Prototype FeO_x/TiO₂ was applied for dehydrogenation of ethane to ethylene and successive CO₂ activation to CO for further chemical looping (CL) application. The Fe(5)/TiO₂ exhibited a facile redox cyclic activity with an insignificant coke formation and comparable CO₂ activation through reduction-oxidation reaction cycles. During the oxidative dehydrogenation of chemical looping (CL-ODH), the Fe nanoparticles (Fe₂O₃) on the rutile TiO₂ were partially transformed to the thermally stable FeTiO₃ phases with its lower oxidation state (Fe²⁺) below 700 °C. However, the formations of Fe₂TiO₅ phases were found to be less active than the smaller sizes of iron oxides (Fe³⁺). The thermally stable iron phases with their reversible redox natures between FeTiO₃ and Fe₂O₃ phases were responsible for a stable reduction-oxidation activity. The robust preservation of the partially reduced surface Fe²⁺ sites with the copresence of the larger Fe₂O₃ hematite crystallites on the TiO₂ was responsible for improving the redox activity and stability.

原型FeO _x / TiO ₂用于将乙烷脱氢为乙烯，然后将CO ₂连续活化为CO，以进一步进行化学环（CL）应用。Fe（5）/ TiO ₂表现出容易的氧化还原循环活性，焦炭的形成不明显，并且通过还原-氧化反应循环可比的CO ₂活化。在化学环氧化脱氢（CL-ODH）过程中，金红石TiO ₂上的Fe纳米颗粒（Fe ₂ O ₃）部分转化为热稳定的FeTiO ₃相，其较低的氧化态（Fe ²⁺）低于700° C。但是，铁的形成发现₂ TiO ₅相的活性小于较小尺寸的氧化铁（Fe ³⁺）。在FeTiO ₃和Fe ₂ O ₃相之间具有可逆氧化还原性质的热稳定铁相负责稳定的还原氧化活性。TiO ₂上同时存在较大的Fe ₂ O ₃赤铁矿微晶，部分还原的表面Fe ²⁺位点得以牢固保留，这有助于提高氧化还原活性和稳定性。