XPS and Raman spectroscopic characterization of LiMn2O4 spinels

被引：220
|
作者：
Ramana, CV
Massot, M
Julien, CM
机构：
[1] Montana State Univ, Dept Phys, Surface Sci Ion Beam Lab, Bozeman, MT 59717 USA
[2] Univ Paris 06, LPMC, F-75252 Paris, France
[3] Univ Paris 06, LMDH, F-75015 Paris, France
来源：
SURFACE AND INTERFACE ANALYSIS | 2005年 / 37卷 / 04期
关键词：
manganese oxides; spinel; lithium batteries; XPS; Raman scattering; LITHIUM BATTERIES; MANGANESE OXIDES;
D O I：
10.1002/sia.2022
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Surface analysis of lithium manganese oxides synthesized by the melt-impregnation method has been made by x-ray photoelectron spectroscopy. These results revealed the change in the average oxidation state of Mn cations upon lithium substitution in Li1+deltaMn2-deltaO4 spinels. Studies of the local structure characterized by Raman scattering show the Mn-O bonding evolution as a function of the replacement of manganese cations. Modification in the trigonal distortion of MnO6 octahedra is evidenced by insertion of lithium ions into the octahedral holes of the [B-2]O-4 spinel framework. Copyright (c) 2005 John Wiley S Sons, Ltd.
引用
收藏
页码：412 / 416
页数：5
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