Proton insertion and lithium-proton exchange in spinel lithium manganates

被引：70

作者：

Ammundsen, B ^{[1
]}

Aitchison, PB ^{[1
]}

Burns, GR ^{[1
]}

Jones, DJ ^{[1
]}

Roziere, J ^{[1
]}

机构：

[1] VICTORIA UNIV WELLINGTON,DEPT CHEM,WELLINGTON,NEW ZEALAND

来源：

SOLID STATE IONICS | 1997年 / 97卷 / 1-4期

关键词：

spinel; lithium manganate; proton insertion; vibrational spectroscopy; INELASTIC NEUTRON-SCATTERING; MANGANESE OXIDES; LAMBDA-MNO2; REDUCTION; ELECTRODE; MECHANISM; LIMN2O4; DIOXIDE; SYSTEM; CELLS;

D O I：

10.1016/S0167-2738(97)00065-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The protonic species formed in spinel lambda-MnO2 by proton exchange for lithium ions in Li1+xMn2-xO4 precursors have been characterised by infrared and inelastic neutron scattering spectroscopies. Proton diffusion into the lattice appears to depend on the presence of octahedral manganese vacancies, with formation of lattice hydroxyl co-existing with water. Mechanisms of proton transfer are considered in relation to lithium-proton exchange during reinsertion of lithium into the materials, and for insertion of additional protons by chemical reduction.

引用

页码：269 / 276

页数：8

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