Pickering emulsion enhanced interfacial catalysis under Taylor flow in a microchannel reactor

Magnetic-responsive Pickering emulsions based on MFe2O4 (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

“…Upon heating these Pickering emulsions to 80 °C in the presence of oxidants such as H 2 O 2 , benzyl alcohol was successfully oxidized into benzyl aldehyde. The turnover number (TON) of the ferrite nanoparticles in PIC (48-55) was found to be 1.5-4 times higher than that in acetonitrile (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30). The reaction followed first-order kinetics for MnFe 2 O 4 , and the reaction constants in PIC and acetonitrile were determined to be 0.712 h −1 and 0.310 h −1 , respectively.…”

“…Recently, Pickering interfacial catalysis (PIC) has aroused increasing interest in oil/water biphasic catalysis. [21][22][23][24] The catalyst-loaded solid nanoparticles (NPs) act both as an emulsifier and an interfacial catalyst at the oil/water interface, providing a large reaction interfacial area for mass transport, hence enhancing catalytic efficiency and effective separation of products. 25 Wei et al reported the use of Pd/MgAl-LDO (MgAllayered double oxide) as a catalyst in the selective oxidation of benzyl alcohol (BzOH) in Pickering emulsion systems made of water and toluene.…”

Physicochemical properties of functionalized A200 and SBA-15 nanoparticles with enhanced amphiphilicity for Pickering emulsions

“…However, with the deepening of exploration, oil recovery has become progressively more difficult, and the recovery technology needs to be improved even further. 1–3 Injecting nanoparticle fluids into oil reservoirs is a new enhanced oil recovery (EOR) technology, 4–7 where nanoparticles in the nanofluid are adsorbed at the oil–water interface to stabilize the two phases to form a Pickering emulsion. 8,9 The formation of an emulsion helps the nanofluid to flow through the low-permeability zone and trap the oil.…”