Kim, Jae-Hun Zhu, Kai Kim, Jin Young Frank, Arthur J. 2024-01-20T13:03:38Z 2024-01-20T13:03:38Z 2021-09-01 2013-01-15 0013-4686 https://pubs.kist.re.kr/handle/201004/128452 We report on the syntheses of oriented TiO2 nanotube (NT) arrays having different geometries and the electrochemical properties as electrodes for lithium rechargeable batteries. The morphology of the NT arrays, which were prepared by electrochemical anodization of Ti foil, is investigated by scanning electron microscopy. X-ray diffraction analysis indicates that annealing the as-grown NT films at a temperature of 400 degrees C transforms them from an amorphous phase to anatase TiO2. Analyses of cyclic voltammograms indicate that there is significant capacitive Li+ storage associated with the NT surface in addition to the Li+ storage within the bulk material. The NT morphological parameters (e.g. pore diameter, wall thickness, and roughness factor) are found to have significant effects on the Li-ion insertion/extraction kinetics and the performance of the electrodes in lithium-ion batteries. (C) 2012 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD LITHIUM INSERTION ENERGY-STORAGE ANATASE TIO2 ELECTRODE INTERCALATION PERFORMANCE ARRAYS SIZE Tailoring oriented TiO2 nanotube morphology for improved Li storage kinetics Article 10.1016/j.electacta.2012.10.013 1 ELECTROCHIMICA ACTA, v.88, pp.123 - 128 ELECTROCHIMICA ACTA 88 123 128 scie scopus 000315076300018 2-s2.0-84870200112 Electrochemistry Electrochemistry Article LITHIUM INSERTION ENERGY-STORAGE ANATASE TIO2 ELECTRODE INTERCALATION PERFORMANCE ARRAYS SIZE TiO2 Nanotube Anodization Li storage kinetics Li-ion battery