Single (α-Fe₂O₃ and Fe₃O₄) and composite iron oxides (α-Fe₂O₃@Fe₃O₄) have been prepared by chemical vapor deposition for clean combustion. The physio-chemical properties of the obtained thin films were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and the redox properties via temperature programmed reduction analyses. The catalytic performance for the oxidation of C₂H₂ and CO and their mixtures as representatives of exhaust gases was performed at temperatures range of 100–400°C. The best performance, with respect to total oxidation of individual gas, was achieved by α-Fe₂O₃@Fe₃O₄ composite that presented the highest amount of electrophilic oxygen on the surface (O-species) and the lowest reduction temperature. α-Fe₂O₃@Fe₃O₄ also exhibited good performance towards the total abatement of the mixed gases at different gas hourly space velocities. Moreover, the catalysts were reusable and stable upon several consecutive runs and no obvious deactivation was observed after 11 h prolonged time-on-stream at 300 °C. The higher quantity of surface oxygen species, the low-temperature reducibility and the porous-like morphology are suggested to play decisive roles in the catalytic oxidation processes. The deep oxidation of individuals and mixed gases by the coexisting α-Fe₂O₃@Fe₃O₄ is a promising strategy in energy utilization and environmental protection.

单（的α-Fe ₂ ö ₃和Fe ₃ ö ₄ ）和复合铁氧化物（的α-Fe ₂ ö ₃ @Fe ₃ ö ₄ ）已经制备通过化学气相沉积为清洁燃烧。通过X射线衍射，X射线光电子能谱，扫描电子显微镜和通过程序升温还原分析的氧化还原性质来表征所获得的薄膜的物理化学性质。C ₂ H ₂氧化的催化性能CO和它们的混合物作为废气的代表是在100-400°C的温度范围内进行的。最佳的性能，相对于单独的气体的总的氧化，由的α-Fe实现₂ ö ₃ @Fe ₃ ö ₄出示的表面（O-物种）和最低还原温度对电的氧的量最高复合。的α-Fe ₂ ö ₃ @Fe ₃ ö ₄也显示出良好的对混合气体中的不同的气体时空速总消减性能。此外，该催化剂在多次连续运行后可重复使用且稳定，并且没有明显的失活在300°C下延长了11 h的运行时间后，观察到了这一现象。大量的表面氧，低温还原性和多孔状形态被认为在催化氧化过程中起着决定性的作用。通过共存的α-Fe的个人和混合气体的深度氧化₂ö₃@Fe₃ö₄是一个有希望的能源利用和环境保护的策略。