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Title: Li-cycling properties of molten salt method prepared nano/submicrometer and micrometer-sized CuO for lithium batteries
Authors: Reddy, M.V. 
Yu, C.
Jiahuan, F.
Loh, K.P. 
Chowdari, B.V.R. 
Keywords: CuO
electrochemical properties
Li-ion batteries
molten salt method
Issue Date: 22-May-2013
Citation: Reddy, M.V., Yu, C., Jiahuan, F., Loh, K.P., Chowdari, B.V.R. (2013-05-22). Li-cycling properties of molten salt method prepared nano/submicrometer and micrometer-sized CuO for lithium batteries. ACS Applied Materials and Interfaces 5 (10) : 4361-4366. ScholarBank@NUS Repository.
Abstract: We report the synthesis of CuO material by molten salt method at a temperature range, 280 to 950 C for 3 h in air. This report includes studies on the effect of morphology, crystal structure and electrochemical properties of CuO prepared at different temperatures. Obtained CuO was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett- Teller (BET) surface area methods. Samples prepared at ≥410 °C showed a single-phase material with a lattice parameter value of a = 4.69 Å, b = 3.43 Å, c = 5.13 Å and surface area values are in the range 1.0-17.0 m2 g-1. Electrochemical properties were evaluated via cyclic voltammetry (CV) and galvanostatic cycling studies. CV studies showed a minor difference in the peak potentials depending on preparation temperature and all compounds exhibit a main anodic peak at ∼2.45 V and cathodic peaks at ∼0.85 V and ∼1.25 V vs Li. CuO prepared at 750 °C showed high and stable capacity of ∼620 mA h g-1 at the end of 40th cycle. © 2013 American Chemical Society.
Source Title: ACS Applied Materials and Interfaces
ISSN: 19448244
DOI: 10.1021/am400579q
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