-02 | 理研計器株式会社 | 水素選択性ガスセンサ |
| JP6678415B2 (ja) * | 2015-09-18 | 2020-04-08 | Ｎｉｓｓｈａ株式会社 | 接触燃焼式ガスセンサ及びその製造方法 |
| US12013363B2 (en) | 2018-12-03 | 2024-06-18 | Carrier Corporation | Combustible gas sensor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3092799A (en) * | 1958-02-18 | 1963-06-04 | Nat Res Dev | Apparatus for detecting combustible gases having an electrically conductive member enveloped in a refractory material |
| US3200011A (en) * | 1959-02-03 | 1965-08-10 | Nat Res Dev | Electrically heatable filaments |
| US3564474A (en) * | 1968-06-04 | 1971-02-16 | Nat Res Dev | Electrically heatable elements |
| US3959764A (en) * | 1974-10-09 | 1976-05-25 | Dictaphone Corporation | Gas analyzing element |
| GB1516039A (en) * | 1976-06-18 | 1978-06-28 | English Electric Valve Co Ltd | Combustible gas detectors |
| GB1549640A (en) * | 1976-07-06 | 1979-08-08 | English Electric Valve Co Ltd | Combustible-gas detectors |
| GB1556339A (en) * | 1977-08-25 | 1979-11-21 | English Electric Valve Co Ltd | Combustible gas detectors |
| GB2096321B (en) * | 1981-04-04 | 1984-05-31 | English Electric Valve Co Ltd | Combustible-gas detectors |
-
1983
- 1983-12-23 US US06/564,982 patent/US4560585A/en not_active Expired - Fee Related
-
1984
- 1984-12-21 DE DE19843446982 patent/DE3446982A1/de active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10008402B4 (de) * | 2000-02-23 | 2007-01-25 | Framatome Anp Gmbh | Verfahren und Einrichtung zur Messung der Wasserstoffkonzentration |
| DE102005038772A1 (de) * | 2005-08-15 | 2007-02-22 | W.C. Heraeus Gmbh | Draht aus oxiddispersionsgehärtetem Pt-lr- und anderen Legierungen mit verbesserter Oberfläche für Zündkerzenelektroden |
| DE102005038772B4 (de) * | 2005-08-15 | 2013-04-18 | Heraeus Materials Technology Gmbh & Co. Kg | Draht aus oxiddispersionsgehärteten Pt-lr- und anderen Legierungen mit verbesserter Oberfläche für Zündkerzenelektroden |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3446982A1 (de) | 1985-07-11 |
| US4560585A (en) | 1985-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |