The kinetics of the O2/CO2 reaction in molten carbonate - Reaction orders for O2 and CO2 on NiOThe kinetics of the O2/CO2 reaction in molten carbonate is investigated using paste electrolytes and nickel sinter electrodes. A two-step approach to the determination of reaction orders is employed. First, exchange currents at various P(CO2) and P(O2) were measured using the low polarization method. Second, alpha(+) and alpha(-) values were obtained from the slope of the Allen-Hickling plot for current densities low enough so that concentration polarization within the electrode can be neglected. The reaction orders are + 1/4 in CO2 and + 5/8 in O2 in the cathodic direction, and - 3/4 in CO2 and + 1/8 in O2 in the anodic direction.
Document ID
19800064114
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Winnick, J. (Georgia Institute of Technology Altanta, Ga., United States)
Ross, P. N. (California, University Lawrence Berkeley Laboratory, Berkeley, Calif., United States)