The effect of preparation procedure for precursor on the morphology, surface area and porosity of alumina powders

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dc.contributor.authorAda, Kezban
dc.date.accessioned2020-06-25T17:44:46Z
dc.date.available2020-06-25T17:44:46Z
dc.date.issued2008
dc.description.abstractIn order to investigate the effect of preparation procedure for precursors on some physico-chemical properties of powders, three alumina precursors were prepared by different ways. The first precursor (P1) was precipitated by adding ammonia to the boiling aluminium sulphate solution buffered by NH3/NH4Cl (pH = 9.25). The second precursor (P2) was precipitated by the reaction between aluminium sulphate and excess urea in boiling aqueous solution (pH = 3.42). The third precursor (P3) was precipitated by the similar reaction in boiling aqueous solution buffered by C2H4(COOH)(2)/C2H4(COONH4)(2) (pH = 4.16). Three different alumina powders (P1, P2 and P3) were obtained by the calcination of the precursors at 1000 degrees C for 2 h. The powders were examined by scanning electron microscopy and nitrogen adsorption-desorption techniques. The BET specific surface areas (A) and specific micro-mesopore volumes (V) for the powders (P1, P2 and P3) were obtained as 116 m(2) g(-1) and 0.34 cm(3) g(-1), 66 m(2) g(-1) and 0.15 cm(3) g(-1) and 148 m(2) g(-1) and 0.59 cm(3) g(-1), respectively. The surface areas of the powders determined by other methods, are compared with the BET values.en_US
dc.description.sponsorshipCouncil of Ankara UniversityAnkara University [2003-07.05.082]en_US
dc.description.sponsorshipThe authors thank the Scientific Research Project Council of Ankara University for supporting this work under the Project No: 2003-07.05.082.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.endpage3266en_US
dc.identifier.issn0970-7077
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-54049152895
dc.identifier.scopusqualityQ4
dc.identifier.startpage3259en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12587/4189
dc.identifier.volume20en_US
dc.identifier.wosWOS:000259602400104
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAsian Journal Of Chemistryen_US
dc.relation.ispartofAsian Journal Of Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectaluminaen_US
dc.subjectmorphologyen_US
dc.subjectpore volumeen_US
dc.subjectprecursoren_US
dc.subjectsurface areaen_US
dc.titleThe effect of preparation procedure for precursor on the morphology, surface area and porosity of alumina powdersen_US
dc.typeArticle

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