TY - JOUR KW - Energy storage KW - Oxides KW - Phase transitions KW - Infrared spectroscopy AU - Thomas J Richardson AU - Shi-Jie Wen AU - Kathryn A Striebel AU - Philip N Ross AU - Elton J Cairns AB -

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.

BT - Materials Research Bulletin DA - 05/1997 DO - 10.1016/S0025-5408(97)00022-6 IS - 5 N2 -

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.

PY - 1997 SP - 609 EP - 618 ST - Materials Research Bulletin T2 - Materials Research Bulletin TI - FTIR spectroscopy of metal oxide insertion materials: Analysis of LixMn2O4 spinel electrodes VL - 32 SN - 00255408 ER -