Hydrothermal synthesis and electrochemistry of a δ-type manganese vanadium oxide

被引：43
作者：
Zhang, F
Whittingham, MS [1 ]
机构：
[1] SUNY Binghamton, Mat Res Ctr, Binghamton, NY 13902 USA
[2] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2000年 / 2卷 / 01期
基金：
美国国家科学基金会;
关键词：
hydrothermal synthesis; vanadium oxide; manganese; lithium cathodes; delta sheets;
D O I：
10.1016/S1388-2481(99)00143-5
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A new manganese vanadium oxide containing double sheets of V2O5 layers has been synthesized hydrothermally in the presence of tetramethylammonium ions. It has the electrochemically active delta-V2O5 structure, variants of which are found in V6O13 and xerogel vanadium oxides. The manganese ions, together with the N(CH3)(4) ions, reside in a disordered manner between the oxide sheets. The delta-type [N(CH3)(4)](z)MnyV2O5. nH(2)O has a monoclinic structure, a =11.66(2) Angstrom, b = 3.610(9) Angstrom, c = 13.91(4) Angstrom, beta = 108.8(2)degrees. It reacts readily with lithium with a capacity exceeding 220 mAh g(-1); the organic ions do not impede reaction as in the single sheet V2O5 materials, such as N(CH3)(4)V3O7. (C) 2000 Elsevier Science S.A. All rights reserved.
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页码：69 / 71
页数：3
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