Synthesis of β-MoO3 by vacuum drying and its structural and electrochemical characterisation

Beta-MoO3 was obtained free of alpha-MoO3 through soft chemistry methods. The formation of beta-MoO3 with high purity was determined by the formation of the precursor MoO3.2H2O when a solution of Na2MoO4.2H2O was passed through a cation-exchange resin. A structural, spectroscopic and thermal study o...

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Veröffentlicht in:	Materials letters 2003, Vol.57 (5-6), p.1034-1039
Hauptverfasser:	JUAREZ RAMIREZ, I, MARTINEZ-DE LA CRUZ, A
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Direct energy conversion and energy accumulation Electrical engineering. Electrical power engineering Electrical power engineering Electrochemical conversion: primary and secondary batteries, fuel cells Exact sciences and technology
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Zusammenfassung:	Beta-MoO3 was obtained free of alpha-MoO3 through soft chemistry methods. The formation of beta-MoO3 with high purity was determined by the formation of the precursor MoO3.2H2O when a solution of Na2MoO4.2H2O was passed through a cation-exchange resin. A structural, spectroscopic and thermal study of the polymorph synthesised was made by XRD, electron dispersion spectroscopy, FTIR and TGA/DTA techniques, respectively, in order to study the possibilities of beta-MoO3 as active material in a lithium battery. Electrochemical experiments showed a high ability of the beta-MoO3 to form lithium molybdenum bronzes via a lithium insertion reaction. 15 refs.
ISSN:	0167-577X 1873-4979
DOI:	10.1016/s0167-577x(02)00920-5