Electrode Kinetics of Oxygen Reduction in Lithium Carbonate Melt: Use of Impedance Analysis and Cyclic Voltammetric Techniques to Determine the Effects of Partial Pressure of Oxygen

Author(s)

Bhasker B. Davé, Texas A & M University - College Station
Ralph E. White, University of South Carolina - ColumbiaFollow
Supramanian Srinivasan, Texas A & M University - College Station
A. John Appleby, Texas A & M University - College Station

Document Type

Article

Subject Area(s)

Chemical Engineering

Abstract

The effects of the partial pressure of oxygen and temperature on the oxygen reduction on a submerged gold electrode in a lithium carbonate melt were investigated using cyclic voltammetry and impedance analysis. The values for the mass-transfer parameters, DC_O, obtained from cyclic voltammetry and impedance analysis were in good agreement. The reaction orders for oxygen at 800°C were calculated to be about 0.3 for the exchange current density and 0.5 for the product DC_O; these values are consistent with the mechanism proposed in the literature for oxygen reduction in Li₂CO₃ melt.

Publication Info

Journal of the Electrochemical Society, 1991, pages 673-678.

Rights

© The Electrochemical Society, Inc. 1991. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in the Journal of the Electrochemical Society.

http://www.electrochem.org/

DOI: 10.1149/1.2085656

http://dx.doi.org/10.1149/1.2085656