Preparation of vanadium- substituted polyoxometalate supported on nanostructure Y- type zeolite and investigation their catalytic properties
- سال انتشار: 1387
- محل انتشار: دومین کنگره بین المللی علوم و فناوری نانو
- کد COI اختصاصی: ICNN02_480
- زبان مقاله: انگلیسی
- تعداد مشاهده: 871
نویسندگان
Department of chemistry, University of Payame Noor , P. O. Box ۸۱۳۹۵-۶۷۱ , Isfahan ,Iran
Department of Chemistry, Faculty of Chemistry, University of Isfahan
چکیده
Supported heteropolyanions are important for many applications, because bulk HPAs have low specific surface area. Different carriers have been used to support HPA and its thermal stability has been shown to be dependent on the type of the support and the loading of HPA. It is well known that Y – type zeolite can incorporate immobilize various catalyst complexes in their structure [1]. Typical complexes which have been incorporated are metal phthalocyanine complexes, metal bis (salicylaldehyde) ethylenediimine complexes [2]. These highly ordered systems with large specific areas and pore volumes, high density of surface silanol groups and high thermal stability make them excellent candidates for many applications in the areas of catalysis, sorption, separation, chemical sensing, etc [3]. In this work, we present the studies of the catalytic behavior of polyoxometalate deposited on Y-type zeolite. For comparison catalyst with heteropolyanion supported on Y-type zeolite, the catalytic activity was tested with the oxidation of alkenes. A wide range of chemical process has been found to be promoted or accelerated by sonication [4,5کلیدواژه ها
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