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Efficient reduction of CO2 in a solid oxide electrolyzer

机译:在固体氧化物电解槽中有效减少CO2

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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.
机译:已经在使用基于La0.8Sr0.2Cr0.5Mn0.5O3(LSCM)的陶瓷电极的固体氧化物电解器(SOE)中检查了CO2的电解,渗入到氧化钇稳定的氧化锆支架中,并负载有0.5 wt%的Pd。 5重量%的Ce0.48Zr0.48Y0.04O2。使用此电极的SOE在1073 K时在CO-CO2混合物中运行时的总电池阻抗为0.36 Omega cm(2)。另一个好处是,CO-CO2电极被证明是氧化还原稳定的,而LSCM在氧化和还原环境中均表现出良好的电导率,因此电池可以在纯CO2中运行。

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