Surfactant-assisted synthesis of porous TiO2 nanofibers as an anode material for secondary lithium ion batteries

摘要: An optimized amount of cetyltrimethylammonium bromide (CTAB) as a surfactant was used for the first time to fabricate porous TiO2 nanofibers by an electrospinning technique combined with post-annealing at 500 °C 5 h in air medium. The fabricated were systematically characterized powder X-ray diffraction, scanning electron microscopy, transmission surface area measurements and electrochemical testing. contained numerous pores average diameter ∼80–90 nm. As anode, nanofiber electrode delivered not only high reversible capacity excellent cycle stability over 100 cycles but also rate capability various current rates comparison control (prepared absence CTAB). rapid transportation lithium ions reduced ion diffusion length probably are responsible improved performances synthesized presence CTAB surfactant.