Determination of crystallite size distribution histogram in nanocrystalline anatase powders by XRD

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10106208" target="_blank" >RIV/00216208:11320/11:10106208 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.oldenbourg-link.com/doi/abs/10.1524/zkpr.2011.0013" target="_blank" >http://www.oldenbourg-link.com/doi/abs/10.1524/zkpr.2011.0013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1524/zkpr.2011.0013" target="_blank" >10.1524/zkpr.2011.0013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Determination of crystallite size distribution histogram in nanocrystalline anatase powders by XRD

Popis výsledku v původním jazyce

The whole powder pattern modelling (WPPM) method developed by Scardi and Leoni (2002) is used for determination of a crystallite size distribution in TiO2 nanocrystalline powders. The distribution is represented by a histogram. The histogram frequenciesare refined from X-ray diffraction (XRD) data. The method is slightly modified by introduction of the distribution regularisation. It is applied on (i) two reference TiO2 samples synthesized by a sol-gel process at different temperatures (ii) and on a series of well defined mixtures of these reference samples. The refined size distributions of both reference samples can be well approximated by a log-normal distribution. The volume fractions of the reference samples in the mixtures are derived from the determined crystallite size histograms. The difficulties with an uncertainty of the distribution shape in the case of small volume fractions of small crystallites at the presence of majority of large crystallites are discussed.

Název v anglickém jazyce

Determination of crystallite size distribution histogram in nanocrystalline anatase powders by XRD

Popis výsledku anglicky

The whole powder pattern modelling (WPPM) method developed by Scardi and Leoni (2002) is used for determination of a crystallite size distribution in TiO2 nanocrystalline powders. The distribution is represented by a histogram. The histogram frequenciesare refined from X-ray diffraction (XRD) data. The method is slightly modified by introduction of the distribution regularisation. It is applied on (i) two reference TiO2 samples synthesized by a sol-gel process at different temperatures (ii) and on a series of well defined mixtures of these reference samples. The refined size distributions of both reference samples can be well approximated by a log-normal distribution. The volume fractions of the reference samples in the mixtures are derived from the determined crystallite size histograms. The difficulties with an uncertainty of the distribution shape in the case of small volume fractions of small crystallites at the presence of majority of large crystallites are discussed.

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/KAN400720701" target="_blank" >KAN400720701: Hierarchické nanosystémy pro mikroelektroniku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Zeitschrift für Kristallographie Proceedings

ISSN

1869-1315

e-ISSN

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Svazek periodika

2011

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

87-92

Kód UT WoS článku

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EID výsledku v databázi Scopus

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