Catalytic and electrical properties of an electrochemical NO x reduction system were investigated. This system had a laminated structure composed of BaCo(Al,Ga)11O19-based catalyst layer on a Pt/YSZ/Pt sheet. The stacked catalyst system can directly reduce more than 65% of NO x to N2 under an external bias above 2.5 V at 650 °C. In this system, oxygen existing around the catalyst layer was removed by O2− transportation through the YSZ layer.
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Yamaguchi, T., Sakamoto, W., Yogo, T. et al. Synthesis and Catalytic Properties of the Electrochemical NO x Reduction System. Catal Lett 103, 271–275 (2005). https://doi.org/10.1007/s10562-005-7164-4
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DOI: https://doi.org/10.1007/s10562-005-7164-4