Synthesis of rutile (alpha-TiO2) nanocrystals with controlled size and shape by low-temperature hydrolysis: Effects of solvent composition

Article Abstract:

A new model is constructed to synthesize uniform rutile (alpha-TiO2) nanocrystals by the thermohydrolysis of titanium chloride in hydrochloric acid-alcohol aqueous solutions at 40-90 degree Celsius. The findings indicate that the nanocrystals size and shape are strongly related to the type and the concentration of alcohol used in the alcohol-water solvent, as well as the presence or absence of both cationic and anionic surfactants.

Methods, Analysis, Titanium dioxide, Thermal properties, Hydrolysis, Aqueous solution reactions

---

Self-assembly of two-and three-dimensional particle arrays by manipulating the hydrophobicity of silica nanospheres

Article Abstract:

A study to describe methods for modifying the surface hydrophobicity of SiO(sub 2) nanoparticles so that the modified SiO(sub 2) spheres could be transferred from aqueous phase to organic solvents to form 2D and 3D particle arrays was performed. The results reveal that the 2D monolayer and 3D multilayer SiO(sub 2) films showed photonic crystal properties that were detected by transmission measurement in the UV-visible region.

Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Thin Film Materials, Silicon & Inorganic Compounds, Thin films, Dielectric films, Silicon compounds, Hydrophobic effect

---

Fabrication of two- and three-dimensional silica nanocolloidal particle arrays

Article Abstract:

Monodispersed silica spheres with diameters of 100-500 nm are prepared by hydrolysis of tetraethyl orthosilicate (TEOS) in the presence of water and ammonia in ethanol medium. Silica colloidal sphere sizes were controlled by changing ammonium concentration at fixed TEOS and water concentrations.

Industrial inorganic chemicals, not elsewhere classified, Silicates, Silicon Dioxide, Chemistry, Physical and theoretical, Physical chemistry, Structure

Similar abstracts:

• Abstracts: Stabilization of gold nanoparticles by 6-mercaptopurine monolayers. Effects of the solvent properties. Effect of the metal on electron transfer across self-assembled monolayers
• Abstracts: The effect of particle morphology and crystallite size on the upconversion luminescence properties of erbium and ytterbium co-doped yttrium oxide phosphors
• Abstracts: The effect of particle morphology and crystallite size on the upconversion luminescence properties of erbium and ytterbium co-doped yttrium oxide phosphors. part 2
• Abstracts: Photoinduced formation of bilayer vesicles. Large-scale synthesis of hexagonal pyramid-shaped ZnO nanocrystals from thermolysis of Zn-oleate complex
• Abstracts: On the steady-state assumption and its application to the rotating disk voltammetry of adsorbed enzymes. Rates of catalyzed processes in enzymes and other cooperative media

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.