Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.electacta.2009.12.095
DC Field | Value | |
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dc.title | Preparation and electrochemical studies of electrospun TiO2 nanofibers and molten salt method nanoparticles | |
dc.contributor.author | Reddy, M.V. | |
dc.contributor.author | Jose, R. | |
dc.contributor.author | Teng, T.H. | |
dc.contributor.author | Chowdari, B.V.R. | |
dc.contributor.author | Ramakrishna, S. | |
dc.date.accessioned | 2014-10-07T09:09:30Z | |
dc.date.available | 2014-10-07T09:09:30Z | |
dc.date.issued | 2010-03-30 | |
dc.identifier.citation | Reddy, M.V., Jose, R., Teng, T.H., Chowdari, B.V.R., Ramakrishna, S. (2010-03-30). Preparation and electrochemical studies of electrospun TiO2 nanofibers and molten salt method nanoparticles. Electrochimica Acta 55 (9) : 3109-3117. ScholarBank@NUS Repository. https://doi.org/10.1016/j.electacta.2009.12.095 | |
dc.identifier.issn | 00134686 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/85566 | |
dc.description.abstract | The TiO2 nanofibers and nanoparticles are prepared by electrospinning and molten salt method, respectively. The materials are characterized by X-ray diffraction scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM) and a thermal analysis. The SEM and TEM studies showed that fibers were of average diameter ∼100 nm and composed of nanocrystallites of size 10-20 nm. Electrochemical properties of the materials are evaluated using cyclic voltammetry, galvanostatic cycling and electrochemical impedance spectroscopy. Cyclic voltammetric studies show a hysteresis (ΔV) between the cathodic and the anodic peak potentials for TiO2 nanofibers and nanoparticles (sizes ∼15-30 nm) are in the range, 0.23-0.30 V and a redox couple Ti4+/3+ around ∼1.74/2.0 V. Electrochemical cycling results revealed that the TiO2 nanofibers have lower capacity fading compared to that of the nanoparticles. The capacity fading for 2-50 cycles was ∼23% for nanofibers, which was nearly one-third of that of corresponding nanoparticles (∼63%). We discussed the effect of particle size on hysteresis and cycling performance of TiO2 nanoparticles. Impedance analysis of TiO2 nanofibers and nanoparticles during first discharge cycle is analyzed and interpreted. © 2010 Elsevier Ltd. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.electacta.2009.12.095 | |
dc.source | Scopus | |
dc.subject | Electrochemical properties | |
dc.subject | Electrospunning | |
dc.subject | Lithium batteries | |
dc.subject | Molten salt method | |
dc.subject | Nanofibers | |
dc.subject | Nanoparticles | |
dc.subject | Titanium dioxide | |
dc.type | Article | |
dc.contributor.department | NUS NANOSCIENCE & NANOTECH INITIATIVE | |
dc.contributor.department | PHYSICS | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1016/j.electacta.2009.12.095 | |
dc.description.sourcetitle | Electrochimica Acta | |
dc.description.volume | 55 | |
dc.description.issue | 9 | |
dc.description.page | 3109-3117 | |
dc.description.coden | ELCAA | |
dc.identifier.isiut | 000276757500012 | |
Appears in Collections: | Staff Publications |
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