Synthesis, characterization and application for lithium-ion rechargeable batteries of hollow silica nanospheres

ABC triblock copolymer-stabilized gold nanoparticles for catalytic reduction of 4-nitrophenol

“…This will stabilize and prevent the metal nanoparticles from agglomerating. To date, ABC triblock copolymers have been used in conventional drug delivery systems [21][22][23][24] and also in the preparation of hollow inorganic nanoparticles [25][26][27][28][29]. However, to our knowledge, there are no reports on the employment of ABC triblock polymer as a stabilizer for the synthesis of stable and well-dispersed metal nanoparticles.…”

Insights into the conversion behavior of SiO-C hybrid with pre-treated graphite as anodes for Li-ion batteries

“…Solid SiO is considered as a promising candidate for highperformance Si-based anode materials, because it combines the advantages of high specific capacity and better cycling stability comparing with silicon [7]. The reaction between SiO and lithium in the initial discharge process produces Li 2 O and Li 4 SiO 4 matrix, which could relieve the huge volume changes of Si during lithiation and delithiation [8,9].…”

Hollow Porous SiO2 Nanocubes Towards High-performance Anodes for Lithium-ion Batteries

“…In the past decades, silica is not generally considered to be electrochemically active for lithium storage until Gao et al reported that commercial SiO 2 nanoparticles could react with Li between 0.0 and 1.0 V (vs. Li/Li + ) with a reversible capacity of 400 mAhg −1 14. After that, some investigations on SiO 2 materials with different structures have been reported for application as LIBs anodes, such as film, carbon-coated nanoparticles, hollow nanospheres and so on1516171819. Although the theoretical specific capacity of SiO 2 was calculated to be 1965 mAh/g, the electrochemical performance was not obviously improved for the reasons of volume expansion effect and generating irreversible lithium silicate particles via the electrochemical reaction during cycling16.…”

“…For example, the carbon-coated SiO 2 nanoparticles showed a discharge capacity of 500 mAhg −1 after the 50 th cycle at a 50 mAg −1 current density17. Nakashima's group have synthesized hollow silica nanospheres with uniform size of about 30 nm, and the hollow nanospheres exhibited a reversible discharge capacity of 336 mAhg −1 after the 500 th cycle at 1C current density18. Thus, the capacity of silica anode material has a large potential to be enhanced, which relies on the precise designing of nanostructures to achieve this unique functionality.…”