Optical methods and systems for detecting a constituent in a gas containing oxygen in harsh environments
- Scotia, NY
- Bronx, NY
A method for detecting a gas phase constituent such as carbon monoxide, nitrogen dioxide, hydrogen, or hydrocarbons in a gas comprising oxygen such as air, includes providing a sensing material or film having a metal embedded in a catalytically active matrix such as gold embedded in a yttria stabilized zirconia (YSZ) matrix. The method may include annealing the sensing material at about 900.degree. C., exposing the sensing material and gas to a temperature above 400.degree. C., projecting light onto the sensing material, and detecting a change in the absorption spectrum of the sensing material due to the exposure of the sensing material to the gas in air at the temperature which causes a chemical reaction in the sensing material compared to the absorption spectrum of the sensing material in the absence of the gas. Systems employing such a method are also disclosed.
- Research Organization:
- The Research Foundation of State University of New York (Albany, NY)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG26-04NT42184
- Assignee:
- The Research Foundation of State University of New York (Albany, NY)
- Patent Number(s):
- 7,864,322
- Application Number:
- 12/293,501
- OSTI ID:
- 1017461
- Country of Publication:
- United States
- Language:
- English
Optical CO sensitivity of Au–CuO composite film by use of the plasmon absorption change
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journal | December 2003 |
High-throughput screening using the surface plasmon resonance effect of colloidal gold nanoparticles
|
journal | January 2001 |
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