Solid nanoparticles that catalyze biofuel upgrade reactions at the water/oil interface.
A recoverable catalyst that simultaneously stabilizes emulsions would be highly advantageous in streamlining processes such as biomass refining, in which the immiscibility and thermal instability of crude products greatly complicates purification procedures. Here, we report a family of solid catalysts that can stabilize water-oil emulsions and catalyze reactions at the liquid/liquid interface. By depositing palladium onto carbon nanotube-inorganic oxide hybrid nanoparticles, we demonstrate biphasic hydrodeoxygenation and condensation catalysis in three substrate classes of interest in biomass refining. Microscopic characterization of the emulsions supports localization of the hybrid particles at the interface.
Crossley
Steven
S
School of Chemical, Biological, and Materials Engineering, University of Oklahoma, Norman, OK 73019, USA.
Faria
Jimmy
J
Shen
Min
M
Resasco
Daniel E
DE
D000447:Aldehydes / Q000737:chemistry; D001547:Benzaldehydes / Q000737:chemistry; D056804:Biofuels; D018533:Biomass; D002384:Catalysis; D004655:Emulsions; D005976:Glutaral / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D008277:Magnesium Oxide; D053768:Metal Nanoparticles; D037742:Nanotubes, Carbon; D009821:Oils / Q000737:chemistry; D010165:Palladium; D010636:Phenols / Q000737:chemistry; D012822:Silicon Dioxide; D012995:Solubility; D013696:Temperature; D013816:Thermodynamics; D014867:Water / Q000737:chemistry
D000447:Aldehydes; D001547:Benzaldehydes; D056804:Biofuels; D004655:Emulsions; D037742:Nanotubes, Carbon; D009821:Oils; D010636:Phenols; D014867:Water; D008277:Magnesium Oxide; D010165:Palladium; D012822:Silicon Dioxide; D006859:Hydrogen; C100058:vanillin; D005976:Glutaral; C031639:caprylic aldehyde