H bm 2 O bm 2 -Aided One-Pot Hydrothermal Synthesis of Nanocrystalline LiMn bm 2 O bm 4 Cathode for Lithium Batteries

A simple and H 2 O 2 -aided hydrothermal (HDT) method has been deployed to synthesize nanocrystalline LiMn 2 O 4 at 140 degree C using an in-house-made hydrothermal reaction vessel. Phase pure, highly crystalline, and uniformly distributed nanorods of 100 nm length are obtained from the H 2 O 2 aide...

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Bibliographic Details
Published in:IEEE transactions on nanotechnology 2012-03, Vol.11 (2), p.314-320
Main Authors: Sathiyaraj, K, Bhuvaneswari, Gangulibabu D, Kalaiselvi, N, Peter, AJohn
Format: Article
Language:English
Subjects:
Cathodes
Crystal structure
Diffraction
Lithium
Nanocrystals
Nanorods
Nanotechnology
Synthesis
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Summary:A simple and H 2 O 2 -aided hydrothermal (HDT) method has been deployed to synthesize nanocrystalline LiMn 2 O 4 at 140 degree C using an in-house-made hydrothermal reaction vessel. Phase pure, highly crystalline, and uniformly distributed nanorods of 100 nm length are obtained from the H 2 O 2 aided exothermic oxidation of precursor mix, especially when an excess amount of lithium (Li: Mn as 2:1) is used. The crystalline nature of LiMn 2 O 4 and the growth of nanorods along (111) crystallographic direction are understood from powder x-ray diffraction (PXRD) and selective area electron diffraction (SAED) analysis, respectively. The synthesized cathode exhibited an initial capacity of 118 mAh g - 1 with a slightly higher initial capacity fade (9%) and a progressively stabilized (
ISSN:1536-125X
1941-0085
DOI:10.1109/TNANO.2011.2171359