Adipic acid assisted sol–gel synthesis of Li2MnSiO4 nanoparticles with improved lithium storage properties

V. Aravindan; K. Karthikeyan; S. Ravi; S. Amaresh; W. S. Kim; Y. S. Lee

doi:10.1039/C0JM01635G

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Adipic acid assisted sol–gel synthesis of Li₂MnSiO₄nanoparticles with improved lithiumstorage properties

V. Aravindan,†^a K. Karthikeyan,^a S. Ravi,^b S. Amaresh,^a W. S. Kim^c and Y. S. Lee*^a

Author affiliations

* Corresponding authors

^a Faculty of Applied Chemical Engineering, Chonnam National University, Gwang-ju, South Korea
E-mail: leeys@chonnam.ac.kr

^b Department of Physics, Mepco Schlenk Engineering College, Sivakasi, India

^c Dajung EM Co. Ltd., Incheon 405-820, Korea

Abstract

An adipic acid assisted sol–gel route was employed to prepare phase pure Li₂MnSiO₄ under the optimized conditions. Powder X-ray diffraction measurements confirm the formation of orthorhombic Li₂MnSiO₄ with Pmn2₁ space group. The oxidation state of Mn(II) was confirmed by electron paramagnetic resonance (EPR) studies. FTIR study was conducted to ensure the formation of a tetrahedral SiO₄ group. Morphological features confirmed the appearance of evenly dispersed Li₂MnSiO₄ spherical nanoparticles with size of ∼30 nm. The Li/Li₂MnSiO₄ cell was constructed to study the electrochemical performance of Li₂MnSiO₄ nanoparticles and the cell delivers a stable discharge capacity profile (∼125 mAh g⁻¹) for observed 50 cycles.

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Article information

DOI: https://doi.org/10.1039/C0JM01635G
Article type: Communication
Submitted: 28 May 2010
Accepted: 15 Jul 2010
First published: 06 Aug 2010

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J. Mater. Chem., 2010,20, 7340-7343

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Adipic acid assisted sol–gel synthesis of Li₂MnSiO₄ nanoparticles with improved lithium storage properties

V. Aravindan, K. Karthikeyan, S. Ravi, S. Amaresh, W. S. Kim and Y. S. Lee, J. Mater. Chem., 2010, 20, 7340 DOI: 10.1039/C0JM01635G

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Journal of Materials Chemistry