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dc.contributor.authorМиронюк, Іван Федорович-
dc.contributor.authorМандзюк, Володимир Ігорович-
dc.contributor.authorСачко, Володимир Михайлович-
dc.contributor.authorГунько, Володимир Мусійович-
dc.identifier.citationI.F. Myronyuk, V.I. Mandzyuk, V.M. Sachko, V.M. Gun’ko. Structural and morphological features of disperse alumina synthesized using aluminum nitrate nonahydrate // Nanoscalle Research Letters. – 2016. – V.11 (153). – P. 1-8.uk_UA
dc.description.abstractTransformation of Al(NO3)3∙9H2O (upon heating in the range of 20-1200 oC) into blends of amorphous and crystalline boehmite (210-525 oC), amorphous alumina and crystalline gamma-Al2O3 (850 oC), and crystalline alfa-Al2O3 (1100 oC) was analyzed using XRD, HRTEM, IR spectroscopy, thermogravimetry and low-temperature nitrogen adsorption. Boehmite consists of nanoparticles of 6-10 nm in diameter and part of them has crystalline structure observed in HRTEM images, despite they are XRD amorphous. The nanoglobules are surrounded by amorphous aluminum hydroxide with chains of –AlO(H)–O–AlO(H)– of 1-5 nm in length. Heating of samples at 350-525 oC gives mesoporous aluminum hydroxide with a relatively narrow pore size distribution. An increase in calcination temperature to 850 oC decreases the porosity of alumina composed of amorphous and crystalline (gamma-Al2O3) phases. Calcination at 1100 oC gives alfa-Al2O3 with strongly decreased porosity of aggregates.uk_UA
dc.description.sponsorshipThis work was supported by the Ministry of Education and Science of Ukraine (project no. 0113U001504c).uk_UA
dc.publisherSpringer Verlaguk_UA
dc.relation.ispartofseriesV.11 (153);-
dc.subjectaluminum nitrate nonahydrateuk_UA
dc.subjectaluminum hydroxideuk_UA
dc.subjectnanoparticle morphologyuk_UA
dc.subjectaggregate textureuk_UA
dc.titleStructural and morphological features of disperse alumina synthesized using aluminum nitrate nonahydrateuk_UA
dc.title.alternativeСтруктурні та морфологічні особливості дисперсного оксиду алюмінію, синтезованого з використанням дев’ятиводного нітрату алюмініюuk_UA
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