Noncatalytic electrodes for solid-electrolyte oxygen sensors

Journal Article · Tue Apr 01 04:00:00 EST 1980 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2129760· OSTI ID:5524376

Haaland, D M

The catalytic effects of various electrode materials on nonequilibrium oxygen measurements using solid-electrolyte oxygen sensors have been investigated. The development of noncatalytic electrodes for the accurate measurement of the free oxygen content in nonequilibrium gas mixtures containing CH/sub 4/, C/sub 3/H/sub 6/, CO, or H/sub 2/ are reported. The effects of Pt, Ag, Au, Ag deposited on Pt, and S- or Pb-poisoned Pt electrodes were tested, and the results are presented here. Much of the data were collected with a new design of solid-electrolyte oxygen sensor which has been previously described. Some of the less catalytic oxygen electrodes were investigated in greater detail, and results of experiments designed to elucidate the reaction mechanisms occurring on these electrodes are presented. These experiments demonstrated the potential power of using solid-electrolyte oxygen sensors for investigating catalytic reaction mechanisms and determining the role poisons play in reducing catalytic activity.

• Research Organization: Sandia Labs., Albuquerque, NM
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5524376
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 127:4; ISSN JESOA
• Country of Publication: United States
• Language: English

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54 ENVIRONMENTAL SCIENCES
ALKANES
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
DETECTION
ELECTRODES
ELEMENTS
GOLD
HYDROCARBONS
HYDROGEN
LEAD
METALS
METHANE
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ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
POISONING
PROPYLENE
SILVER
SULFUR
TRANSITION ELEMENTS