Synthesis and characterization of LiMn2O4 powders by the combustion-assisted sol–gel technique

Autor:	Zhuo Bing Xiao, Jianben Liu, Xian Ming Wu, Ming You Ma, Wen Bin Yan, Xin Hai Li
Rok vydání:	2004
Předmět:	Thermogravimetric analysis Materials science Scanning electron microscope Lithium acetate Condensed Matter Physics law.invention chemistry.chemical_compound Crystallography Crystallinity chemistry Chemical engineering law General Materials Science Calcination Particle size Thermal analysis Sol-gel
Zdroj:	Materials Chemistry and Physics. 84:182-186
ISSN:	0254-0584
DOI:	10.1016/j.matchemphys.2003.11.020
Popis:	LiMn 2 O 4 powders were prepared by heating the ignited LiMn 2 O 4 precursor gel using lithium acetate, manganese acetate, citric acid and glycol as starting materials. The influence of synthesis conditions on the structural and electrochemical properties of LiMn 2 O 4 was investigated by X-ray diffraction, scanning electron microscopy and charge–discharge experiments. The powders prepared under different conditions are of good crystallinity. The particle size, lattice parameter and the discharge capacity of LiMn 2 O 4 powders increase with the increase of calcination temperature and calcination time. Except for the powder calcined at 750 °C for 1 h, the powders prepared under other conditions show similar cycling behavior.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b6805b41eb10cff6c492ea96af22825d https://doi.org/10.1016/j.matchemphys.2003.11.020 Zobrazit plný text záznamu Full Text from ScienceDirect