原位限域合成介孔碳负载四氧化三铁纳米颗粒

利用废弃蟹壳做模板制备的具有均一孔道结构的介孔碳材料做载体,在孔道内限域原位合成四氧化三铁氧化物纳米颗粒。 通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)和X射线衍射(XRD)表征了材料的结构和性能。 结果表明,孔道结构呈整体式结构,孔直径在40~50 nm,长50~200 μm。 纳米颗粒为四氧化三铁,粒径在10 nm左右,尺寸单分散性好,可均匀分散在介孔孔道内。 该方法工艺路线简单,绿色环保。

Confined In-Situ Synthesis of Ferroferric Oxide Nanoparticles on Mesoporous Carbon

Mesoporous carbon with monolithic structures were prepared using abandoned crab shells as a template. And then Fe₃O₄ nanoparticles inside those monolithic mesopores were synthesized by the confined in-situ synthetic strategy. The properties and structure of Fe₃O₄ nanoparticles on nesoporous narbon were characterized by scanning electronic microscopy(SEM), transmission electron microscope(TEM) and X-ray diffraction(XRD). The results show that the pores have a monolithic structure. The diameters of the pores are ca. 40~50 nm and their lengths are ca. 50 μm to 200 μm. The nanoparticles are proven to be Fe₃O₄ with 10 nm in diameter, which have good size monodispersity and are evenly distributed inside the pores. This method features simple and environmental benignity.