Themed collection Porous Materials (FEZA 2014)

Expansion of a layered zeolite MWW precursor enabled increased uptake of lanthanides and generated low temperature CO oxidation activity.

Mass-transfer improvement in the Pt-catalyzed aromatics hydrogenation by increasing the pore width of controlled pore glasses as supports.

In the present work the function of a zeolite framework in modifying the properties of copper sites interacting with NO has been studied.

A pH-sensitive acyclic enediyne (1) was synthesized for efficient DNA-cleavage and tumor cell suppression.

A highly intensified process for the selective conversion of hemicellulose to furfural is demonstrated which integrates a bifunctional catalytic system into a biphasic fixed-bed reactor operating in continuous mode.

MCM-41 mesoporous solids were modified with chromium species using Cr(NO₃)₃ and CrO₃ as precursors.

A continuous isomerization of glucose into fructose is enabled over a hydrophobic Mg–Al hydrotalcite.

Microwave mediated synthesis produced SAPO-34 nanocrystals with increased catalyst lifetime in the methanol-to-olefin reaction owing to their plate-like crystal shape.

The catalytic cracking of model naphthenes over ZSM-5 zeolites of different crystal sizes was examined at reaction temperatures ranging from 748 to 923 K under atmospheric pressure, focusing on the associated reaction rate constants and activation energies.

The strength of interaction at the mesoporous silica–ionic liquid interface and the pore geometry affect the materials' morphology and the physico-chemical properties of the ionic liquids.

IR spectroscopy and quantum chemical modeling (supplemented by the analysis of charge transfer channels between co-adsorbed ammonia and Co(II)–NO adduct) show that donor NH₃ co-ligands to cobalt cationic centers in zeolites strongly activate the N−O bond.

The hydroisomerization of long-chain n-paraffins was studied in the temperature range of 205–230 °C at p_H2 = 50 bar over bimetallic catalysts consisting of mixtures of platinum and palladium supported on commercially available nano-sized zeolite beta.

Zirconia nanomaterials were prepared by impregnation of KIL-2 type silica with 4, 8 and 12 wt.% ZrO₂, and were modified by sulphate groups in order to vary the type and strength of acidity.

The mechanism of zeolite MOR recrystallization into two types of hierarchical micro/mesoporous materials is proposed on the basis of data of various physicochemical methods: multinuclear MAS NMR, XRD, TEM, etc.

Hierarchically porous Fe–zeolite materials built of uniform nanocrystals with close, random and spongy packing have been designed for the total oxidation of high MW organics by hydrogen peroxide.

Sulfadiazine-loaded silver nanoporous silica carriers have similar antibacterial properties as silver sulfadiazine.

Purely silica MFI-type nanosheets were successfully used for molecular decontamination.

The 3D atomic structure of silicalite-1 has been reconstructed for the first time by combining three high resolution HAADF-STEM images.

Water intrusion–extrusion was studied in pure silica MTT- and STF-type hydrophobic zeolites.

Hybrid organosilica supports synthesized with pore size adjusted to enzyme dimensions provide high stability in organic solvent systems and prevent leaching.

Transmission electron micrographs of (a) H-Beta-25, (b), (c) and (d) 1 ml PPy/H-Beta-25 composite.

Mesoscopic sorbents are synthesized with various solvents for CO₂ capture at elevated pressure and modified with Zr⁴⁺ cations to increase the uptake performance.

Amorphous super-microporous zirconium phosphonates with tunable pore size distributions were hydrothermally synthesized in a CTAB–H₂O–ethanol system by controlling the aging time.

The adsorption structures of the various hydrocarbons on silicalite-1 are revealed experimentally using the single-crystal X-ray method.

Structural transitions of a flexible Cu-MOF are observed by pressure-dependent in situ XRD with C₄-hydrocarbons whereby only 1-butene sorption shows two transformations.