Carbon monoxide sensor and method of use thereof
US7264778B2 · kind B2 · utility
11Cited by
19References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2003 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Mar 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/205831
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Carbon monoxide sensors suitable for use in hydrogen feed streams and methods of use thereof are disclosed. The sensors are palladium metal/insulator/semiconductor (Pd-MIS) sensors which may possess a gate metal layer having uniform, Type 1, or non-uniform, Type 2, film morphology. Type 1 sensors display an increased sensor response in the presence of carbon monoxide while Type 2 sensors display a decreased response to carbon monoxide. The methods and sensors disclosed herein are particularly suitable for use in proton exchange membrane fuel cells (PEMFCs).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.