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Centrifugally Spun Α-Fe2o3/Tio2/Carbon Composite Fibers As Anode Materials For Lithium-Ion Batteries, Luis Zuniga, Gabriel Gonzalez, Roberto Orrostieta Chavez, Jason C. Myers, Timothy P. Lodge, Mataz Alcoutlabi
Centrifugally Spun Α-Fe2o3/Tio2/Carbon Composite Fibers As Anode Materials For Lithium-Ion Batteries, Luis Zuniga, Gabriel Gonzalez, Roberto Orrostieta Chavez, Jason C. Myers, Timothy P. Lodge, Mataz Alcoutlabi
Mechanical Engineering Faculty Publications and Presentations
We report results on the electrochemical performance of flexible and binder-free α-Fe2O3/TiO2/carbon composite fiber anodes for lithium-ion batteries (LIBs). The composite fibers were produced via centrifugal spinning and subsequent thermal processing. The fibers were prepared from a precursor solution containing PVP/iron (III) acetylacetonate/titanium (IV) butoxide/ethanol/acetic acid followed by oxidation at 200 °C in air and then carbonization at 550 °C under flowing argon. The morphology and structure of the composite fibers were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), …
Fabrication And Characterization Of Centrifugally Spun Poly(Acrylic Acid) Nanofibers, David De La Garza, Francisco De Santiago, Luis Materon, Mircea Chipara, Mataz Alcoutlabi
Fabrication And Characterization Of Centrifugally Spun Poly(Acrylic Acid) Nanofibers, David De La Garza, Francisco De Santiago, Luis Materon, Mircea Chipara, Mataz Alcoutlabi
Mechanical Engineering Faculty Publications and Presentations
The production of poly(acrylic acid) (PAA) nanofibers by the centrifugal spinning of PAA solutions in water is reported. The effect of the spinneret rotational speed and concentration of PAA solutions on the diameter of nanofibers and on their quality (assessed by the absence of beads) is discussed. The main physical properties of PAA such as glass-transition temperature (Tg) are studied in detail and compared to the feature of the as-received homopolymer. It is shown that the glass-transition temperature of the bulk PAA and PAA nanofibers (as measured by differential scanning calorimetry) depends on the heating rate according …