Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 11, Issue 9, Pages B167-B170Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.2943664
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Funding
- Engineering and Physical Sciences Research Council [EP/E064248/1] Funding Source: researchfish
- EPSRC [EP/E064248/1] Funding Source: UKRI
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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 Omega cm(2) 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. (C) 2008 The Electrochemical Society.
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