37 articles
Physical properties and phase behavior of carbon dioxide
The physical properties and phase behavior of carbon dioxide cover its phase diagram, triple and critical points, dry ice sublimation at −78.5 °C, densities, solubility, and transport properties.
Polymeric carbon dioxide
Polymeric carbon dioxide, best known as phase V (CO₂-V), is a superhard crystalline form of solid CO₂ in which molecules become a covalent network, formed above about 40 GPa.
Second-sphere coordination in CO2 reduction catalysts
Second-sphere coordination in CO2 reduction catalysts is the placement of functional groups, ions, or scaffold features beyond the metal's ligands to interact with bound CO2, lowering overpotentials.
Supercritical carbon dioxide
Supercritical carbon dioxide, also known as supercritical CO2, is carbon dioxide held above its critical point of 31.1 °C and 7.38 MPa, used as a tunable solvent and working fluid.
Supercritical carbon dioxide cycle
The supercritical carbon dioxide cycle is a closed Brayton power cycle using carbon dioxide above its critical point, enabling compact turbomachinery and higher efficiency than steam plants.
Supercritical CO2 Brayton cycle
The supercritical CO2 Brayton cycle is a closed power cycle using carbon dioxide above its critical point as the working fluid instead of steam, pursued for nuclear, fossil, and solar power.
Supercritical fluid extraction
Supercritical fluid extraction (SFE) is a separation process that uses fluids above their critical point, usually carbon dioxide, to extract compounds for coffee decaffeination, hop extraction, and flavor recovery.