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<p>This study designed and synthesized a new magnetic Palladium-containing nanocatalyst supported on ZnFe<sub>2</sub>O<sub>4</sub> (zinc ferrite magnetic nanoparticles). TGA, TEM, FT-IR, EDS, XRD, BET, VSM, X-ray mapping, ICP-OES, and SEM techniques are used to analyze the structure and magnetic properties of this nanomagnetic material. The synthesized heterogeneous catalyst (ZnFe<sub>2</sub>O<sub>4</sub>@SiO<sub>2</sub>@CPTMS@PYA-Pd) revealed remarkable properties, including high thermal and chemical stability, low toxicity, and efficient reusability. The catalytic behavior of ZnFe<sub>2</sub>O<sub>4</sub>@SiO<sub>2</sub>@CPTMS@PYA-Pd was studied in very well-known C-C bond formation reactions (i.e., Stille and Suzuki cross-coupling reactions), and substituted biphenyls were achieved with good to high yield and conversion. The catalyst demonstrated exceptional performance in cross-coupling reactions, achieving yields of up to 96% for Suzuki reactions (100&#xa0;min reaction time) and 94% for Stille reactions (120&#xa0;min reaction time) under optimized conditions. The ZnFe<sub>2</sub>O<sub>4</sub>@SiO<sub>2</sub>@CPTMS@PYA-Pd was recovered easily by an external magnet and reused for five consecutive runs while maintaining with negligible decreases in its activity in described coupling reactions.</p>

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Preparation and identification of new magnetic heterogeneous nanostructural palladium catalyst, and its catalytic study in Suzuki and Stille reactions

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月12日

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  • Sahar Safari,
  • Arash Ghorbani-Choghamarani,
  • Arezo Monem,
  • Majid Rezaeivala

摘要

This study designed and synthesized a new magnetic Palladium-containing nanocatalyst supported on ZnFe2O4 (zinc ferrite magnetic nanoparticles). TGA, TEM, FT-IR, EDS, XRD, BET, VSM, X-ray mapping, ICP-OES, and SEM techniques are used to analyze the structure and magnetic properties of this nanomagnetic material. The synthesized heterogeneous catalyst (ZnFe2O4@SiO2@CPTMS@PYA-Pd) revealed remarkable properties, including high thermal and chemical stability, low toxicity, and efficient reusability. The catalytic behavior of ZnFe2O4@SiO2@CPTMS@PYA-Pd was studied in very well-known C-C bond formation reactions (i.e., Stille and Suzuki cross-coupling reactions), and substituted biphenyls were achieved with good to high yield and conversion. The catalyst demonstrated exceptional performance in cross-coupling reactions, achieving yields of up to 96% for Suzuki reactions (100 min reaction time) and 94% for Stille reactions (120 min reaction time) under optimized conditions. The ZnFe2O4@SiO2@CPTMS@PYA-Pd was recovered easily by an external magnet and reused for five consecutive runs while maintaining with negligible decreases in its activity in described coupling reactions.