MULTIPLE CHARGE-TRANSFER REACTIONS IN ZIRCONIA ELECTROLYTIC CELLS: NOx REDUCTION ON PLATINUM.

Article abstract of DOI:10.1149/1.2095959

This paper investigates the electrochemical activity of nitrogen, NO, and NO//2 on platinum paste electrodes in zirconia oxygen sensors. Open-circuit voltages and steady-state current-voltage characteristics were measured at 600 degree -800 degree C as a function of the partial pressures of oxygen, nitrogen, and nitrogen oxides. The open-circuit voltage and the current density both increased monotonically with the NO and NO//2 pressures in the sensor feed stream; both were most sensitive to the NO//2 concentration. These data are well described by a reaction network in which two parallel charge-transfer reactions occur on platinum: oxygen reduction to oxygen dianions; and NO//2 reduction to NO and oxygen dianions.

Full text of DOI:10.1149/1.2095959

Downloaded on 2016-07-06 to IP 132.77.150.148 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2016-07-06 to IP 132.77.150.148 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2016-07-06 to IP 132.77.150.148 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2016-07-06 to IP 132.77.150.148 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2016-07-06 to IP 132.77.150.148 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2016-07-06 to IP 132.77.150.148 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2016-07-06 to IP 132.77.150.148 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).

Downloaded on 2016-07-06 to IP 132.77.150.148 address. Redistribution subject to ECS terms of use (see ecsdl.org/site/terms_use) unless CC License in place (see abstract).