Now showing items 11-20 of 123
Graphene oxide as a carbon source for controlled growth of carbon nanowires
A simple methodfor the controlled growth of novel reduced graphene oxide/carbon nanowire (rGO/CNW) composites is developed. Without any additional carbon precursor, the graphene oxide itself serves as the only carbon source. ...
Facile preparation of hydrated vanadium pentoxide nanobelts based bulky paper as flexible binder-free cathodes for high-performance lithium ion batteries
Hydrated vanadium pentoxide (V2O5•0.44H2O, HVO) nanobelts were synthesized by a simply high-yield (e.g. up to ~99%) hydrothermal approach. The length of these nanobelts was up to several hundred ...
An interwoven network of MnO2 nanowires and carbon nanotubes as the anode for bendable lithium-ion batteries
A porous interwoven network is synthesized, consisting of ultralong MnO2 nanowires and multi-walled carbon nanotubes (MWCNTs). Serving as the anode for a lithium-ion battery, this nanocomposite demonstrates excellent ...
MOF-directed templating synthesis of a porous multicomponent dodecahedron with hollow interiors for enhanced lithium-ion battery anodes
The high performance of lithium-ion battery (LIB) electrodes relies largely on the meticulous design of hierarchical nanostructures with optimal balance between superior electrochemical properties and conductivity. Herein, ...
The formation of a carbon nanotube–graphene oxide core–shell structure and its possible applications
A stable aqueous dispersion of hydrophobic single-walled carbon nanotubes (SWCNTs) and amphiphilic graphene oxide (GO) nano-sheets was produced by sonication mixing without assistance of any surfactant. Raman spectroscopy, ...
Controlled CVD growth of Cu–Sb alloy nanostructures
Sb based alloy nanostructures have attracted much attention due to their many promising applications, e.g. as battery electrodes, thermoelectric materials and magnetic semiconductors. In many cases, these applications ...
In situ formation of molecular Ni-Fe active sites on heteroatom-doped graphene as a heterogeneous electrocatalyst toward oxygen evolution
Molecularly well-defined Ni sites at heterogeneous interfaces were derived from the incorporation of Ni2+ ions into heteroatom-doped graphene. The molecular Ni sites on graphene were redox-active. However, they showed poor ...
Cobalt sulfide nanosheet/graphene/carbon nanotube nanocomposites as flexible electrodes for hydrogen evolution
Flexible three-dimensional (3D) nanoarchitectures have received tremendous interest recently because of their potential applications in wearable electronics, roll-up displays, and other devices. The design and fabrication ...
Controlled synthesis of BiOCl hierarchical self-assemblies with highly efficient photocatalytic properties
I believe in BiOCles: Microsphere-, microflower-, and microdisk-like BiOCl hierarchical self-assemblies were fabricated and showed superior photocatalytic properties.
Fabrication of core−shell structure of M@C (M=Se, Au, Ag2Se) and transformation to yolk−shell structure by electron beam irradiation or vacuum annealing
Selenium @ carbon core−shell spheres have been synthesized via a simple one-step hydrothermal carbonization process using sucrose and sodium selenite as precursors. Metal selenide or noble metal, e.g. Ag2Se or Au, can be ...