Polycrystalline samples of VOMoO4 are prepared by a solid-state reaction method and their electrochemical properties are examined in the voltage window 0.005-3 V versus lithium. The reaction mechanism of a VOMoO4 electrode for Li insertion/extraction is followed by ex situ X-ray diffraction analysis. During initial discharge, a large capacity (1280 mAh g(-1)) is observed and corresponds to the reaction of similar to 10.3 Li. The ex situ XRD patterns indicate the formation of the crystalline phase Li4MoO5 during the initial stages of discharge, which transforms irreversibly to amorphous phases on further discharge to 0.005 V. On cycling, the reversible capacity is due to the extraction/insertion of lithium from the amorphous phases. A discharge capacity of 320 mAh g(-1) is obtained after 80 cycles when cycling is performed at a current density of 120 mA g(-1). (C) 2007 Elsevier B.V. All rights reserved.
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Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, MexicoUniv Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, Mexico
Fuentes, AF
Treviño, L
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Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, MexicoUniv Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, Mexico
Treviño, L
Martínez-de la Cruz, A
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Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, MexicoUniv Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, Mexico
Martínez-de la Cruz, A
Torres-Martínez, LM
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Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, MexicoUniv Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, Mexico
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Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, JapanTokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan
Hara, D
Ikuta, H
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Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, JapanTokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan
Ikuta, H
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Uchimoto, Y
Wakihara, M
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Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, JapanTokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan
机构:
Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, MexicoUniv Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, Mexico
Fuentes, AF
Treviño, L
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Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, MexicoUniv Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, Mexico
Treviño, L
Martínez-de la Cruz, A
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Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, MexicoUniv Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, Mexico
Martínez-de la Cruz, A
Torres-Martínez, LM
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Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, MexicoUniv Autonoma Nuevo Leon, Fac Ciencias Quim, Monterrey, Nuevo Leon, Mexico
机构:
Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, JapanTokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan
Hara, D
Ikuta, H
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Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, JapanTokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan
Ikuta, H
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Uchimoto, Y
Wakihara, M
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Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, JapanTokyo Inst Technol, Grad Sch Sci & Engn, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan