Facile Synthesis of Anatase TiO₂ Quantum‐Dot/Graphene‐Nanosheet Composites with Enhanced Electrochemical Performance for Lithium‐Ion Batteries

Ultrathin Anatase TiO2 Nanosheets Embedded with TiO2‐B Nanodomains for Lithium‐Ion Storage: Capacity Enhancement by Phase Boundaries

“…[ 4,5 ] To solve these problems, various strategies have been conducted to improve its electronic conductivity and lithium diffusion capability, including optimizing particle size to nano scale, [ 2,20,21 ] fabricating porous TiO 2 to increase the electrode/electrolyte contact area, [ 17,22 ] combining TiO 2 with some conductive materials like carbon or some other transition metal oxides, such as SnO 2 and V 2 O 5 . [ 1,14,15,23 ] Furthermore, Jamnik and Maier have proposed a kind of additional Li storage generated at the interface of nanosized materials. They addressed that the interface of the nanoparticles in a composite electrode system can accommodate additional Li ions, leading to a rise of total Li storage.…”

“…[14][15][16][17] Anatase TiO 2 has a theoretical capacity of 167.5 mAh g −1 corresponding to the uptake of 0.5 Li + per formula unit with a relatively wide potential plateau. [ 18,19 ] However, for anodes made of anatase TiO 2 , the relatively low lithium ion diffusion capability, poor electronic conductivity, and increased resistance at the interface of electrode/electrolyte at high current densities always hamper their practical high power application.…”

“…Our anatase/TiO 2 -B biphase AB550 electrode displays better Li-cell performance than most TiO 2 materials, including anatase nanotubes, nanowires, nanodisks, and TiO 2 -B nanotubes. [ 2,15,18,24,39,[55][56][57][58][59][60][61] Compared with those materials, AB550 may not have the advantages of high surface area, small particle size or excellent conductivity, but the unique anatase/TiO 2 -B coherent interfaces contribute an additional lithium storage venue due to a favorable charge separation at the boundary, resulting in good lithium storage performance. Specifi cally, at the rates lower than 1500 mAh g −1 , the gravimetric capacity for AB550 is higher than the reported 6 nm anatase nanoparticles, 3 nm TiO 2 -B nanoparticles as well as mesoporous TiO 2 -B.…”

Purification of organic pollutant by the novel ternary complex

“…It also indicates the electron was transfer to rGO sheets. In addition, rGO narrows the band gap of TNT as a result of the formation of Ti-O-C bond in nanocomposites [14][15][16][17][18][19]. What's more, the slope change of tangent line also illustrates that rGO and/or H 2 TCPP can widen light absorption scope to visible light.…”

Fast and Straightforward Synthesis of Luminescent Titanium(IV) Dioxide Quantum Dots

“…Self-ordered titania quantum dot array was prepared by the process of titanium anodic oxidation through a nanoporous alumina template on a silicon substrate [6]. Titania quantum dots on graphene nanosheets in water-oil suspension display high performance as an anode material for lithium-ion batteries [7].…”