A supercritical fluid (SF) can be defined as a dense non condensable fluid. A fluid reaches the supercritical status when its temperature and pressure exceed the relevant critical temperature and pressure. At the critical point only a single phase exists which has some properties typical of liquids (density) and some of gases (viscosity, compressibility, and mass diffusion coefficient). For pha...

Boehmite applications are often subject to specific characteristics in terms of morphologies and surface properties. The versatile continuous supercritical hydrothermal method allows synthesizing various boehmite from rhombic hexagonal platelet-like nanoparticles depending on the preferential adsorption part precursor after transformation species (020) resulting a growth along [001] mostly [100...

In this paper, controllable synthesis of various ZnO nanostructures was achieved via a simple and cost-effective hydrothermal process on the Si substrate. The morphology evolution of the ZnO nanostructures was well monitored by tuning hydrothermal growth parameters, such as the seed layer, solution concentration, reaction temperature, and surfactant. X-ray diffraction and photoluminescence meas...

Thermodynamic modelling of organic synthesis has largely been focused on deep-sea hydrothermal systems. When seawater mixes with hydrothermal fluids, redox gradients are established that serve as potential energy sources for the formation of organic compounds and biomolecules from inorganic starting materials. This energetic drive, which varies substantially depending on the type of host rock, ...

The water/AOT/liquid alkane reverse micelle system has proven to be an effective medium for the production of nanoscale materials and has become a popular area of study. It has been demonstrated that the properties of the bulk alkane phase influence the synthesis of metallic nanoparticles, particularly the ultimate particle size. The use of supercritical fluids as the bulk phase provide a novel...