Selective oxidation of glycerol with oxygen in a base-free aqueous solution over MWNTs supported Pt catalysts

Zr-modified hierarchical mordenite as heterogeneous catalyst for glycerol esterification

“…Therefore, employing heterogeneous acid catalysts can contribute to overcome these drawbacks [1,11,[13][14][15][16]. Due to their stronger Brönsted acidity than conventional solid acids like mixed oxides and zeolites, Keggin type heteropolyacids (HPAs) can be employed instead of classical homogeneous acids [17][18][19][20][21][22][23][24][25][26][27][28][29]. Some drawbacks of bulk HPAs like low thermal stability, high solubility in water and polar media and low surface area (1-10 m 2 g −1 ) can be improved by functionalizing them into the framework of high surface area porous supports (silica, activated carbon, zirconia, polymers and acidic ionexchange resin) [11,18,19].…”

Promoting Role of Bismuth on Hydrotalcite-Supported Platinum Catalysts in Aqueous Phase Oxidation of Glycerol to Dihydroxyacetone

“…Catalysts 2018, 8,20 3 of 12 the characteristic peaks of BiOCl ( Figure 2) could be clearly found on the Pt-Bi/HTs upon the Bi loading above 1 wt % and the diffraction peak intensity for BiOCl gradually increases as the Bi content on the support increases. The species of BiOCl on the support are derived from the hydrolysis of BiCl3 during the metal loading procedure.…”

“…Platinum and gold catalysts are found to be the most active among the investigated catalysts for glycerol oxidation, and carbons (active carbon and carbon nanotubes, etc.) [7][8][9] and metallic oxides (TiO 2 , Al 2 O 3 , CeO 2 , CuO, MgO, MgAl 2 O 4 , etc.) [7,[10][11][12][13][14][15][16] have been widely investigated as supports in previous studies.…”

The use of alkaline earth oxides as pH modifiers for selective glycerol oxidation over supported Au catalysts

“…There have also been reports of base free oxidations [21][22][23][24]. Normally, aqueous NaOH serves as the base in this reaction although Hutchings et al.…”