Surface reconstruction, modification and functionalization of natural diatomites for miniaturization of shaped heterogeneous catalysts

Thermocatalytic CO2conversion by siliceous matter: a review

“…46 Lastly, several porous hollow siliceous supports were reported to improve the fluid dynamics inside packed-bed reactors, which is often overlooked for gas-phase reactions. 47,48…”

“…46 Lastly, several porous hollow siliceous supports were reported to improve the uid dynamics inside packed-bed reactors, which is oen overlooked for gas-phase reactions. 47,48 To the best of our knowledge, there is a lack of comprehensive reviews in the literature that adequately address the fabrication and functionality of silica/silicate-based catalysts for thermocatalytic CO 2 conversion, encompassing various CO 2 reaction niches in either gas, liquid, or mixed phases. Specically, the existing reviews are either focused on the merits of silica-based catalysts (both conventional and advanced) for various heterogeneous catalysis 34,49,50 or purely consider various conceivable features of catalytic CO 2 utilization (thermal, plasma, photochemical, and electrochemical).…”

Self-assembly of metal–organosilicate on porous silica substrates for efficient CO2hydrogenation to methanol

“…Although the mass transfer barrier is oen considered negligible for this gas-phase reaction, previous studies have demonstrated the signicance of catalyst architecture. 12,13 It was found that for an identical catalyst composition, an ingeniously designed multivoid silica sphere demonstrated to be a superior support as compared to conventional mesoporous and rigid silica spheres. 12 Due to the rapid development of nanotechnology over the past decades, researchers can prepare and engineer supported nanocatalysts with greater precision.…”

Doubly Doped Mg-Al-V2O74– Layered Double Hydroxide/Mo2CTx MXene Nanosheet Composites for Wear- and Corrosion-Resistant Coatings

“…Given this, it is particularly important to address corrosion and wear throughout the equipment. Numerous surface treatments, such as micro-arc oxidation, chemical conversion, plasma electrolytic oxidation coating, and electroless plating, have been investigated in an attempt to prevent the corrosion and wear of Mg alloys . However, conventional coatings only act as a physical barrier and can even cause severe localized galvanic coupling corrosion when the coating breaks down.…”