High Speed Reaction Field of Stable/ Metastable Phases Mixed in Nano-scale and Its Applications

在Zr-Ce-Pr-O系中可以同时存在几种类似CaF_2的相，它们是由Zr-Ce-O和Zr-Pr-O系中的CaF_2相衍生而来的。当具有适当组成的类似颗粒通过烧结连贯连接时，可能引入氧缺陷位点，相反，在界面区域也可能发生氧嵌入。当优化这些现象时，涉及稳定/亚稳相的复合氧化物已经证明了它们作为废气催化剂和甲烷-水蒸气重整的上级反应场的潜力。

Several resembling CaF_2-like phases could coexist in the Zr-Ce-Pr-O system which were originated from the Zr-Ce-O and Zr-Pr-O systems. When the analogous particles with appropriate compositions are connected coherently by sintering, oxygen deficient-sites may be introduced and on the contrary oxygen intercalation may also occur in the interface region. When optimizing the phenomena, complex oxides involving stable/ metastable phases have demonstrated their potentials as superior reaction fields for exhaust gas catalyst and methane-steam reforming.