Supercritical fluid processing: a new route for materials synthesis

Decoration carbon nanotubes with Pd and Ru nanocrystals via an inorganic reaction route in supercritical carbon dioxide–methanol solution

“…In recent years, supercritical fluids (SCFs) have been widely utilized in material science because of such properties as low viscosity, high diffusivity, near zero surface tension, and strong solvent power for some small molecules [15][16][17][18][19][20]. The flexibility of SCFs, in terms of tunable solvation strength and access to high operating temperatures and pressures, enables the synthesis of a variety of nanostructured metal and semiconductor materials.…”

Reaction engineering: The supercritical water hydrothermal synthesis of nano-particles

“…Supercritical water hydrothermal synthesis (scWHS) offers a relatively simple route which is inherently scalable and chemically much more benign than current technology. As a result, this continuous process has been investigated extensively by several research groups [1][2][3][4][5][6][7][8][9][10][11], but has yet to be applied industrially due to problems of reliability, reproducibility and process control.…”

Synthesis of potassium titanoniobate in supercritical and subcritical water and investigations on its photocatalytic performance

“…Hydrothermal synthesis is an effective method to prepare photocatalytic materials and great advantages appear over the solid-state method due to its mild reaction condition and environmentally benign characters [7,11,[29][30][31]. Supercritical water has been particularly reported as a unique reaction medium favorable for fine particle formation in hydrothermal process [32][33][34][35][36][37]. It has reported that potassium hexatitanate synthesized under supercritical water conditions showed high photocatalytic activities in water decomposition reaction [10,31].…”