Revamping SiO₂ Spheres by Core–Shell Porosity Endowment to Construct a Mazelike Nanoreactor for Enhanced Catalysis in CO₂ Hydrogenation to Methanol (Adv. Funct. Mater. 47/2021)

Thermocatalytic CO2conversion by siliceous matter: a review

“…, precious metal oxides), especially in recent years. 46,78–95 As a zero-emission liquid organic hydrogen carrier (LOHC), methanol converted from CO 2 is also currently regarded as one of important C 1 catalysis pathways for CO 2 utilization, requiring at-least three-fold molar ratio of hydrogen to CO 2 at low-to-medium temperature (200–350 °C) and elevated pressure (20–50 bar).…”

“…When the active metals are encapsulated in these porous supports, there is a significant increase in the travelling pathway and retention time of the reactants, leading to higher reactant conversion when mass transport limitations are critical. 93,147…”

“…200–202 Considering copper as a well-known and inexpensive catalytically active element for the CO 2 -to-MeOH reaction on an industrial scale, 91 a number of successful siliceous-based catalyst systems containing copper or other elements has also been reported for the synthesis of methanol. 82,92–95…”

“…250 This synthetic protocol also paves the way toward the fabrication of other advanced catalysts with enhanced performance. 82,93…”

“…By virtue of computational fluid dynamic (CFD) simulations, the importance of well-ordered porosity for solid materials was demonstrated during gas–solid catalytic reactions. 93 Accordingly, four common utilized spherical morphologies including rigid sphere ( e.g. , SiO 2 ), mesoporous sphere with a rigid core ( e.g.…”