Selective oxidation of glycerol to sodium glycerate with gold-on-carbon catalyst: an insight into reaction selectivity

Gold Sols as Catalysts for Glycerol Oxidation: The Role of Stabilizer

“…Au citrate , in fact showed a selectivity, at 90 % conversion, to glyceric acid of 70 %, whereas Au THPC and Au PVA showed selectivities of 62 % and 64 %, respectively. [7] For the latter two systems, there was a partial overoxidation of glyceric acid to tartronic acid. The selectivity to glyceric acid of unsup- [22] The difference in behavior can be correlated to the higher stability of the produced H 2 O 2 in the presence of unsupported Au nanoparticles in comparison to carbon-supported ones.…”

“…Small particles (3-5 nm) are known to be more active than larger particles (10-30 nm), whereas larger particles give higher selectivity towards glyceric acid. [7][8][9][10][11] Although supported Au nanoparticles have received much attention, only a few studies have been dedicated to the catalytic activity of Au sols for liquid-phase reactions. Rossi and co-workers were the first to claim that gold nanoparticles can be used as a successful catalyst for the aerobic oxidation of glucose despite their instability under the operating conditions.…”

Gel-type ion exchange resin stabilized Pd-Bi nanoparticles for the glycerol oxidation in liquid phase

“…The metals used in these studies included Pd, Pt, Au, Pt-Bi, Au-Pd, Au-Pt supported usually on carbonaceous materials (active carbon, charcoal, graphite, carbon nanotubes) [12][13][14][15][16][17][18][19][20][21][22][23] [24][25][26][27], MgAl 2 O 4 -spinels [28] or hydrotalcite [29] have also been employed. A second metal or promoter is added sometimes in order to improve the activity and/or selectivity, to inhibit the over-oxidation or to prevent the deactivation.…”

The selective oxidation of glycerol over model Au/TiO2 catalysts — The influence of glycerol purity on conversion and product selectivity

“…[8][9][10][11][12][13][14][15] One of the principally studied catalytic materials to promote such selective oxidation reactions using molecular O 2 are supported Au nanoparticles and there is a relatively large body of work showing the selective oxidation of glycerol over these [13][14][15][16][17][18][19].…”