Nanocomposite thin films for high temperature optical gas sensing of hydrogen
Abstract
The disclosure relates to a plasmon resonance-based method for H.sub.2 sensing in a gas stream at temperatures greater than about 500.degree. C. utilizing a hydrogen sensing material. The hydrogen sensing material is comprised of gold nanoparticles having an average nanoparticle diameter of less than about 100 nanometers dispersed in an inert matrix having a bandgap greater than or equal to 5 eV, and an oxygen ion conductivity less than approximately 10.sup.-7 S/cm at a temperature of 700.degree. C. Exemplary inert matrix materials include SiO.sub.2, Al.sub.2O.sub.3, and Si.sub.3N.sub.4 as well as modifications to modify the effective refractive indices through combinations and/or doping of such materials. At high temperatures, blue shift of the plasmon resonance optical absorption peak indicates the presence of H.sub.2. The method disclosed offers significant advantage over active and reducible matrix materials typically utilized, such as yttria-stabilized zirconia (YSZ) or TiO.sub.2.
- Inventors:
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1083812
- Patent Number(s):
- 8411275
- Application Number:
- 13/443,223
- Assignee:
- U.S. Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Ohodnicki, Jr., Paul R., and Brown, Thomas D. Nanocomposite thin films for high temperature optical gas sensing of hydrogen. United States: N. p., 2013.
Web.
Ohodnicki, Jr., Paul R., & Brown, Thomas D. Nanocomposite thin films for high temperature optical gas sensing of hydrogen. United States.
Ohodnicki, Jr., Paul R., and Brown, Thomas D. Tue .
"Nanocomposite thin films for high temperature optical gas sensing of hydrogen". United States. https://www.osti.gov/servlets/purl/1083812.
@article{osti_1083812,
title = {Nanocomposite thin films for high temperature optical gas sensing of hydrogen},
author = {Ohodnicki, Jr., Paul R. and Brown, Thomas D.},
abstractNote = {The disclosure relates to a plasmon resonance-based method for H.sub.2 sensing in a gas stream at temperatures greater than about 500.degree. C. utilizing a hydrogen sensing material. The hydrogen sensing material is comprised of gold nanoparticles having an average nanoparticle diameter of less than about 100 nanometers dispersed in an inert matrix having a bandgap greater than or equal to 5 eV, and an oxygen ion conductivity less than approximately 10.sup.-7 S/cm at a temperature of 700.degree. C. Exemplary inert matrix materials include SiO.sub.2, Al.sub.2O.sub.3, and Si.sub.3N.sub.4 as well as modifications to modify the effective refractive indices through combinations and/or doping of such materials. At high temperatures, blue shift of the plasmon resonance optical absorption peak indicates the presence of H.sub.2. The method disclosed offers significant advantage over active and reducible matrix materials typically utilized, such as yttria-stabilized zirconia (YSZ) or TiO.sub.2.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 02 00:00:00 EDT 2013},
month = {Tue Apr 02 00:00:00 EDT 2013}
}
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