Chemical model of binary molybdenum phosphate glasses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F21%3A39918693" target="_blank" >RIV/00216275:25310/21:39918693 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0022459621005673?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022459621005673?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jssc.2021.122522" target="_blank" >10.1016/j.jssc.2021.122522</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Chemical model of binary molybdenum phosphate glasses

Popis výsledku v původním jazyce

The influence of molybdenum on the actual chemical composition of phosphate glasses prepared in the range of the batch compositions from ultraphosphate to pyrophosphate was studied. An analysis of the glasses by XRF, ESR and 31P MAS NMR, supplemented by Raman spectroscopy, showed that the chemical composition of the ultraphosphate glass shifted significantly to the metaphosphate region of divalent cations, leading to very stable glass. The chemical composition of the remaining glasses also shifted towards a lower phosphorus content, i.e., to pyrophosphates, but their chemical composition remained in the area between metaphosphates and pyrophosphates of divalent cation. A chemical model was designed for all the glasses, the main glass-forming compounds were determined and the result was successfully confronted with the compositional dependences of both the glass transition temperature and the coefficient of thermal expansion.

Název v anglickém jazyce

Chemical model of binary molybdenum phosphate glasses

Popis výsledku anglicky

The influence of molybdenum on the actual chemical composition of phosphate glasses prepared in the range of the batch compositions from ultraphosphate to pyrophosphate was studied. An analysis of the glasses by XRF, ESR and 31P MAS NMR, supplemented by Raman spectroscopy, showed that the chemical composition of the ultraphosphate glass shifted significantly to the metaphosphate region of divalent cations, leading to very stable glass. The chemical composition of the remaining glasses also shifted towards a lower phosphorus content, i.e., to pyrophosphates, but their chemical composition remained in the area between metaphosphates and pyrophosphates of divalent cation. A chemical model was designed for all the glasses, the main glass-forming compounds were determined and the result was successfully confronted with the compositional dependences of both the glass transition temperature and the coefficient of thermal expansion.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Solid State Chemistry

ISSN

0022-4596

e-ISSN

—

Svazek periodika

303

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

122522

Kód UT WoS článku

000700860100064

EID výsledku v databázi Scopus

2-s2.0-85113176502