Sdiq Zhino Mohammed, Pourmokhtar Hadi, Keshavarzi Fatemeh
Bright Technical and Vocational Institute Sulaymaniyah, Iraq.
Faculty of Chemistry, University of Tabriz, Iran.
Heliyon. 2024 Sep 19;10(18):e37683. doi: 10.1016/j.heliyon.2024.e37683. eCollection 2024 Sep 30.
In the present work, Palladium nanoparticles were supported on Cinchonine functionalized ZrFeO MNPs. The structure, morphology, and physicochemical properties of the particles were characterized through different analytical techniques, including fourier transformed infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), inductively coupled plasma (ICP), X-ray powder diffraction (XRD), thermogravimetric analysis (TGA), energy dispersive X-ray spectroscopy (EDS) and vibrating sample magnetometer (VSM) techniques. Moreover, it was obtained as an efficient catalyst for Hiyama and Suzuki reactions under green conditions with good to excellent yields. This method has the advantages of simple methodology, high yields, easy work-up, greener conditions, and short reaction times. This catalyst was reused four times in C-C coupling reaction without loss of its catalytic activity. The reused catalyst was characterized by ICP and FT-IR techniques. Heterogeneity and stability of ZrFeO@SiO-S-CCH-Pd were studied by hot filtration test and ICP analysis.
在本工作中,钯纳米颗粒负载于辛可宁功能化的ZrFeO磁性纳米颗粒上。通过不同的分析技术对颗粒的结构、形态和物理化学性质进行了表征,包括傅里叶变换红外光谱(FT-IR)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、电感耦合等离子体(ICP)、X射线粉末衍射(XRD)、热重分析(TGA)、能量色散X射线光谱(EDS)和振动样品磁强计(VSM)技术。此外,它在绿色条件下是一种用于日山反应和铃木反应的高效催化剂,产率良好至优异。该方法具有方法简单、产率高、后处理容易、条件更绿色和反应时间短等优点。该催化剂在C-C偶联反应中可重复使用四次而不损失其催化活性。通过ICP和FT-IR技术对重复使用的催化剂进行了表征。通过热过滤试验和ICP分析研究了ZrFeO@SiO-S-CCH-Pd的非均相性和稳定性。