Synthesis of WO3/mesoporous ZrO2 catalyst as a high-efficiency catalyst for catalytic oxidation of dibenzothiophene in diesel

WO3 and Ionic Liquids: A Synergic Pair for Pollutant Gas Sensing and Desulfurization

“…The analysis showed that during the synthetic process of WO3 dispersion on the support, the structure of few-layer g-C3N4 was not destroyed ( Figure 12D vs C), leading to a WO3 catalyst with a very high surface, not obtainable using pure WO3, whose structure showed agglomerates ( Figure 12A). The same authors reported a similar synthesis, utilizing a different support (in this case mesoporous ZrO 2 ) evidencing as both IL and calcination temperature, influenced the morphology and the dispersion of WO 3 [130]. The best obtained catalyst (calcinated at 700 • C, using a C 16 -ammonium IL, 700-C 16 -WO 3 /ZrO 2 ) performed very well in oxidation desulfurization.…”

“…Moreover, the process did not require additional organic solvents as extractants. The same authors reported a similar synthesis, utilizing a different support (in this case mesoporous ZrO2) evidencing as both IL and calcination temperature, influenced the morphology and the dispersion of WO3 [130]. The best obtained catalyst (calcinated at 700 °C, using a C16ammonium IL, 700-C16-WO3/ZrO2) performed very well in oxidation desulfurization.…”

Controllable Multicomponent Co‐Assembly Approach to Ordered Mesoporous Zirconia Supported with Well‐Dispersed Tungsten Oxide Clusters as High‐Performance Catalysts

“…[18] Due to high acid strength and good stability in comparison with sulfated zirconia, the WO x /ZrO 2 composites also enable wide applications in diverse acid-catalytic reactions. [19][20][21][22][23][24][25][26] Notably, the catalytic activity was demonstrated to be dependent on surface acid density, which was closely associated with the density (W atoms/nm 2 ) and dispersion (electronic structure and domain size) of WO x species supported on ZrO 2 . Therefore, the surface acid density of WO x /ZrO 2 can be controlled by tuning tungsten amount, calcination temperature, and surface area of ZrO 2 supports.…”

“…Through incorporating tungsten on zirconia, the WO x /ZrO 2 composites were first reported as novel solid superacid catalysts for isomerization of butane and pentane [18] . Due to high acid strength and good stability in comparison with sulfated zirconia, the WO x /ZrO 2 composites also enable wide applications in diverse acid‐catalytic reactions [19–26] . Notably, the catalytic activity was demonstrated to be dependent on surface acid density, which was closely associated with the density (W atoms/nm 2 ) and dispersion (electronic structure and domain size) of WO x species supported on ZrO 2 .…”

“…In past decade, using the lab‐made amphiphilic diblock copolymer of poly(ethylene oxide)‐ b ‐polystyrene (PEO‐ b ‐PS) with rich sp 2 carbon and high glass transition temperature as template, our group has developed a facile and universal strategy for the synthesis of several highly ordered mesoporous metal oxides with single or multiple components [54–62] . However, until now no work has been reported about the synthesis of ordered mesoporous solid acids based on composite metal oxides [19] …”