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Myers, Jason C.
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Publications (5/5 displayed)
- 2023Preparation of SnO2/TiO2/C composite fibres and their use as binder-free anodes for lithium-ion batteriescitations
- 2021Diffusion-Driven Exfoliation of Magneto-Optical Garnet Nanosheetscitations
- 2021Performance and morphology of centrifugally spun Co3O4/C composite fibers for anode materials in lithium-ion batteriescitations
- 2019Centrifugally spun α-Fe2O3/TiO2/carbon composite fibers as anode materials for lithium-ion batteriescitations
- 2015Accelerating reactive compatibilization of PE/PLA blends by an interfacially localized catalystcitations
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article
Preparation of SnO2/TiO2/C composite fibres and their use as binder-free anodes for lithium-ion batteries
Abstract
<p>Tin dioxide/titanium dioxide/flexible and carbon fibres ((SnO<sub>2</sub>/TiO<sub>2</sub>)/FPCFs) were fabricated via centrifugal spinning (CS) of precursor solutions and used as binder-free anode materials in lithium-ion batteries (LIBs). The SnO<sub>2</sub>/TiO<sub>2</sub>/FPCFs were prepared by CS of tin (II) 2-ethylhexanoate/titanium (IV) butoxide/polyvinylpyrrolidone, followed by calcination at 700°C to yield SnO<sub>2</sub>/TiO<sub>2</sub> short fibres. The as-obtained fibres were crushed and mixed in ethanol to form a SnO<sub>2</sub>/TiO<sub>2</sub>/ethanol solution. Polyacrylonitrile/polymethyl methacrylate (PAN/PMMA) fibrous mats were also prepared via CS of PAN/PMMA/DMF solutions and were coated with the SnO<sub>2</sub>/TiO<sub>2</sub>/ethanol solution and then heat-treated to yield SnO<sub>2</sub>/TiO<sub>2</sub>/FPCFs. The structure and morphology of the composite fibres were investigated by scanning electron microscope, energy dispersive X-ray spectrometer), transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and thermogravimetric analysis. When used as binder-free anodes for LIBs, the (3:2) (SnO<sub>2</sub>:TiO<sub>2</sub>)/FPCFs exhibited a high reversible capacity of 890 mAh g<sup>−1</sup> and demonstrated an outstanding columbic efficiency of 98% after 100 charge/discharge cycles at a current density of 100 mAh g<sup>−1</sup> and good rate capability. For comparison, the electrochemical results of (SnO<sub>2</sub>)/FPCFs and (SnO<sub>2</sub>/TiO<sub>2</sub>)/FPCFs with 1:1 (SnO<sub>2</sub>:TiO<sub>2</sub>) ratio are also reported.</p>