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Electronically conductive perovskite-based oxide nanoparticles and films for optical sensing applications

Patent ·
OSTI ID:1178665
The disclosure relates to a method of detecting a change in a chemical composition by contacting a electronically conducting perovskite-based metal oxide material with a monitored stream, illuminating the electronically conducting perovskite-based metal oxide with incident light, collecting exiting light, monitoring an optical signal based on a comparison of the incident light and the exiting light, and detecting a shift in the optical signal. The electronically conducting perovskite-based metal oxide has a perovskite-based crystal structure and an electronic conductivity of at least 10.sup.-1 S/cm, where parameters are specified at the gas stream temperature. The electronically conducting perovskite-based metal oxide has an empirical formula A.sub.xB.sub.yO.sub.3-.delta., where A is at least a first element at the A-site, B is at least a second element at the B-site, and where 0.8
Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
USDOE
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
9,019,502
Application Number:
14/335,149
OSTI ID:
1178665
Country of Publication:
United States
Language:
English

References (17)

Metal oxides for solid-state gas sensors: What determines our choice? journal April 2007
Multilayer fiber optic sensors for in situ gas monitoring in harsh environments journal February 2013
Acidic ZSM-5 zeolite-coated long period fiber grating for optical sensing of ammonia journal January 2011
Combined effects of small gold particles on the optical gas sensing by transition metal oxide films journal April 1997
Gas sensing properties of a clad modified fiber optic sensor with Ce, Li and Al doped nanocrystalline zinc oxides journal August 2011
Oxygen nonstoichiometry of La1−xSrxCoO3−δ (0 < x ≤ 0.6) journal July 1990
Solvothermal synthesis and properties control of doped ZnO nanoparticles journal January 2009
CO optical sensing properties of nanocrystalline ZnO–Au films: Effect of doping with transition metal ions journal January 2012
Enhanced Photoelectrochemical Activity in All-Oxide Heterojunction Devices Based on Correlated “Metallic” Oxides journal September 2013
Enhanced optical and electrical gas sensing response of sol–gel based NiO–Au and ZnO–Au nanostructured thin films journal March 2012
Proton-Conducting Nanocrystalline Ceramics for High-Temperature Hydrogen Sensing journal January 2014
Doping of SrTiO 3 thin films studied by spectroscopic ellipsometry journal December 2001
Optical gas sensitivity of a metaloxide multilayer system with gold-nano-clusters journal October 2007
Plasmonic transparent conducting metal oxide nanoparticles and nanoparticle films for optical sensing applications journal July 2013
Investigation on nanocrystalline copper-doped zirconia thin films for optical sensing of carbon monoxide at high temperature journal December 2011
Recent advances in optochemical sensors for the detection of H2, O2, O3, CO, CO2 and H2O in air journal November 2006
Terbium doped strontium cerate enabled long period fiber gratings for high temperature sensing of hydrogen journal March 2011