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Title: Effect of preparation temperature and cycling voltage range on molten salt method prepared SnO2
Authors: Reddy, M.V. 
Andreea, L.Y.T.
Ling, A.Y.
Hwee, J.N.C.
Lin, C.A.
Admas, S.
Loh, K.P. 
Mathe, M.K.
Ozoemena, K.I.
Chowdari, B.V.R. 
Keywords: Electrochemical properties
Molten salt method
Issue Date: 2013
Citation: Reddy, M.V., Andreea, L.Y.T., Ling, A.Y., Hwee, J.N.C., Lin, C.A., Admas, S., Loh, K.P., Mathe, M.K., Ozoemena, K.I., Chowdari, B.V.R. (2013). Effect of preparation temperature and cycling voltage range on molten salt method prepared SnO2. Electrochimica Acta 106 : 143-148. ScholarBank@NUS Repository.
Abstract: We prepared nano-sized tin (IV) oxide (SnO2) via molten-salt technique: heating a mixture of tin tetrachloride, lithium nitrate and lithium chloride at 280 °C in air. The powders are characterized by X-ray diffraction and transmission scanning microscopy techniques. The XRD studies showed a structure similar to tetragonal structure. The cyclic voltammetry studies showed characteristic cathodic peak potentials of reduction of Sn 4+ to Sn metal in the first cathodic scan, and alloying-de-alloying reaction of Sn at ∼0.25 and ∼0.5 V vs. Li for successive cathodic and anodic scans cycled in the voltage range, 0.005-1.0 V. Galvanostatic cycling studies show that reversible capacities (MSM SnO2 prepared at 280 °C) of 640, 720, 890 mAh g-1 in the voltage range, 0.005-1.0 V, 0.005-1.3 V and 0.005-1.5 V, respectively at a current rate of 100 mA g -1. We also discussed the effect of particle size and its electrochemical properties in the voltage range, 0.005-1.0 V. © 2013 Elsevier Ltd. All rights reserved.
Source Title: Electrochimica Acta
ISSN: 00134686
DOI: 10.1016/j.electacta.2013.05.073
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