T. Murota, T. Hasegawa, S. Aozasa
Mar 15, 1993
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Journal
Journal of Alloys and Compounds
Abstract
Abstract The oxygen storage capacity of cerium oxide (CeO2) containing zirconium oxide (10, 20, 30, 50, 85, 93 mol%) (ZrO2) was studied by measuring temperature programmed reduction. On increasing the ZrO2 content, the reduction reaction at 530 °C appeared stronger, and that at 800 °C weaker. A 50CeO250ZrO2 mixture comprised tetragonal ZrO2(CeO2) and cubic CeO2(ZrO2). Whereas the 15CeO285ZrO2 mixture comprised a phase of tetragonal ZrO2(CeO2) which gave a maximum OSC peak. Characterization of the as-prepared and TPR resulting samples were carried out by XRD and SEM.