نوع مقاله : مقاله علمی پژوهشی
نویسندگان
گروه شیمی، دانشگاه یاسوج، یاسوج، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this research, the 1, 2-bis(4-pyridylthio)ethane (PTE) functionalized grapheme oxide is used as powerful support for immobilization of cobalt complex to deliver a novel heterogeneous catalyst (Co-PTE-GO) for epoxidation of alkenes. The Co-PTE-GO catalyst was characterized by different techniques such as Fourier transform infrared (FT-IR) spectroscopy, thermal gravimetric analysis (TGA), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), Raman spectroscopy and inductively coupled plasma optical emission spectrometry (ICP-OES). These analyses confirmed high chemical and thermal stability of the designed catalyst. The Co-PTE-GO was used for epoxidation of linear and cyclic alkenes giving corresponding epoxides in high yields (81-97%). This catalyst was recovered and reused at least 4 times with keeping its performance under reaction conditions.
کلیدواژهها [English]
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