Top-down approach using supercritical carbon dioxide ball milling for producing sub-10 nm Bi2Te3 grains

Vetiver Oil Extraction Optimization Using Supercritical Carbon Dioxide Fluid

Effective terminal sterilization using supercritical carbon dioxide.

Gentle alternatives to existing sterilization methods are called for by rapid advances in biomedical technologies. Supercritical fluid technologies have found applications in a wide range of areas and have been explored for use in the inactivation of medical contaminants. In particular, supercritical CO(2) is appealing for sterilization due to the ease at which the supercritical state is attain...

Conversion of semiconducting behavior of carbon nanotubes using ball milling

This paper proposes a novel chemo-mechanical method to in-situ functionalize carbon nanotubes (CNTs). Ball milling in the presence of ammonium bicarbonate allowed the introduction of amine and amide groups onto the surface of CNTs, resulting in the conversion of the semiconducting behavior of CNTs from p-type to n-type. The corresponding electrical conductivity of CNT increased gradually with b...

Fractionation for Biodiesel Purification Using Supercritical Carbon Dioxide

In recent years, biodegradable and alternative biodiesel has attracted increased attention worldwide. Producing biodiesel from biomass involves critical separation and purification technology. Conventional technologies such as gravitational settling, decantation, filtration, water washing, acid washing, organic solvent washing and absorbent applications are inefficient, less cost effective and ...

Polymerizations in Supercritical Carbon Dioxide.