Walnut shell-assisted synthesis of ceria nanoparticle
محل انتشار: کنگره ملی شیمی ونانو شیمی از پژوهش تا توسعه ملی
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 537
فایل این مقاله در 10 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
MRSS01_004
تاریخ نمایه سازی: 29 فروردین 1397
چکیده مقاله:
Ceria (CeO2) nanoparticles have been produced from cerium nitrate and walnut shell as a worthless agricultural waste by a thermal decomposition method followed by open air calcination. These nanoparticles further were characterized using powder X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscope (EDX) and fourier transform infrared spectroscopy (FT-IR). Moreover, the efficiency of CeO2 nanoparticles as a support for palladium nanoparticles and subsequent use in aerobic oxidation of alcohols has been investigated. TEM image of a recovered catalyst indicates the formation of 12 nm sized palladium nanoparticles within the cerium oxide nanoparticles. The catalyst is quite effective for the oxidation of primary and secondary benzylic alcohols into their corresponding aldehydes and ketones under atmospheric pressure of air. Aerobic oxidation of secondary aliphatic alcohols is performed in an oxygen atmosphere.
کلیدواژه ها:
نویسندگان
Khadijeh Alimoradlu
Nanotechnology Research Center, Urmia University, Urmia ۵۷۱۵۴, Iran
Asghar Zamani
Nanotechnology Research Center, Urmia University, Urmia ۵۷۱۵۴, Iran
Ahmad Poursattar Marjani
Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia ۵۷۱۵۴
Mahmoud Ghasemi
Nanotechnology Research Institute, Urmia University, Urmia, Iran