Sensor for electro-active materials
US6836123B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Jul 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sensing device is featured that electrochemically measures methanol concentration. The sensing device has a flexible composite of layered materials wrapped about a flexible tube having aperture contact with a methanol flow stream. The layered materials sequentially wrapped on the tube are: a polytetrafluoroethylene insulation sheet; an electrically conducting mesh representing the anode current collector; a carbon-based material representing an anode diffusion medium; a catalyst-coated membrane with both sides coated by catalysts such as Pt/Ru and Pt; a carbon-based material serving as the cathode diffusion medium; and an electrically conducting mesh representing the cathode current collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.