In this paper, we suggest the synthetic routes to prepare octahedrally crystallized hematite particles. One of these routes allows stabilizing pseudomorphic nanoparticles. Calcination of iron (III) oleate at 300 °C in air gives triangular shaped magnetite particles. At higher temperatures (400–500 °C), the octahedrons, about 1 μm in size, with predominant hematite phase are obtained. Calcination of the same precursor in the presence of polymeric beads results in a decrease of particle size up to 20 nm while preserving the magnetic phase admixture. To achieve effective stabilization swelling of polystyrene beads during the iron (III) oleate impregnation is required.

在本文中，我们建议合成八面体结晶赤铁矿颗粒的合成途径。这些途径之一允许稳定假晶纳米颗粒。在空气中于300°C下煅烧油酸铁（III），得到三角形磁铁矿颗粒。在较高的温度（400–500°C）下，可获得八面体，尺寸约为1μm，具有主要的赤铁矿相。在存在聚合物珠粒的情况下，对相同前驱物进行煅烧会导致最大20 nm的粒径减小，同时保留了磁性相混合物。为了实现有效的稳定化，需要在油酸铁（III）浸渍过程中使聚苯乙烯珠粒溶胀。