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Er-Doped LiMn2O4

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Inorganic Materials Aims and scope

Abstract

LiMn2-x ErxO4 (x ≤ 0.02) materials were synthesized by a rheological phase reaction method. The thermal behavior of the materials was examined by thermogravimetric and differential scanning calorimetry. X-ray diffraction showed that the samples (x ≤ 0.02 ) exhibited the same phase as the pure spinel. The lattice parameter of the Er-doped spinel was smaller than that of the undoped one and decreased with increasing doping level. Cyclic voltammograms showed two reversible processes corresponding to the typical response of spinel LiMn2O4 and revealed an insertion-extraction reaction occurring at two stages in the 4-V region. The electrochemical performances of the samples were studied and displayed a better reversibility and cyclability.

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Authors and Affiliations

  1. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China

    Haowen Liu, Li Song & Kelli Zhang

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  1. Haowen Liu
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  2. Li Song
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  3. Kelli Zhang
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__________

From Neorganicheskie Materialy, Vol. 41, No. 6, 2005, pp. 740–743.

Original English Text Copyright © 2005 by Haowen Liu, Li Song, Kelli Zhang.

This article was submitted by the authors in English.

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Liu, H., Song, L. & Zhang, K. Er-Doped LiMn2O4 . Inorg Mater 41, 646–649 (2005). https://doi.org/10.1007/s10789-005-0183-0

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  • DOI: https://doi.org/10.1007/s10789-005-0183-0

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