Planar ZrO2-based NOx sensor for natural gas combustion processes. Phase 1. Final report, June 12, 1993-January 31, 1994

Technical Report · Thu May 12 00:00:00 EDT 1994

OSTI ID:7028582

Oh, S; Joseph, J; Brodie, I

SRI International has completed the first research phase of a project whose objective is to prove the feasibility of an yttria-stabilized-zirconia (YSZ)-based differential pulse voltammetric (DPV) NOx sensor that has sufficient sensitivity and selectivity for natural gas combustion processes. This phase emphasized the selectivity and resolution in monitoring low NOx concentration in the presence of O2 using the DPV technique. The authors demonstrated that DVP with gold (Au) electrocatalyst discriminates between the NO and O2 reductions and that the NO measurement is not affected by varying the O2 pressure from 0.5% to 5.0%. Using the same catalyst, cyclic voltammetry (CV) did not produce any characteristic peak associated with O2 or NO. They believe that by further optimizing the DPV parameters and selecting a better electrocatalyst, it is feasible to measure a few parts per million of NO in the presence of O2.

• Research Organization: SRI International, Menlo Park, CA (United States)
• OSTI ID: 7028582
• Report Number(s): PB-94-196433/XAB; CNN: GRI-5093-260-2588
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
NATURAL GAS
COMBUSTION
NITROGEN OXIDES
EMISSION
MEASURING INSTRUMENTS
MONITORING
PROGRESS REPORT
ZIRCONIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DOCUMENT TYPES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
NITROGEN COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
030700* - Natural Gas- Waste Management
034000 - Natural Gas- Combustion