GB1499651A - Electrochemical cells - Google Patents
Electrochemical cellsInfo
- Publication number
- GB1499651A GB1499651A GB4756975A GB4756975A GB1499651A GB 1499651 A GB1499651 A GB 1499651A GB 4756975 A GB4756975 A GB 4756975A GB 4756975 A GB4756975 A GB 4756975A GB 1499651 A GB1499651 A GB 1499651A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- electrodes
- carbon
- electrolyte
- gas
- 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
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
- G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
- G01N27/4045—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors for gases other than oxygen
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)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
1499651 Sulphur dioxide sensor DRAGERWERK AG 18 Nov 1975 [.18 Nov 1974] 47569/75 Heading G1N An electro-chemical sensor for determining sulphur dioxide (preferably in the presence of oxygen) comprises two electrodes, both contacting an electrolyte, the first electrode comprising carbon where it contacts the gas and the second electrode, when the electrodes are connected to a device for measuring current between them being substantially non polarized in operation and having a potential more positive than that of the first electrode. The first electrode carbon is preferably artificial graphite of surface area 1-20 m<SP>2</SP>/g. The second electrode may comprise platinum or a reversible redox system using an acid-insoluble organic species such as a quinone; chlorinated and/or condensed diphenoquinones being preferred. The electrodes may be rendered hydrophobic on the side which contacts the gas by, for example polytetrafluoroethylene. The electrolyte is a strong acid such as perchloric, phosphoric or sulphuric. It may be immobilized in, for example, micronized silica. As shown, carbon first electrode 3 and platinum second electrode 4 are electrically connected by current measuring device 5 and contain electrolyte 2 between them. A gas mixture 6 flows past the cell as shown by natural convection.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742454659 DE2454659C3 (en) | 1974-11-18 | 1974-11-18 | Measuring cell for determining the sulfur dioxide content in gas mixtures |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1499651A true GB1499651A (en) | 1978-02-01 |
Family
ID=5931150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4756975A Expired GB1499651A (en) | 1974-11-18 | 1975-11-18 | Electrochemical cells |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE834838A (en) |
DE (1) | DE2454659C3 (en) |
FR (1) | FR2291493A1 (en) |
GB (1) | GB1499651A (en) |
NL (1) | NL7511657A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2140566A (en) * | 1983-05-26 | 1984-11-28 | Teledyne Ind | Powdered liquid electrolyte |
GB2201787A (en) * | 1987-03-02 | 1988-09-07 | Atomic Energy Authority Uk | Gas sensor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1119249A (en) * | 1979-03-30 | 1982-03-02 | Ireq Institut De Recherche De L'hydro-Quebec | Method and apparatus for mesuring a gaseous anhydride in a gas containing oxygen |
DE3033796A1 (en) * | 1980-09-09 | 1982-04-22 | Bayer Ag, 5090 Leverkusen | ELECTROCHEMICAL SENSOR FOR DETECTING REDUCING GASES, ESPECIALLY CARBON MONOXIDE, HYDRAZINE AND HYDROGEN IN AIR |
DE3108889A1 (en) * | 1981-03-09 | 1982-09-16 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | ELECTROCHEMICAL GAS ANALYZER |
DE3923717A1 (en) * | 1989-07-18 | 1991-01-24 | Draegerwerk Ag | ELECTROCHEMICAL MEASURING CELL FOR DETECTING BLUE ACID OR SULFUR DIOXIDE |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3686091A (en) * | 1970-10-02 | 1972-08-22 | Beckman Instruments Inc | Electrochemical cell |
DE2240350B2 (en) * | 1972-08-17 | 1974-07-18 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Device for determining the carbon monoxide content in gases and gas mixtures |
-
1974
- 1974-11-18 DE DE19742454659 patent/DE2454659C3/en not_active Expired
-
1975
- 1975-10-03 NL NL7511657A patent/NL7511657A/en not_active Application Discontinuation
- 1975-10-24 BE BE161222A patent/BE834838A/en unknown
- 1975-10-24 FR FR7532627A patent/FR2291493A1/en not_active Withdrawn
- 1975-11-18 GB GB4756975A patent/GB1499651A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2140566A (en) * | 1983-05-26 | 1984-11-28 | Teledyne Ind | Powdered liquid electrolyte |
GB2201787A (en) * | 1987-03-02 | 1988-09-07 | Atomic Energy Authority Uk | Gas sensor |
EP0281247A2 (en) * | 1987-03-02 | 1988-09-07 | United Kingdom Atomic Energy Authority | Gas sensors |
EP0281247A3 (en) * | 1987-03-02 | 1990-05-09 | United Kingdom Atomic Energy Authority | Gas sensors |
GB2201787B (en) * | 1987-03-02 | 1991-11-13 | Atomic Energy Authority Uk | Sensors |
Also Published As
Publication number | Publication date |
---|---|
FR2291493A1 (en) | 1976-06-11 |
BE834838A (en) | 1976-02-16 |
DE2454659B2 (en) | 1980-09-25 |
DE2454659C3 (en) | 1981-06-11 |
NL7511657A (en) | 1976-05-20 |
DE2454659A1 (en) | 1976-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |