Publikace detail

Sodium Ion Conductivity in Mixed Former Na2O-P2O5-GeO2 and Na2O-B2O3-P2O5-GeO2 Glasses

Autoři: Sklepic Kristina | Tricot Gregory | Mošner Petr | Koudelka Ladislav | Mogus-Milankovic Andrea

Rok: 2021

Druh publikace: článek v odborném periodiku

Název zdroje: Journal of Physical Chemistry C

Název nakladatele: American Chemical Society

Místo vydání: Washington

Strana od-do: 10593-10604

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Vodivost sodných iontů ve sklech kompozičních řad Na2O-P2O5-GeO2 and Na2O-B2O3-P2O5-GeO2	Byl studován vliv záměny sklotvorných oxidů na elektrické vlastnosti skel připravených v kompozičních řadách 40Na(2)O-(60-x)P2O5-xGeO(2) a 40Na(2)O-10B(2)O(3)-(50-x)P2O5-xGeO(2), x = 0-30 mol %.	fosforečnanová skla; borofosforečnanová skla; GeO2; struktura; vlastnosti
eng	Sodium Ion Conductivity in Mixed Former Na2O-P2O5-GeO2 and Na2O-B2O3-P2O5-GeO2 Glasses	In this study, a mixed glass network effect (MGFE) is verified in two sodium ion conducting glass series: 40Na(2)O-(60 - x)P2O5-xGeO(2) and 40Na(2)O-10B(2)O(3)-(50 - x)P2O5-xGeO(2), x = 0-30 mol %. Network former substitution results in the significant electrical conductivity enhancement for both systems. This behavior is explained by the increased mobility of the Na+ ions, due to the depolymerization of the (boro)phosphate network and the emergence of easily conductive pathways after germanate incorporation and formation of various mixed Ge/P (Ge/B/P) structural units. With the help of 1D/2D MAS NMR techniques, we are able to determine and quantify structural units that form a glass network but also to gain insight into local environment and linkages between these units, which is crucial for determining the sodium ion transport mechanism.	structure/property correlations; scaling properties; ac conductivity; spectra; resonance; lithium; spectroscopy; system; p-31

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