Now showing items 1-10 of 15
Magnetic and magnetocaloric properties of ball milled Nd5Ge3
Effect of particle size reduction of the intermetallic compound Nd5Ge3 by ball milling has been studied by investigating the change in the magnetic and magnetocaloric properties. Ball milling is found to enhance the strength ...
A facile approach to nanoarchitectured three-dimensional graphene-based Li–Mn–O composite as high-power cathodes for Li-ion batteries
We report a facile method to prepare a nanoarchitectured lithium manganate/graphene (LMO/G) hybrid as a positive electrode for Li-ion batteries. The Mn2O3/graphene hybrid is synthesized by exfoliation of graphene sheets ...
Novel silicon–nickel cone arrays for high performance LIB anodes
We report on a high performance silicon anode based on silicon–nickel cone arrays. The composite electrode exhibits good capacity retention and remarkable rate performance. A de-lithiation capacity of 2639, 2341, 2042, ...
Assembly of graphene sheets into 3D macroscopic structures
Integration of graphene sheets, 2D nanoscale building blocks, into 3D macroscopic assemblies and ultimately into a functional system is essential to explore the advanced properties of individual graphene sheets for macroscopic ...
Free-standing one-dimensional plasmonic nanostructures
The field of plasmonics has become one of the most interesting and active research areas in nanotechnology, enabling numerous fundamental studies and applications. The ability to tailor the size, shape, and environment of ...
A leavening strategy to prepare reduced graphene oxide foams
Making graphene “bread”: A leavening strategy – involving hydrazine vapor – is used to prepare reduced graphene oxide (rGO) foams with porous and continuously cross-linked structures from freestanding compact GO layered ...
Colorimetric chemodosimeter based on diazonium-gold-nanoparticle complexes for sulfite ion detection in solution
A fast and simple colorimetric detection system for sulfite, based on diazonium–gold-nanoparticle(AuNP) complexation, has high selectivity and sensitivity in aqueous media. The positively charged diazonium has affinity for ...
Electrophoretic build-up of alternately multilayered films and micropatterns based on graphene sheets and nanoparticles and their applications in flexible supercapacitors
Graphene nanosheets and metal nanoparticles (NPs) have been used as nano-building-blocks for assembly into macroscale hybrid structures with promising performance in electrical devices. However, in most graphene and metal ...
Chemical reaction on a solid surface with nanoconfined geometry
Linear alkane polymerization is achieved on the Au(110) surface with 1D constrained nanochannels, which play a key role in the selective C–H activation and C–C bond coupling.
A “skeleton/skin” strategy for preparing ultrathin free-standing single-walled carbon nanotube/polyaniline films for high performance supercapacitor electrodes
One of the most critical aspects in the preparation of single-walled carbon nanotubes (SWCNTs)/conducting polymer hybrid electrodes is to improve the energy density without seriously deteriorating their high power capability. ...