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Customized three-dimensional porous catalyst for Knoevenagel reaction

机译：用于Knoevenagel反应的定制三维多孔催化剂

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摘要

Despite the success in the fabrication of various arbitrary-sized one-dimensional architectures, researches still face specific disadvantages of uncontrollable porosity and disordered structures, leading to a deficiency in micro-sized porous for efficient catalytic performance. To improve these limitations, herein, fabricating controllable microstructures based on three-dimensional (3D) printing technology was conducted for catalysis applications. Initially, a multi-channel organized structure printed by silica (SiO2) powder was as the support, onto which different organic functional groups were immobilized. Prior to exploring the catalytic efficiency, different techniques were used to investigate the characterization of 3D-SiO(2)systematically. Amongst various immobilized functional groups, the 3D-SiO(2)modified with diethylenetriamine showed the best catalytic activity for Knoevenagel condensation reaction. Moreover, the results showed that 3D-SiO(2)enhanced catalytic activities of over 90% in only 30 min and could be reused more than ten times with high-performance efficiency while transforming various aldehydes in the presence of malononitrile.
机译：尽管在制造各种任意尺寸的一维架构方面取得了成功，但研究仍然面临无法控制的孔隙率和无序结构的特定缺点，导致微型多孔缺乏高效催化性能。为了改善这些限制，这里，对催化应用进行了基于三维（3D）印刷技术的制造可控微结构。最初，由二氧化硅（SiO 2）粉末印刷的多通道有机化结构是载体，其固定不同的有机官能团上。在探索催化效率之前，使用不同的技术来系统地研究3D-SIO（2）的表征。在各种固定化官能团中，用二亚乙基三胺改性的3D-SiO（2）显示了Knoevenagel缩合反应的最佳催化活性。此外，结果表明，3D-SiO（2）仅在30分钟内增强90％以上的催化活性超过90％，并且可以以高性能效率重复超过十倍，同时在丙二腈存在下转化各种醛。

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  • 来源
    《Journal of porous materials》 |2020年第3期|779-788|共10页
  • 作者

    Jiang Yan; Jiang Fu-Quan; Liao Xu; Lai Shi-Lin; Wang Shi-Bin; Xiong Xing-Quan; Zheng Jun; Liu Yuan-Gang;

  • 作者单位

    Huaqiao Univ Coll Mat Sci & Engn Xiamen 361021 Fujian Peoples R China;

    Xiamen Univ Sch Pharmaceut Sci Fujian Prov Key Lab Innovat Drug Target Res Xiamen 361102 Peoples R China;

    Huaqiao Univ Coll Mat Sci & Engn Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Mat Sci & Engn Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Mat Sci & Engn Xiamen 361021 Fujian Peoples R China|Huaqiao Univ Inst Pharmaceut Engn Xiamen 361021 Fujian Peoples R China|Fujian Prov Key Lab Biochem Technol Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Mat Sci & Engn Xiamen 361021 Fujian Peoples R China;

    Xiamen Univ Technol Sch Mat Sci & Engn Xiamen 361021 Fujian Peoples R China;

    Huaqiao Univ Coll Chem Engn Xiamen 361021 Fujian Peoples R China|Huaqiao Univ Inst Pharmaceut Engn Xiamen 361021 Fujian Peoples R China|Fujian Prov Key Lab Biochem Technol Xiamen 361021 Fujian Peoples R China;

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

    3D printing; Controllable structure; Heterogeneous catalyst; Knoevenagel reaction;

    机译：3D打印;可控结构;非均相催化剂;Knoevenagel反应;

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