Article (Scientific journals)
Effect of freeze-drying and self-ignition process on the microstructural and electrochemical properties of Li4Ti5O12
Jamin, Claire; Traina, Karl; Eskenazi, David et al.
2013In Materials Research Bulletin, 48, p. 4641-4646
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Abstract :
[en] Crystalline Li4Ti5O12 is synthesized by a method involving the freeze-drying and self-ignition of a gel prepared from titanium isopropoxide, lithium nitrate and hydroxypropylmethylcellulose (HPMC). This synthesis route yields crystalline Li4Ti5O12 particles after calcination at 800°C for 2 h. In an alternative route, addition of ammonium nitrate shifts the self-ignition mode from wave-like propagation to simultaneous. Powders with different microstructures are thereby obtained. Electrochemical characterization shows that the best results for Li+ intercalation/desintercalation are obtained for the powder prepared without ammonium nitrate addition. These results highlight the necessity for a control of the self-ignition mode to obtain adequate properties.
Disciplines :
Chemistry
Author, co-author :
Jamin, Claire ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Traina, Karl ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Eskenazi, David ;  Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique
Krins, Natacha ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Cloots, Rudi ;  Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Vertruyen, Bénédicte  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Boschini, Frédéric ;  Université de Liège - ULiège > Département de chimie (sciences) > Plateforme APTIS et LCIS - GreenMAT
Language :
English
Title :
Effect of freeze-drying and self-ignition process on the microstructural and electrochemical properties of Li4Ti5O12
Publication date :
2013
Journal title :
Materials Research Bulletin
ISSN :
0025-5408
Publisher :
Elsevier Science, Oxford, United Kingdom
Volume :
48
Pages :
4641-4646
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Nanobat
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
DGTRE - Région wallonne. Direction générale des Technologies, de la Recherche et de l'Énergie [BE]
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