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- W2331278850 endingPage "690" @default.
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- W2331278850 abstract "The compounds, CoN, CoO, and Co3O4 were prepared in the form of nano-rod/particles and we investigated the Li-cycling properties, and their use as an anode material. The urea combustion method, nitridation, and carbothermal reduction methods were adopted to prepare Co3O4, CoN, and CoO, respectively. X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and the Brunauer–Emmett–Teller (BET) surface and density methods were used to characterise the materials. Cyclic voltammetry (CV) was performed and galvanostatic cycling tests were also conducted up to 60–70 cycles. The observed reversible capacity of all compounds is of the increasing order CoO, Co3O4, CoN and all compounds showed negligible capacity fading. CoO allows for Li2O and Co metal to form during the discharge cycle, allowing for a high theoretical capacity of 715 mA h g–1. Co3O4 allows for 4 Li2O and 3Co to form, and has a theoretical capacity of 890 mAhg-1. CoN is the best anode material of the three because the nitrogen allows for Li3N and Co to form, resulting in an even higher theoretical capacity of 1100 mAhg-1 due to the Li3N and Co metal formation. Irrespective of morphology the charge profiles of all three compounds showed a major plateaux ∼2.0 V vs. Li and potential values are almost unchanged irrespective of crystal structure. Electrochemical impedance spectroscopy (EIS) was performed to understand variation resistance and capacitance values." @default.
- W2331278850 created "2016-06-24" @default.
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- W2331278850 creator A5040623340 @default.
- W2331278850 creator A5047127965 @default.
- W2331278850 creator A5075710094 @default.
- W2331278850 date "2013-12-26" @default.
- W2331278850 modified "2023-10-14" @default.
- W2331278850 title "Li Storage and Impedance Spectroscopy Studies on Co<sub>3</sub>O<sub>4</sub>, CoO, and CoN for Li-Ion Batteries" @default.
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- W2331278850 doi "https://doi.org/10.1021/am4047552" @default.
- W2331278850 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24325322" @default.
- W2331278850 hasPublicationYear "2013" @default.
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