Surfactant-Free Production of Ni-Based Nanostructures

CO x Free Hydrogen Production by Catalytic Decomposition of Methane Over Porous Ni/Al2O3 Catalysts

Surfactant-free CO2-based microemulsion-like systems.

The presence of water-rich and water-lean nanodomains in a transparent, pressurized "water-acetone-CO2" mixture was revealed by Raman spectroscopy. This nano-structured liquid can be classified as a surfactant-free microemulsion-like system and has the capacity to dissolve hydrophobic compounds, such as ibuprofen, in the presence of large amounts of water. This finding opens new opportunities i...

Stable aqueous colloidal solutions of intact surfactant-free graphene nanoribbons and related graphitic nanostructures.

Here we demonstrate a simple, nondestructive method for the preparation of stable aqueous colloidal solutions of graphene nanoribbons and carbon nanotubes. The method includes sonication of carbon nanomaterials in hypophosphorous acid, filtration accompanied by washing the solids with water and dispersion of the solids in a fresh portion of water to form colloidal solutions.

Surfactant free most probable TiO2 nanostructures via hydrothermal and its dye sensitized solar cell properties

Tailoring the nano-morphology and nano-architecture of titanium dioxide (TiO₂) is the most important task in the third generation solar cells (Dye sensitized solar cells/Quantum dot sensitized solar cells) (DSSCs/QDSSCs). In this article we present complete study of surfactant free synthesis of TiO₂ nanostructures by a simple and promising hydrothermal route. The plethora of nanostructures like...

Controlled growth behavior of chemical vapor deposited Ni nanostructures

Isolation of four distinct nanostructured Ni products is demonstrated in a well-controlled chemical vapor deposition process. These nanostructures include core–shell Ni–NiO nanowires, horizontally oriented nanowires, vertically oriented nanowires, and fully isometric cubic crystals all obtained upon an amorphous SiO2kSi growth substrate from an identical metal halide precursor. Transmission ele...