Electrochemical gas sensor for detecting hydrogen cyanide gas
US10816503B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Sep 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0059
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrochemical hydrogen cyanide sensor (1) comprises a housing (10) comprising an opening (2) allowing gas to enter the sensor (1); an electrolyte disposed within the housing (10); a plurality of electrodes in contact with the electrolyte within the housing (10), wherein the plurality of electrodes comprise a working electrode (5) and a counter electrode (7), and wherein the electrodes comprise a metal catalytic material; and a filter (3) operable to cover the opening (2) of the housing (10), and prevent hydrogen sulfide from reaching the electrodes, wherein the filter (3) comprises silver sulfate layered onto a polytetrafluoroethylene support material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.