Repozitorij Univerze v Novi Gorici

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Naslov:Ceramic synthesis of disordered lithium rich oxyfluoride materials
Avtorji:ID Ateba Mba, Jean-Marcel, KI (Avtor)
ID Arčon, Iztok, UNG (Avtor)
ID Mali, Gregor, KI (Avtor)
ID Tchernychova, Elena, KI (Avtor)
ID Witte, Ralf, KIT (Avtor)
ID Kruk, Robert, KIT (Avtor)
ID Gaberšček, Miran, KI (Avtor)
ID Dominko, Robert, KI (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Disordered lithium-rich transition metal oxyfluorides with a general formula Li1þxMO2Fx (M being a transition metal) are gaining more attention due to their high specific capacity which can be delivered from the facecentered cubic (fcc) structure. The most common synthesis procedure involves use of mechanosynthesis. In this work, ceramic synthesis of lithium rich iron oxyfluoride and lithium rich titanium oxyfluoride are reported. Two ceramic synthesis routes are developed each leading to the different level of doping with Li and F and different levels of cationic disorder in the structure. Three different Li1þxMO2Fx samples (x ¼ 0.25, 0.3 and 1) are compared with a sample prepared by mechanochemical synthesis and non-doped LiFeO2 with fcc structure. The obtained lithium rich iron oxyfluoride are characterized by use of M€ossbauer spectroscopy, X-ray absorption spectroscopy, NMR and TEM. Successful incorporation of Li and F have been confirmed and specific capacity that can be obtained from the samples is in the correlation with the level of disorder introduced with doping, nevertheless oxidation state of iron in all samples is very similar. Conclusions obtained from lithium rich iron oxyfluoride are validated by lithium rich titanium oxyfluoride.
Ključne besede:Lithium batteries Face centered-cubic Oxyfluoride Li-rich Disorder
Verzija publikacije:Objavljena publikacija
Leto izida:2020
Št. strani:11
Številčenje:467
PID:20.500.12556/RUNG-5538-a277232d-16bb-ba8b-634a-9a7a59ae591f Novo okno
COBISS.SI-ID:18332163 Novo okno
DOI:10.1016/j.jpowsour.2020.228230 Novo okno
NUK URN:URN:SI:UNG:REP:GWRBSJGR
Datum objave v RUNG:05.06.2020
Število ogledov:4415
Število prenosov:0
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Gradivo je del revije

Naslov:Journal of power sources
Leto izida:2020

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:05.06.2020

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