FTIR spectroscopy of metal oxide insertion materials: Analysis of LixMn2O4 spinel electrodes

FTIR spectroscopy of metal oxide insertion materials: Analysis of LixMn2O4 spinel electrodes

TitleFTIR spectroscopy of metal oxide insertion materials: Analysis of LixMn2O4 spinel electrodes
Publication TypeJournal Article
Year of Publication1997
AuthorsThomas J Richardson, Shi-Jie Wen, Kathryn A Striebel, Philip N Ross, Elton J Cairns
JournalMaterials Research Bulletin
Volume32
Issue5
Pagination609-618
Date Published05/1997
ISSN00255408
Keywordsenergy storage, infrared spectroscopy, oxides, phase transitions
Abstract

Fourier transform infrared (FTIR) spectra were obtained from spinel-type lithium manganese oxides of composition LixMn2O4 with 0 < x < 2.4, prepared by both chemical and electrochemical means. Each phase in this system has a distinct spectrum which is characteristic of the local (shortrange) structure. Mixtures of phases were analyzed using the method of scaled absorbance subtraction. The results correlate well with previously reported XRD and neutron diffraction analyses as well as with phase behavior indicated by electrochemical measurements. FTIR spectroscopy thus provides both qualitative and quantitative information and is shown to be an effective companion technique to X-ray diffraction.

DOI10.1016/S0025-5408(97)00022-6
Short TitleMaterials Research Bulletin