BR9800939A - Material para eletrodos - Google Patents
Material para eletrodosInfo
- Publication number
- BR9800939A BR9800939A BR9800939-7A BR9800939A BR9800939A BR 9800939 A BR9800939 A BR 9800939A BR 9800939 A BR9800939 A BR 9800939A BR 9800939 A BR9800939 A BR 9800939A
- Authority
- BR
- Brazil
- Prior art keywords
- sym
- electrodes
- electrode
- peroxide
- materials
- Prior art date
Links
- 239000000463 material Substances 0.000 title abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- 239000007772 electrode material Substances 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 150000001768 cations Chemical class 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 abstract 1
- 238000009472 formulation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 229910052747 lanthanoid Inorganic materials 0.000 abstract 1
- 150000002602 lanthanoids Chemical class 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 150000002978 peroxides Chemical class 0.000 abstract 1
- -1 redoxide ion Chemical class 0.000 abstract 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
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
-
- 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
- G01N27/4075—Composition or fabrication of the electrodes and coatings thereon, e.g. catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Conductive Materials (AREA)
- Compounds Of Iron (AREA)
Abstract
Patente de Invenção:<B>"MATERIAL PARA ELETRODOS"<D>. A presente invenção refere-se a um material para eletrodos para sensores eletroquímicos, em especial para sensores sensíveis a gás de queima. Para tal tipo de utilização são conhecidos materiais para eletrodos do tipo peróxido, os quais conduto por meio de modificação de sua estequiometria de oxigênio, exibem uma mobilidade de suporte de carregamento considerável. Estes defeitos são a causa de uma atividade de catalisação adicional, em processos de oxidação dos eletrodos. A medição de hirocarbonetos de gases de queima com isso é falsificada em tais materiais para eletrodos. No material para eletrodo de acordo com a presente invenção, as desvantagens mencionadas são superadas pelo fato de que são utilizadas misturas de óxido com uma estrutura de cristal não-peróxido, exibindo a composição de acorco com a formulação geral: A~ 3-y~(D) B~ x~ C~ 5-x~ O~ 12~+/-<sym>~ ou D~ 1-y~B~ 1-x~C~ x~O~ 4~+/-<sym>~ ou D~ 2-yB~ 8-xC~ x~O~ 16~+/-<sym>~ ou D~ 2-y~ B~ 1-x~C~ 1-x~O~ 5 +/-<sym> ou D~ 2-y~B~ x~ C~ 2-x~O~ 7 +/-<sym>, onde A e/ou D é um cátion inserido substequiomérico do grupo dos Lantanídeos ou dos Alcalinos Terrosos, B é um íon multivalente e C é um íon redóxi estável.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712315A DE19712315C2 (de) | 1997-03-24 | 1997-03-24 | Brenngassensitives Elektrodenmaterial für elektrochemische Sensoren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9800939A true BR9800939A (pt) | 1999-11-23 |
Family
ID=7824442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9800939-7A BR9800939A (pt) | 1997-03-24 | 1998-03-23 | Material para eletrodos |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5968330A (pt) |
| EP (1) | EP0867714B1 (pt) |
| JP (1) | JPH10274633A (pt) |
| KR (1) | KR19980080556A (pt) |
| BR (1) | BR9800939A (pt) |
| DE (2) | DE19712315C2 (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19901957C2 (de) * | 1999-01-20 | 2003-04-17 | Bosch Gmbh Robert | Sensor zur Analyse von Gasen |
| JP4241993B2 (ja) * | 1999-04-01 | 2009-03-18 | パナソニック株式会社 | 炭化水素センサ |
| DE102005049775A1 (de) * | 2005-10-18 | 2007-04-19 | Robert Bosch Gmbh | Sensor zur Messung der Konzentration einer Gaskomponente in einem Gasgemisch und Verfahren zur Herstellung einer Elektrode eines solchen Sensors |
| US10319999B2 (en) * | 2016-06-20 | 2019-06-11 | Honda Motor Co., Ltd. | Preparation and characterization of modified oxide compositions |
| US10927465B2 (en) * | 2016-11-21 | 2021-02-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Brownmillerite oxides for oxygen evolution catalyst |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5812236B2 (ja) * | 1980-03-14 | 1983-03-07 | 科学技術庁無機材質研究所長 | ホ−ランダイト型構造のチタン酸アルカリ金属単結晶の製造法 |
| EP0062994B1 (en) * | 1981-04-07 | 1985-08-28 | LUCAS INDUSTRIES public limited company | Oxygen sensors |
| US4692429A (en) * | 1984-04-25 | 1987-09-08 | Research Association Of Electric Conductive Inorganic Compounds | Catalyst composition and multi-functional sensor |
| US4562124A (en) * | 1985-01-22 | 1985-12-31 | Westinghouse Electric Corp. | Air electrode material for high temperature electrochemical cells |
| DE3611291A1 (de) * | 1986-04-04 | 1987-10-15 | Dornier System Gmbh | Herstellung von langzeitbestaendigen sauerstoffelektroden fuer elektrolysezellen mit festelektrolyt |
| US4885078A (en) * | 1988-12-07 | 1989-12-05 | Westinghouse Electric Corp. | Devices capable of removing silicon and aluminum from gaseous atmospheres |
| US5616223A (en) * | 1992-05-11 | 1997-04-01 | Gas Research Institute | Mixed ionic-electronic conducting composites for oxygen separation and electrocatalysis |
| US5863503A (en) * | 1993-06-30 | 1999-01-26 | Osaka Gas Co., Ltd. | Nitrogen oxide detecting sensor and method of manufacturing the same |
-
1997
- 1997-03-24 DE DE19712315A patent/DE19712315C2/de not_active Expired - Fee Related
-
1998
- 1998-01-09 EP EP98100243A patent/EP0867714B1/de not_active Expired - Lifetime
- 1998-01-09 DE DE59813503T patent/DE59813503D1/de not_active Expired - Lifetime
- 1998-03-23 JP JP10092257A patent/JPH10274633A/ja not_active Withdrawn
- 1998-03-23 US US09/046,167 patent/US5968330A/en not_active Expired - Fee Related
- 1998-03-23 KR KR1019980009935A patent/KR19980080556A/ko not_active Withdrawn
- 1998-03-23 BR BR9800939-7A patent/BR9800939A/pt not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE59813503D1 (de) | 2006-06-01 |
| DE19712315A1 (de) | 1998-10-01 |
| US5968330A (en) | 1999-10-19 |
| KR19980080556A (ko) | 1998-11-25 |
| EP0867714B1 (de) | 2006-04-26 |
| JPH10274633A (ja) | 1998-10-13 |
| EP0867714A2 (de) | 1998-09-30 |
| DE19712315C2 (de) | 1999-02-04 |
| EP0867714A3 (de) | 2000-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA10 | Dismissal: dismissal - article 33 of industrial property law | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |