Effect of magnesium substitution on structural and dielectric properties of LiNiPO4
Published Online: Feb 24, 2017
Page range: 66 - 80
Received: Mar 31, 2016
Accepted: Nov 28, 2016
DOI: https://doi.org/10.1515/msp-2017-0008
Keywords
© 2017 K. Anand, B. Ramamurthy, V. Veeraiah, K. Vijaya Babu
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The aim of this paper is to study the effect of Mg2+ doping in place of Ni in LiNiPO4 compounds synthesized by solid state reaction method. As Mg is a relatively light and cheap, and is expected to stabilize the structure, it has been considered as a substituent for Ni. The structural and conductivity studies of the substituted phases are discussed in comparison with LiNiPO4. In this study, we have proposed cation-substituted compounds, LiNi1–xMgxPO4 (x = 0, 0.05, 0.1 and 0.15) where a part of the divalent state of Ni2+ is replaced with the corresponding amount of Mg2+ and where the charge compensation is maintained by lithium deficiency. It is possible to obtain the mentioned compounds because the pristine LiNiPO4 compound is stable in ambient atmosphere, which differs considerably from the LiCoPO4 compound.