Selective glucose oxidation on gold colloids

Adsorptive recovery of Au3+ from aqueous solutions using bayberry tannin-immobilized mesoporous silica

“…2. At relatively higher initial pH (3.0-7.0), Au 3+ was reductively adsorbed on BT-SiO 2 , while the formed elemental Au was partially released into aqueous solutions possibly due to its instability under such pH [21], and these elemental Au should be in nano-scale because the filtrates were of purple color [23,24]. Furthermore, these released Au nanoparticles further aggregated in solutions, thus resulting in the precipitation of small particles.…”

Direct deposition of gold nanoparticles onto polymer beads and glucose oxidation with H2O2

“…Catalysis by Au NPs supported on activated carbon [14], Al 2 O 3 [15], and by Au colloids [16] for glucose oxidation with molecular oxygen have extensively been studied and the most active gold catalyst, Au colloids on activated carbon, reached a TOF of 25,000 h −1 per loaded gold atoms at 50 • C [14a]. In another report, initial TOF was calculated to be 50,120 h −1 per surface gold atoms [14b].…”

The Roll of Chemocatalysis in the Establishment of the Technology Platform “Renewable Resources”

“…These catalysts also allow complete oxidation of other carbohydrates such as maltose and lactose to the corresponding aldol acids (maltobionic acid, lactobionic acid) [53][54][55].…”