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磁性间苯二酚-甲醛负载三乙烯二胺作为一种高效且可循环使用的纳米催化剂。

Magnetic resorcinol-formaldehyde supported-DABCO as an effective and recyclable nanocatalyst.

作者信息

Abaeezadeh Somayeh, Elhamifar Dawood

机构信息

Department of Chemistry, Yasouj University, Yasouj, 75918-74831, Iran.

出版信息

Sci Rep. 2025 Jul 2;15(1):22847. doi: 10.1038/s41598-025-05537-5.

DOI:10.1038/s41598-025-05537-5
PMID:40593017
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12218961/
Abstract

In this study, a novel core-shell structured magnetic resorcinol-formaldehyde functionalized with 1,4-diazabicyclo[2.2.2]octane (FeO@RF/DABCO) has been synthesized, characterized, and its catalytic efficacy has been investigated in the Knoevenagel condensation. The FeO@RF/DABCO nanocomposite was characterized by using FT-IR, TGA, PXRD, EDX, EDX-mapping, VSM, TEM and SEM analyses. The catalytic study showed that the FeO@RF/DABCO nanocomposite has remarkable performance and selectivity in the Knoevenagel reaction under solvent-free media at room temperature. This nanocatalyst was efficiently recovered and reused several times with no noticeable loss of efficiency and stability.

摘要

在本研究中，合成了一种新型的核壳结构磁性间苯二酚-甲醛，其用1,4-二氮杂双环[2.2.2]辛烷（FeO@RF/DABCO）功能化，进行了表征，并在Knoevenagel缩合反应中研究了其催化效果。通过傅里叶变换红外光谱（FT-IR）、热重分析（TGA）、粉末X射线衍射（PXRD）、能量散射X射线光谱（EDX）、EDX映射、振动样品磁强计（VSM）、透射电子显微镜（TEM）和扫描电子显微镜（SEM）分析对FeO@RF/DABCO纳米复合材料进行了表征。催化研究表明，FeO@RF/DABCO纳米复合材料在室温无溶剂介质下的Knoevenagel反应中具有显著的性能和选择性。这种纳米催化剂能够有效地回收并重复使用多次，而效率和稳定性没有明显损失。

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