• Cu particles supported on silica by strong electrostatic adsorption were smaller than 5 nm. The textural properties of the support impacted both conversion and selectivity. commercial fumed was more prone to suffer from deactivation mesoporous ones. over mesocellular foam provided higher metallic surface lower acidity. fluoride addition during synthesis shortened channels silica, decreasing d...

The synthesis of highly functionalized porous silica-carbon composites made up of sulphonic groups attached to a carbon layer coating the pores of three types of mesostructured silica (i.e. SBA-15, KIT-6 and mesocellular silica) is presented. The synthesis procedure involves the following steps: a) removal of the surfactant, b) impregnation of the silica pores with a carbon precursor, c) carbon...

A siliceous mesocellular foam-immobilized Ru-TsDPEN complex exhibited excellent catalytic reactivity, enantioselectivity and reusability in the asymmetric transfer hydrogenation of an imine and ketones.

The synergistic effect of ultrasound, the heterogeneous Fenton reaction and photocatalysis was studied using a nickel foam (NF)-supporting TiO₂ system and rhodamine B (RhB) as a target. The NF-supporting TiO₂ system was prepared by depositing TiO₂ on the skeleton of NF repeatedly and then calcining it. To optimize the conditions and parameters, the catalytic activity was tested in four systems ...

Abstract Large, ink‐bottle‐shaped pores in mesocellular foams (MCFs) are desired for various applications requiring enhanced mass transfer or the immobilization of larger compounds. Hence, cylindrical COK‐12, an ordered mesoporous silica structurally comparable to SBA‐15 but synthesized at room‐temperature quasi‐neutral pH, chemically swollen into ink‐bottle pores. Therefore, p ‐xylene is used ...

NaY zeolite, an ordered, large pore molecular sieve pertaining to the FAU zeolite structural group, was studied as a novel matrix for efficient preparation of supported isothiazolinone-based biocide, and results were compared those corresponding mesoporous silicas. To analyze possibility reducing biocide ecotoxicity by encapsulation, commercial used latex preservation (CMIT/MIT) incorporated in...

The porous carbon matrix is widely recognized to be a promising sulfur reservoir to improve the cycle life by suppressing the polysulfide dissolution in lithium sulfur batteries (LSB). Herein, we synthesized mesocellular carbon foam (MSUF-C) with bimodal mesopore (4 and 30 nm) and large pore volume (1.72 cm2/g) using MSUF silica as a template and employed it as both the sulfur reservoir and the...

The steam reforming of ethanol (SRE) is a key process for the production H2 and other vital hydrocarbons. present work describes synthesis Platinum-Gallium (Pt−Ga) nanoalloys supported on mesostructured cellular foam (MCF-17) via ultrasound-assisted impregnation method. Ga was substituted with Pt in different wt.% i. e. Pt/MCF-17, Pt99.9Ga0.1/MCF-17, Pt99Ga1/MCF-17, Pt90Ga10/MCF-17 evaluated to...