Structural study of PbO-MoO3-P2O5 glasses by Raman and NMR spectroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F11%3A39892187" target="_blank" >RIV/00216275:25310/11:39892187 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2011.03.006" target="_blank" >http://dx.doi.org/10.1016/j.jnoncrysol.2011.03.006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2011.03.006" target="_blank" >10.1016/j.jnoncrysol.2011.03.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural study of PbO-MoO3-P2O5 glasses by Raman and NMR spectroscopy

Popis výsledku v původním jazyce

Glasses in the ternary system PbO-MoO3-P2O5 were prepared in three compositional series (100?x)[0.5PbO-0.5P2O5]-xMoO3 (A), 50PbO-yMoO3-(50?y)P2O5 (B) and (50?z)PbO-xMoO3-50P2O5 (C) and their structure was studied by Raman and 31P NMR spectroscopies. In the compositional series (100?x) [0.5PbO-0.5P2O5]-xMoO3 homogeneous glasses were prepared in the concentration region of 0-70 mol% MoO3. 31P MAS NMR spectra reveal that in the glass series (A) the incorporation of MoO3 results in the shortening of phosphate chains and gradual transformation Q2 units into Q2 and Q0 units, prevailing in glasses with a high MoO3 content. Octahedral structural units MoO6 dominate in most glass compositions and they are present also in the structure of Pb(MoO2)2(PO4)2 compound corresponding to the glass composition 50Pb(PO3)2-50MoO3. The analysis of Raman spectra of glasses of the (B) series with a high MoO3 content showed the transformation of octahedral MoO6 units into tetrahedral MoO4 units.

Název v anglickém jazyce

Structural study of PbO-MoO3-P2O5 glasses by Raman and NMR spectroscopy

Popis výsledku anglicky

Glasses in the ternary system PbO-MoO3-P2O5 were prepared in three compositional series (100?x)[0.5PbO-0.5P2O5]-xMoO3 (A), 50PbO-yMoO3-(50?y)P2O5 (B) and (50?z)PbO-xMoO3-50P2O5 (C) and their structure was studied by Raman and 31P NMR spectroscopies. In the compositional series (100?x) [0.5PbO-0.5P2O5]-xMoO3 homogeneous glasses were prepared in the concentration region of 0-70 mol% MoO3. 31P MAS NMR spectra reveal that in the glass series (A) the incorporation of MoO3 results in the shortening of phosphate chains and gradual transformation Q2 units into Q2 and Q0 units, prevailing in glasses with a high MoO3 content. Octahedral structural units MoO6 dominate in most glass compositions and they are present also in the structure of Pb(MoO2)2(PO4)2 compound corresponding to the glass composition 50Pb(PO3)2-50MoO3. The analysis of Raman spectra of glasses of the (B) series with a high MoO3 content showed the transformation of octahedral MoO6 units into tetrahedral MoO4 units.

Druh

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

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/GAP106%2F10%2F0283" target="_blank" >GAP106/10/0283: Ternární fosfátová skla dotovaná oxidy přechodných kovů pro optoelektronické aplikace</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

Journal of Non-Crystalline Solids

ISSN

0022-3093

e-ISSN

—

Svazek periodika

357

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

2816-2821

Kód UT WoS článku

000292947500007

EID výsledku v databázi Scopus

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