Solid oxide electrolysis cells (SOECs) have the characteristics of a high efficiency, cleanliness, and environmental friendliness and have become one of the important energy conversion methods. However, the coarse agglomeration of Ni will affect the performance seriously and affect the life of the cell. In this study, we fabricated a Ni−YSZ-supported microtubule electrolysis cell and impregnated SDC nanoparticles onto the surface of Ni−YSZ electrode to change the microstructure of the cathode. At 800 °C, the addition of SDC was beneficial to improve the electrochemical reduction of CO 2 . Compared with the pure Ni−YSZ electrode, after adding SDC particles to the electrode, the current density increased by 2 times, the current efficiency reached 97.7%, and the CO concentration in the exhaust gas was 29.31%. SOEC had good stability after 100 h of operation, which provided a new idea to design the improvement of the electrode microstructure.
In this work, Mn2O3, Mn3O4 and MnO single crystals are prepared by using MnCO3 as the precursor. In addition, Co element is loaded on the three manganese oxide single crystals for the CO oxidation reaction.
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