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Title: Electrospun α-Fe2O3 nanorods as a stable, high capacity anode material for Li-ion batteries
Authors: Cherian, Christie T.
Sundaramurthy, Jayaraman
Kalaivani, M.
Ragupathy, P.
Kumar, Palaniswamy Suresh
Thavasi, V.
Reddy, M. V.
Sow, Chorng Haur
Mhaisalkar, Subodh Gautam
Ramakrishna, Seeram
Chowdari, Bobba V. R.
Issue Date: 2012
Source: Cherian, C. T., Sundaramurthy, J., Kalaivani, M., Ragupathy, P., Kumar, P. S., Thavasi, V., et al. (2012). Electrospun α-Fe2O3 nanorods as a stable, high capacity anode material for Li-ion batteries. Journal of materials chemistry, 22(24), 12198-12204.
Series/Report no.: Journal of materials chemistry
Abstract: α-Fe2O3 nanorods are synthesized by electrospinning of polyvinylpyrrolidone (PVP)/ferric acetyl acetonate (Fe(acac)3) composite precursors and subsequent annealing at 500 °C for 5 h. X-ray diffraction and Raman spectroscopy analyses confirm the formation of a hematite structure as the predominant phase. The electron microscopy studies show that the electrospun α-Fe2O3 nanorods are composed of agglomerates of nano-sized particles and the average diameter of the nanorods is found to be 150 nm. Li-storage and cycling properties are examined by galvanostatic cycling in the voltage range 0.005–3 V vs. Li at various current densities and it is complemented by cyclic voltammetry. The electrospun α-Fe2O3 nanorods exhibit a high reversible capacity of 1095 mA h g−1 at 0.05 C, are stable up to 50 cycles and also show high rate capability, up to 2.5 C. The high rate capability and excellent cycling stability can be attributed to the unique morphology of the macroporous nanorods comprised of inter-connected nano-sized particles, thus making electrospun α-Fe2O3 a promising anode material for Li-ion batteries.
DOI: 10.1039/c2jm31053h
Rights: © 2012 Royal Society of Chemistry.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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