Departmental Papers (CBE)

Document Type

Journal Article

Date of this Version

June 2008


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.


Reprinted from Electrochemical and Solid-State Letters, 2008, Vol. 11, No. 9, pp. B167–B170, July 2008.



Date Posted: 18 August 2008

This document has been peer reviewed.