Electrocatalytic reactivity of hydrocarbons on a zirconia electrolyte surface

Journal Article · Mon Sep 01 04:00:00 EDT 1986 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2109027· OSTI ID:7143671

Nguyen, B C; Lin, T A; Mason, D M

An experimental survey of the electrochemical reactivity of five common fuel species was made employing a solid oxide electrolyte galvanic cell with porous Au and Pt electrodes in the temperature range 700/sup 0/-850/sup 0/C. The electrolyte used was Sc/sub 2/O/sub 3/-stabilized ZrO/sub 2/(SSZ). The fuel species electro-oxidized at the anode were: H/sub 2/ CO, CH/sub 4/, CH/sub 3/OH, and C/sub 2/H/sub 5/OH. Rates of reaction were determined coulometrically so that species other than H/sub 2/ could have undergone an undetermined amount of thermal dissociation during electro-oxidation. The concomitant reactivity of O/sub 2/, which is reduced at the cathode, was also investigated. The current-overpotential behavior at both the cathode and anode was found to be similar whether Au or Pt was used to form the porous electrodes. In the low overpotential range, the rate of charge transfer is found to be rate determining for both the cathodic and anodic reactions.

• Research Organization: Dept. of Chemical Engineering, Stanford Univ., Stanford, CA 94305
• OSTI ID: 7143671
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 133:9; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ACTIVATION ENERGY
ALCOHOLS
ALKANES
ANODES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATHODES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
ELECTROCATALYSTS
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
ELEMENTS
ENERGY
ETHANOL
GOLD
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
HYDROXY COMPOUNDS
METALS
METHANE
METHANOL
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
SCANDIUM COMPOUNDS
SCANDIUM OXIDES
SOLID ELECTROLYTES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VERY HIGH TEMPERATURE
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES