Selective benzylic oxidation of alkylaromatics over Cu/SBA-15 catalysts under solvent-free conditions

Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst

“…In addition, a diverse broad band of low intensity at ∼280 nm was observed in all the ZrO 2 /SBA15 samples which might be due to the highly distributed ZrO 2 nanoparticles [24,25,29]. Furthermore, an additional band in the vicinity of 230 nm appeared in the UV-vis-DRS patterns of 7ZS and 10ZS samples could be ascribed to the presence of bigger ZrO2 particles (may be below the XRD detection limit) in these samples [26,27,30].…”

“…The pore size distribution curves (inset of Figure-2) indicates that majority of the pores are concentrated at around 7 nm even though this value is different from the average pore size (~6 nm). Generally, the pore wall thickness of SBA-15 type mesoporous materials will be lower than average pore size, but there are instances where both values are more or less same [24][25][26].…”

High-stable CuPd–Cu2O/Ti-powder catalyst for low-temperature gas-phase selective oxidation of alcohols

“…However, the benzyl alcohol conversion catalyzed by Pd/Ti-powder is just 44% ( Table 1, entries 12). Our catalyst exhibits higher activity compared with Au/Ti-powder, CuAg-4/Ti-powder, CoPd-4/Ti-powder and NiPd-4/Ti-powder catalyst ( Table 1, entries [13][14][15][16]. Compared with Au/Cu-fiber [3], the noble metal content in our catalyst is much lower ( Table 1, entry 17).…”

“…Cu is beneficial to industrial application due to its low price compared with other metal catalysts. Cu-based catalyst shows high catalytic efficiency in oxidation or reduction reactions [11][12][13], but still faces some problems. For example, the loss of silica from Cu/SiO 2 catalyst in the form of TMOS leads to the decrease of copper surface area and the aggregation of copper particle, which are adverse in the hydrogenation of dimethyl oxalate [14].…”

Recent Development of Catalytic Materials for Ethylbenzene Oxidation

“…Various catalytic materials with high surface area, high surface to volume ratio, reactivity, tunable pore size, and hydrophilic and hydrophobic interfaces are promising in catalysis. Several nanometals, such as gold [23], copper [24], titanium [25], silver [26], nickel [27], manganese [28], cobalt [29] and tin [25], deposited on solid supports are suitable in oxidation reaction. Functionalized silica with homogeneous metal dispersion which prevents metal agglomeration is efficient in ethylbenzene oxidation [23].…”