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

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.oldenbourg-link.com/doi/abs/10.1524/zkpr.2011.0013
Description	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 frequencies are 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. 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 frequencies are 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. (en)
Title	Determination of crystallite size distribution histogram in nanocrystalline anatase powders by XRD Determination of crystallite size distribution histogram in nanocrystalline anatase powders by XRD (en)
skos:prefLabel	Determination of crystallite size distribution histogram in nanocrystalline anatase powders by XRD Determination of crystallite size distribution histogram in nanocrystalline anatase powders by XRD (en)
skos:notation	RIV/00216208:11320/11:10106208!RIV12-AV0-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KAN400720701), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Matěj, Zdeněk Kužel, Radomír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	193815
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10106208
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	XRD; powders; anatase; nanocrystalline; histogram; distribution; size; crystallite; Determination (en)
http://linked.open.../riv/klicoveSlovo	XRD distribution Determination anatase crystallite histogram nanocrystalline powders size
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[C59BE9DE4303]
http://linked.open...i/riv/nazevZdroje	Zeitschrift für Kristallographie Proceedings
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Hierarchic nanosystems for microelektronics
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	2011
http://linked.open...iv/tvurceVysledku	Drahokoupil, Jan Matějová, Lenka Matěj, Zdeněk Kužel, Radomír Novotný, František
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	1869-1315
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1524/zkpr.2011.0013
http://localhost/t...ganizacniJednotka	11320

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