Synthesis of nanostructured Li3Me2(PO4)2F3 glass-ceramics (Me = V, Fe, Ti)

Tomasz Pietrzak , Przemysław Piotr Michalski , Marek Wasiucionek , Jerzy Garbarczyk

Abstract

The aim of this research was to synthesize high-conducting nanostructured fluorophosphate materials starting from LiF-Me2O3-P2O5 (Me = V, Fe, Ti) glasses, whose nominal composition was close to that of the polycrystalline Li3Me2(PO4)2F3. All the compositions under study which contained up to 0.5 Fe per nominal formula were synthesized initially in amorphous state. Their thermal treatment led to significant changes in their electric conductivity. The best conducting sample (σ(25 °C) = 1.7 × 10- 3 S/cm) was the one of composition Li3V2(PO4)2F3 after nanocrystallization at 500 °C. The average crystallite size was 75 nm. Two factors are the most important for the efficiency of the electrical conductivity of the nanostructured materials under consideration: a high concentration and a short average distance between hopping centers (i.e. aliovalent V, Fe or Ti ions). © 2015 Elsevier B.V. All rights reserved.
Author Tomasz Pietrzak ZJCS
Tomasz Pietrzak,,
- Solid State Ionics Division
, Przemysław Piotr Michalski ZJCS
Przemysław Piotr Michalski,,
- Solid State Ionics Division
, Marek Wasiucionek ZJCS
Marek Wasiucionek,,
- Solid State Ionics Division
, Jerzy Garbarczyk ZJCS
Jerzy Garbarczyk,,
- Solid State Ionics Division
Journal seriesSolid State Ionics, ISSN 0167-2738
Issue year2016
Vol288
Pages193-198
Publication size in sheets0.5
Keywords in EnglishAmorphous materials; Cathodes; Ceramic materials; Crystallite size; Electric conductivity; Electric conductivity measurement; Lithium; Polycrystalline materials, Average Distance; Cath-ode materials; Conductivity enhancement; Electrical conductivity; Electron hopping; Nanostructured glass-ceramics; Nominal composition; Polycrystalline, Glass ceramics
DOIDOI:10.1016/j.ssi.2015.11.021
URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-84950147598&partnerID=40&md5=71a9c802dae39cf3fc820273e8bd92ef
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 30.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.354 (2) - 2016=2.438 (5)
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