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$Li_2MTiO_4$(M=Mn, Fe, Co, Ni):New cation-disordered rocksalt oxides exhibiting oxidative deintercalation of lithium. Synthesis of an ordered $Li_2NiTiO_4$

Sebastian, Litty and Gopalakrishnan, J (2003) $Li_2MTiO_4$(M=Mn, Fe, Co, Ni):New cation-disordered rocksalt oxides exhibiting oxidative deintercalation of lithium. Synthesis of an ordered $Li_2NiTiO_4$. In: Journal of Solid State Chemistry, 172 (1). pp. 171-177.

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Abstract

We describe the synthesis and characterization of a new series of oxides, $Li_2MtiO_4$ (M=Mn, Fe, Co, Ni) that crystallize in the rocksalt structure. For M=Ni, we have also obtained a low-temperature modification that adopts a $Li_2SnO_3$-type structure. All the phases, excepting M=Ni, undergo oxidative deinsertion of lithium in $air/O_2$ at elevated temperatures (>150°C), yielding $Li_2MtiO_4$ (M=Mn, Fe) spinels and a spinel-like $Li_{1+x}CoTiO_4$ as final products.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 01 Jun 2006
Last Modified: 19 Sep 2010 04:28
URI: http://eprints.iisc.ernet.in/id/eprint/7278

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