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Iranian Journal of Materials Science and Engineering، جلد ۱۱، شماره ۳، صفحات ۱-۱۰
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عنوان انگلیسی INFLUENCE OF THE PREPARATION METHOD ON THE STRUCTURE,PHASE FORMATION AND MAGNETIC PROPERTIES OF TEMPLATED CUFE2O4 SPINEL
چکیده انگلیسی مقاله The synthesis of mesoporous CuFe2O4 spinel by several nanocasting strategies (i.e., multi-step nanocasting, one step nanocasting, modified solid-liquid), in which copper and iron nitrates are used as precursors and Pluronic P123 as surfactant, is explored. We have also checked the effect of pH, citric acid and sodium citrate in multi-step nanocasting method. The modified solid-liquid method which contains impregnating mesoporous silica by molten state salts in a non-ionic solvent seems to be the best choice to obtain single phase ordered mesoporous copper ferrite. Other methods suffer from the presence of copper oxide or hematite as impurities or lack of integrity in the mesoporous structure. Increasing pH up to 9.5 does not enhance the phase formation inside the pores of the silica matrix. The citric acid yields a fine structure but does not facilitate the phase formation. Adding sodium citrate neither heals the phase formation nor the structure of the final product. Moreover, vinyl- functionalized mesoporous silica exploited in this study as a hard template entraps both metal nitrates in the pores, assisting impregnation procedure
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نویسندگان مقاله n نجم الدین | n. najmoddin
department of materials and nano physics, kth-royal institute of technology, 16440 kista-stockholm,


حمیدرضا رضایی | h r rezaie
center of excellence for ceramic materials in energy and environment applications, school of metallurgy


a بیت اللهی | a. beitollahi
center of excellence for ceramic materials in energy and environment applications, school of metallurgy


محمدصادق toprak | m s toprak
department of materials and nano physics, kth-royal institute of technology, 16440 kista-stockholm,
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-3-185&slc_lang=en&sid=en
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Research paper
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