Thin porous carbon nanospheres based on natural materials, characterized by abundant availability, facile synthesis without templates, and heteroatom doping have confirmed the enhanced high performance of electrochemical energy storage devices. However, these potentials are difficult to obtain, further poses a serious challenge. This work, activated nanosphere was obtained from biomass precurso...

Zirconia has attracted considerable attention because of its diverse practical applications in fuel-cell technology, its use as a catalyst or catalyst support, its ability to combine with sulfuric acid to form extremely strong acids, and its use as an oxygen sensor and as a possible high-dielectric-constant material for large-scale integrated circuits or as a gate dielectric in metal-oxide semi...

in this report, synthesis, characterization and application of silica perchloric acid nanosphere as a novel and heterogeneous catalyst is described. these nanospheres have been characterized by xrd, ft-ir, bet and tga spectra and also by sem and tem images. the results show that it has a spherical shape and the particles size are between 75 and 100 nm. the catalytic activity has been investigat...

Because of their importance in fundamental research and possible applications in nanotechnology and nanoelectronics, semiconductor nanowires have attracted much interest. In addition to the growth itself, the control of the size and location is an essential problem. Here we show the growth of ordered arrays of vertically aligned silicon nanowires by molecular beam epitaxy using prepatterned arr...

Nanosphere lithography (NSL) derived triangular Ag nanoparticles were used to create an extremely sensitive and specific optical biological and chemical nanosensor. Using simple UV-vis spectroscopy, biotinylated surface-confined Ag nanoparticles were used to detect streptavidin down to one picomolar concentrations. The system was tested for nonspecific binding interactions with bovine serum alb...

nanocrystalline sio2–hclo4, as a newly reported catalyst, has been used as an efficient and reusable catalyst for the synthesis of pyrimidine derivatives. the procedure can be successfully applied to the efficient synthesis of mono substituted pyrimidine derivatives, using triethyl orthoformate, ammonium acetate, methyl ketone derivatives. in practice, this method is a combination of a satisfac...