Electrochemical gas sensor, filter and methods
US10775338B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Jan 9, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to an electrochemical gas sensing apparatus for sensing one or more analytes, such as NO2 and/or O3, in a sample gas and a method of using same. The apparatus uses Mn2O3 as a filter for ozone. The Mn2O3 may take the form of a powder which may be unmixed, mixed with various PTFE particles sizes, formed into a solid layer deposited onto a membrane and/or pretreated with NO2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.