Departmental Papers (CBE)
Document Type
Journal Article
Date of this Version
June 2008
Abstract
The electrolysis of CO2 has been examined in a solid oxide electrolyzer (SOE) using a ceramic electrode based on La0.8Sr0.2Cr0.5Mn0.5O3 (LSCM), infiltrated into a yttria-stabilized zirconia scaffold together with 0.5 wt % Pd supported on 5 wt % Ce0.48Zr0.48Y0.04O2. An SOE with this electrode exhibited a total cell impedance of 0.36 Ω cm2 at 1073 K for operation in CO–CO2 mixtures. An additional benefit is that the CO–CO2 electrode was shown to be redox stable, with LSCM exhibiting good conductivity in both oxidizing and reducing environments, so that the cell can operate in pure CO2.
Recommended Citation
Bidrawn, F., Kim, G., Corre, G., Irvine, J. T., Vohs, J. M., & Gorte, R. J. (2008). Efficient Reduction of CO2 in a Solid Oxide Electrolyzer. Retrieved from https://repository.upenn.edu/cbe_papers/120
Date Posted: 18 August 2008
This document has been peer reviewed.
Comments
Reprinted from Electrochemical and Solid-State Letters, 2008, Vol. 11, No. 9, pp. B167–B170, July 2008.