Ionic Conductivity of Lithium Germanium Phosphate Glass-Ceramics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914969" target="_blank" >RIV/00216275:25310/19:39914969 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acs.jpcc.9b03666" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.jpcc.9b03666</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpcc.9b03666" target="_blank" >10.1021/acs.jpcc.9b03666</a>
Alternative languages
Result language
angličtina
Original language name
Ionic Conductivity of Lithium Germanium Phosphate Glass-Ceramics
Original language description
In this study, the effect of induced crystallization on the electrical transport was studied in the mixed glass former glasses with the composition 40Li(2)O-(60 - x)P2O5-xGeO(2), x = 0-25 mol %, as potential solid electrolytes for Li-ion batteries. It has been of interest to investigate how various steps of crystallization influence electrical transport in prepared glass-ceramics. Structural properties of obtained glass-ceramics, which contain single to multicrystalline phases, are characterized by XRD, MAS NMR, and SEM and then correlated with electrical properties studied using impedance spectroscopy. For GeO2-free glass-ceramics, a slight increase in the electrical conductivity is evidenced, whereas a conductivity decrease for glass-ceramics containing up to 20 mol % GeO2 is related to the reduction of a number of lithium ions in the residual glassy phase, since the LiPO3 crystalline phase is formed. The crystallization in the glass-ceramics with higher GeO2 content causes an increase in the electrical conductivity. This increase is a result of two simultaneous contributions. One is the formation of crystallites with well-defined shapes, which creates easy conduction pathways for lithium ion transport within crystalline grains and along crystalline grain boundaries. And the second one is the increase of the predominantly phosphate amorphous phase for samples Ge-25.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
<a href="/en/project/GA18-01976S" target="_blank" >GA18-01976S: New prospective phosphate and borophosphate glasses and glass-ceramics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry C
ISSN
1932-7447
e-ISSN
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Volume of the periodical
123
Issue of the periodical within the volume
38
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
23312-23322
UT code for WoS article
000488334700004
EID of the result in the Scopus database
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