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Journal of Nanostructures، جلد ۷، شماره ۱، صفحات ۵۷-۶۳
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عنوان انگلیسی Synthesis, Characterization and Catalytic Performance in the Selective Oxidation of Alcohols by Metallophthalocyanines Supported on Zinc Oxide Nanoparticles
چکیده انگلیسی مقاله Unsubstituted phthalocyanines of Co, Fe and Mn supported on zinc oxide nanoparticles were prepared and were well characterized with X-ray diffraction (XRD) and scanning electron microscopy (SEM). The oxidation of alcohols with tert-butylhydroperoxide (TBHP), in the presence of metallophthalocyanines (MPc) supported on zinc oxide nanoparticles was investigated. These MPc/ZnO nanocomposites were effective catalysts for the oxidation of alcohols such as cyclohexanol (83.4% conversion; 100% selectivity), benzyl alcohol (70.5% conversion; 100% selectivity) and hexanol (62.3% conversion; 100% selectivity). The influences of reaction time, various metals and type of substrates and oxidants on the oxidation of alcohols were also studied, and optimized conditions were investigated. Under these reaction conditions, the activity of the catalysts decreases in the following order: CoPc/nano-ZnO > FePc/nano-ZnO > MnPc/nano-ZnO. It shows that TBHP is more efficient oxidant due to weaker O-O bond with respect to H2O2 and the following order has been observed for the percentage of conversions of alcohols: 2º > benzylic > 1º.
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نویسندگان مقاله امین عبادی |
department of chemistry, kazerun branch, islamic azad university
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

ساناز شجاعی |
department of chemistry, kazerun branch, islamic azad university
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

نشانی اینترنتی http://jns.kashanu.ac.ir/article_34276_00d804337812553f81d37951f690f9d3.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/497/article-497-371179.pdf
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زبان مقاله منتشر شده en
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