Oxidy hlinité připravené homogenním srážením Al2(SO4)3 s močovinou ve vodném prostředí

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F06%3A00040356" target="_blank" >RIV/61388980:_____/06:00040356 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hydrous aluminium-oxides prepared by homogeneous precipitation from aluminium(III)sulphate with urea

Popis výsledku v původním jazyce

Easily filtrated alumina-oxides spherical precursors were prepared by homogeneous precipitation from aluminium(III) sulphate with urea. Urea was employed as precipitation agent. X-Ray powder diffraction (XRD) spectra identified three different phases, namely: alpha-boehmite, boehmite and hydrobasaluminite. The morphology of prepared samples was observing by SEM (scanning electron microscopy) equipped with EDX (energy dispersive analysis by X-rays). The spherical clusters were examined at small concentration and the hydrobasaluminite islands were observed at the largest concentration of reagents. The microstructure characteristics were obtained by BET (Brunauer-Emmett-Teller) and BJH (Barrel-Joyner-Halanda) methods. BET in wide range from 6 to 142 m(2)/g and the all kinds of porous distribution were acquired, respectively. These methods showed that relationship between phase structures and microstructure exists.

Název v anglickém jazyce

Hydrous aluminium-oxides prepared by homogeneous precipitation from aluminium(III)sulphate with urea

Popis výsledku anglicky

Easily filtrated alumina-oxides spherical precursors were prepared by homogeneous precipitation from aluminium(III) sulphate with urea. Urea was employed as precipitation agent. X-Ray powder diffraction (XRD) spectra identified three different phases, namely: alpha-boehmite, boehmite and hydrobasaluminite. The morphology of prepared samples was observing by SEM (scanning electron microscopy) equipped with EDX (energy dispersive analysis by X-rays). The spherical clusters were examined at small concentration and the hydrobasaluminite islands were observed at the largest concentration of reagents. The microstructure characteristics were obtained by BET (Brunauer-Emmett-Teller) and BJH (Barrel-Joyner-Halanda) methods. BET in wide range from 6 to 142 m(2)/g and the all kinds of porous distribution were acquired, respectively. These methods showed that relationship between phase structures and microstructure exists.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/1M0577" target="_blank" >1M0577: Výzkumné centrum pro nanopovrchové inženýrství</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ceramics - Silikáty

ISSN

0862-5468

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

22-26

Kód UT WoS článku

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EID výsledku v databázi Scopus

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