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首页> 外文期刊>Materials Letters >Synthesis of Fe substituted aluminophosphate FeAPO-5 zeolite with mesoporosity in compressed CO_2 for the improved catalytic activity
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Synthesis of Fe substituted aluminophosphate FeAPO-5 zeolite with mesoporosity in compressed CO_2 for the improved catalytic activity

机译:在压缩CO_2中合成具有介孔性的Fe取代的铝磷酸盐FeAPO-5分子筛,以提高催化活性

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摘要

In this work, we demonstrate a novel route for synthesis of Fe substituted aluminophosphate FeAPO-5 in compressed CO_2. The synthesized FeAPO-5 contains mesoporosity without use of additional mesotem-plate. The mesoporosity was formed by CO_2-in-water emulsions during the crystallization process. Moreover, the crystallization time of FeAPO-5 nanoparticles was shortened in the presence of compressed CO_2 compared with the normal FeAPO-5 synthesized without CO_2. Because of the existence of mesopores favoring the diffusions of the reactants and products, FeAPO-5 catalyst displayed higher activity for styrene epoxidation than normal FeAPO-5. The compressed CO_2 route opens a simple, green and economic synthesis route for synthesis of hierarchical zeolites, which are of great importance to industrial applications.
机译:在这项工作中,我们证明了在压缩的CO_2中合成Fe取代的磷酸铝FeAPO-5的新途径。合成的FeAPO-5具有介孔性,无需使用其他介孔板。介孔性是由结晶过程中的水包CO_2乳液形成的。此外,与没有CO_2合成的普通FeAPO-5相比,在压缩CO_2存在下,FeAPO-5纳米颗粒的结晶时间缩短。由于存在有利于反应物和产物扩散的中孔,FeAPO-5催化剂对苯乙烯环氧化的活性比正常的FeAPO-5高。压缩的CO_2路线为分层沸石的合成开辟了一条简单,绿色且经济的合成路线,这对于工业应用至关重要。

著录项

  • 来源
    《Materials Letters》 |2013年第15期|201-203|共3页
  • 作者单位

    The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, China;

    State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, China,School of Life Science and Technology, Harbin Institute of Technology, Harbin, China;

    State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, China;

    State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, China,The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Porous materials; FeAPO-5; Nanoparticles; Mesoporosity; Compressed CO_2;

    机译:多孔材料FeAPO-5;纳米颗粒;中孔;压缩的CO_2;

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