Dehghani Modarres, Tadjarodi Azadeh, Chamani Sanaz
Research Laboratory of Inorganic Materials Synthesis, Department of Chemistry, Iran University of Science and Technology, Narmak, Tehran 16844-13114, Iran.
ACS Omega. 2019 Jun 19;4(6):10640-10648. doi: 10.1021/acsomega.9b00666. eCollection 2019 Jun 30.
Zeolite faujasite is widely used as a catalyst in many industrial catalytic applications. In this study, synthesis and characterization of magnetic zeolite Y-palladium-nickel ferrite were studied. First, palladium nanoparticles were combined with nickel ferrite and then placed on zeolite Y by ultrasonic treatment. The structure and morphology of the synthesized magnetic zeolite Y-palladium-nickel ferrite were characterized using Fourier transform infrared, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray, vibrating sample magnetometer, and inductively coupled plasma optical emission spectroscopy analysis. Also, we investigated the catalytic activity of this prepared zeolite in Suzuki-Miyaura coupling reaction between phenylboronic acid and aryl halides. Our study shows that magnetic zeolite Y-palladium-nickel ferrite is a suitable catalyst for Suzuki-Miyaura coupling reaction. Short reaction time, high yield, and easy reusability are the advantages of using this catalyst in carbon-carbon cross-coupling reactions.
八面沸石在许多工业催化应用中被广泛用作催化剂。在本研究中,对磁性Y型沸石-钯-镍铁氧体的合成与表征进行了研究。首先,将钯纳米颗粒与镍铁氧体结合,然后通过超声处理将其置于Y型沸石上。使用傅里叶变换红外光谱、X射线衍射、扫描电子显微镜、透射电子显微镜、能量色散X射线光谱、振动样品磁强计和电感耦合等离子体发射光谱分析对合成的磁性Y型沸石-钯-镍铁氧体的结构和形态进行了表征。此外,我们研究了这种制备的沸石在苯硼酸与芳基卤化物之间的铃木-宫浦偶联反应中的催化活性。我们的研究表明,磁性Y型沸石-钯-镍铁氧体是铃木-宫浦偶联反应的合适催化剂。反应时间短、产率高以及易于重复使用是在碳-碳交叉偶联反应中使用这种催化剂的优点。