原位限域合成介孔碳负载四氧化三铁纳米颗粒

doi:10.11944/j.issn.1000-0518.2016.11.160148

摘要/Abstract

摘要：

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。

关键词: 费托反应, 纳米催化, 氧化铁, 多孔碳, 整体式结构

Abstract:

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.

Key words: Fischer-Tropsch synthesis, nanocatalysis, iron oxide, porous carbon, monolithic structures

吴丽琼, 郝利花, 李鑫恒. 原位限域合成介孔碳负载四氧化三铁纳米颗粒[J]. 应用化学, 2016, 33(11): 1340-1342.

WU Liqiong, HAO Lihua, KONG Fanhua, LI Xinheng. Confined In-Situ Synthesis of Ferroferric Oxide Nanoparticles on Mesoporous Carbon[J]. Chinese Journal of Applied Chemistry, 2016, 33(11): 1340-1342.

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