Kumar Anjan, Abdellattif Magda H, Hsu Chou-Yi, Makasana Jayanti, Ballal Suhas, Kadheem Munther, Singh Abhayveer, Krithiga T, Mishra Swati, Bhakuni Pushpa Negi
Department of Electronics and Communication Engineering, GLA University, Mathura, 281406, India.
Chemistry Department, College of Sciences, University College of Taraba, Taif University, Taif, Saudi Arabia.
Sci Rep. 2025 Aug 31;15(1):32015. doi: 10.1038/s41598-025-16233-9.
This study focuses on the synthesis of a novel magnetic interphase palladium catalyst immobilized on pyromellitic dianhydride (PM)-coated magnetic SnFeO nanoparticles. Such surface functionalization of magnetic particles represents a promising strategy to bridge the gap between heterogeneous and homogeneous catalysis methods. The structure, morphology, and physicochemical properties of these particles were thoroughly examined using various analytical techniques, including FT-IR, SEM, XRD, VSM, ICP, and EDS. The resulting SnFeO/SiO/PM-Pd nanocatalyst exhibited excellent catalytic performance as a recyclable catalyst in Suzuki-Miyaura cross-coupling reactions at room temperature. Additionally, the catalyst demonstrated high reusability, showing minimal palladium leaching and no significant loss in activity across multiple cycles.
本研究聚焦于一种新型磁性相间钯催化剂的合成，该催化剂固定在均苯四甲酸二酐（PM）包覆的磁性SnFeO纳米颗粒上。磁性颗粒的这种表面功能化是一种很有前景的策略，可弥合多相催化和均相催化方法之间的差距。使用包括傅里叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）、X射线衍射（XRD）、振动样品磁强计（VSM）、电感耦合等离子体质谱（ICP）和能谱仪（EDS）在内的各种分析技术，对这些颗粒的结构、形态和物理化学性质进行了全面研究。所得的SnFeO/SiO/PM-Pd纳米催化剂在室温下的铃木-宫浦交叉偶联反应中作为可循环使用的催化剂表现出优异的催化性能。此外，该催化剂显示出高可重复使用性，在多个循环中钯的浸出极少，活性也没有明显损失。
