Hierarchical rutile TiO2 with mesocrystalline structure for Li-ion and Na-ion storage

Rutile TiO2 nanobundles on reduced graphene oxides as anode materials for Li ion batteries.

A simple and steerable method was adopted to synthesize well-distributed rutile TiO2 nanobundles on reduced graphene oxides through two-step hydrothermal methods. The rutile TiO2-RGO composites were used as the anode materials in lithium ion batteries for investigation, which had an original morphology and a reversible capacity of 300 mA h g(-1) at 0.6 C and 200 mA h g(-1) at 1.2 C after 500 cy...

Hierarchical Li4Ti5O12/TiO2 composite tubes with regular structural imperfection for lithium ion storage

Hierarchical Li4Ti5O12/TiO2 tubes composed of ultrathin nanoflakes have been successfully fabricated via the calcination of the hydrothermal product of a porous amorphous TiO2 precursor and lithium hydroxide monohydrate. The hierarchical tubes are characterized by powder X-ray diffraction, nitrogen adsorption/desorption, scanning electron microscopy and transmission electron microscopy techniqu...

Microemulsion-mediated sol-gel synthesis of mesoporous rutile TiO2 nanoneedles and its performance as anode material for Li-ion batteries.

Mesoporous rutile TiO(2) nanoneedles have been successfully synthesized using a reverse microemulsion-mediated sol-gel method at room temperature. The materials were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and the Bruauner-Emmet-Teller (BET) adsorption method, and their electrochemical properties were investigated by galvanostatic charge and discharge t...

Application of silicene, germanene and stanene for Na or Li ion storage: A theoretical investigation

Silicene, germanene and stanene likely to graphene are atomic thick material with interesting properties. We employed first-principles density functional theory (DFT) calculations to investigate and compare the interaction of Na or Li ions on these films. We first identified the most stable binding sites and their corresponding binding energies for a single Na or Li adatom on the considered mem...

Todorokite-type manganese oxide nanowires as an intercalation cathode for Li-ion and Na-ion batteries