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|Title:||Li-storage and cyclability of urea combustion derived ZnFe2O4 as anode for Li-ion batteries||Authors:||Sharma, Y.
|Issue Date:||1-Jan-2008||Citation:||Sharma, Y., Sharma, N., Rao, G.V.S., Chowdari, B.V.R. (2008-01-01). Li-storage and cyclability of urea combustion derived ZnFe2O4 as anode for Li-ion batteries. Electrochimica Acta 53 (5) : 2380-2385. ScholarBank@NUS Repository. https://doi.org/10.1016/j.electacta.2007.09.059||Abstract:||The cubic ZnFe2O4 with the spinel structure is prepared by the urea combustion method. Powder X-ray diffraction and HR-TEM studies confirm the single-phase nature with particle size in the range, 100-300 nm. A stable and reversible capacity, 615(±10) mAh g-1 (5.5 moles of Li per mole of ZnFe2O4) when cycled in the range, 0.005-3.0 V vs. Li at a current of 60 mA g-1(0.1C) has been achieved between 15 and 50 cycles. The underlying reaction mechanism contributing to the observed capacity is the combination of 'de-alloying-alloying' and 'conversion' reactions of 'LiZn-Fe-Li2O composite'. Ex situ HR-TEM and SAED data on the charged-electrode confirmed the proposed reaction mechanism. © 2007 Elsevier Ltd. All rights reserved.||Source Title:||Electrochimica Acta||URI:||http://scholarbank.nus.edu.sg/handle/10635/97069||ISSN:||00134686||DOI:||10.1016/j.electacta.2007.09.059|
|Appears in Collections:||Staff Publications|
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