XRD analysis of nanocrystalline anatase powders prepared by various chemical routes: correlations between micro-structure and crystal structure parameters
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10173493" target="_blank" >RIV/00216208:11320/13:10173493 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/67985858:_____/13:00398859
Výsledek na webu
<a href="http://dx.doi.org/10.1017/S0885715613001061" target="_blank" >http://dx.doi.org/10.1017/S0885715613001061</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/S0885715613001061" target="_blank" >10.1017/S0885715613001061</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
XRD analysis of nanocrystalline anatase powders prepared by various chemical routes: correlations between micro-structure and crystal structure parameters
Popis výsledku v původním jazyce
Nanocrystalline anatase powders synthesised by various chemical processes as super/subcritical fluid extraction, sol-gel technique and hydrolysis of titanium alkoxides in hydrogen peroxide were studied by X-ray diffraction (XRD) whole profile modelling method (WPPM) in order to reveal correlations between structural and micro-structural parameters as well as sample treatment conditions. Anisotropy of the diffraction line broadening due to truncated bipyramidal shape of anatase crystals was discussed. The hkl-anisotropy can be very strong but also almost negligible in dependence on relative ratio of the crystallite dimensions. The latter was the case for the studied samples. The size of synthesised anatase nanoparticles was within the range 325 nm. Thetheoretical total surface area of crystallites calculated from XRD was in a good correlation with the surface area measured by the nitrogen physisorption up to the temperature 400-450 degrees C, when the particles started to agglomerate.
Název v anglickém jazyce
XRD analysis of nanocrystalline anatase powders prepared by various chemical routes: correlations between micro-structure and crystal structure parameters
Popis výsledku anglicky
Nanocrystalline anatase powders synthesised by various chemical processes as super/subcritical fluid extraction, sol-gel technique and hydrolysis of titanium alkoxides in hydrogen peroxide were studied by X-ray diffraction (XRD) whole profile modelling method (WPPM) in order to reveal correlations between structural and micro-structural parameters as well as sample treatment conditions. Anisotropy of the diffraction line broadening due to truncated bipyramidal shape of anatase crystals was discussed. The hkl-anisotropy can be very strong but also almost negligible in dependence on relative ratio of the crystallite dimensions. The latter was the case for the studied samples. The size of synthesised anatase nanoparticles was within the range 325 nm. Thetheoretical total surface area of crystallites calculated from XRD was in a good correlation with the surface area measured by the nitrogen physisorption up to the temperature 400-450 degrees C, when the particles started to agglomerate.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BM - Fyzika pevných látek a magnetismus
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GAP108%2F11%2F1539" target="_blank" >GAP108/11/1539: Nanokrystalické materiály - rtg charakterizace struktury a její teplotní stability</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Powder Diffraction
ISSN
0885-7156
e-ISSN
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Svazek periodika
28
Číslo periodika v rámci svazku
S2
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
23
Strana od-do
"S161"-"S183"
Kód UT WoS článku
000327314000016
EID výsledku v databázi Scopus
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