In this work, the method of enzyme adsorption on different zeolites and mesoporous silica spheres (MSS) was investigated for the creation of conductometric biosensors. The conductometric transducers consisted of gold interdigitated electrodes were placed on the ceramic support. The transducers were modified with zeolites and MSS, and then the enzymes were adsorbed on the transducer surface. Dif...

RECEIVED DATE (to be automatically inserted after your manuscript is accepted if required according to the journal that you are submitting your paper to) Preparation of high-quality single-walled carbon nanotubes (SWNTs) has been advanced by controlling several parameters including the catalyst and the catalyst support material. Although zeolite has been frequently used as a catalyst support ma...

Synthesis of core–shell nanostructures with magnetic core and zeolitic shell is an ongoing challenge. Herein, a strategy presented for preparation γ-Fe2O3@mesoporous silica (mSiO2) nanoparticles containing ultrasmall domains silicalite-1 in the (γ-Fe2O3@mSiO2/silicalite-1). The consists solid-state reorganization precursor amorphous mSiO2 into using tetrapropylammonium hydroxide (TPAOH) as orga...

An elementary reaction during cracking of a hydrocarbon in a nanoporous silicalite catalyst includes ejection of a hydrid ion as shown in the picture. The reaction was simulated by means of quantum molecular dynamics.

A thermodynamic analysis based on the osmotic ensemble scheme enables the prediction of structural changes occurring in silicalite-1 zeolite upon halocarbon molecule adsorption.

Pure silica zeolites are potentially hydrophobic and have therefore been considered to be interesting candidates for separating alcohols, e.g., 1-butanol, from water. Zeolites are traditionally synthesized at high pH, leading to the formation of intracrystalline defects in the form of silanol defects in the framework. These silanol groups introduce polar adsorption sites into the framework, pot...

Zeolite–sepiolite inorganic nanoheterostructures have been hydrothermally synthesized by adding a dispersion of colloidal sepiolite to a solution able to produce a nanocrystalline zeolite (silicalite). The obtained product could be recovered in good yield by simple filtration only when the relative sepiolite concentration exceeded a threshold of 1.8 wt% in the synthesis mixture (amounting to 1:...

The distribution of sorbates in the channels at various temperatures. The loading of sorbates is 4 molecules per unit cell for all temperatures. 1. Introduction Recently, we have proposed ab initio fitted potentials representing the n-pentane/silicalite-1 interaction

The nature of organic structure directing agents (OSDAs) is paramount importance in the final properties zeolites, particularly framework and porosity. Recently, use P-containing OSDAs has been employed for new but there little discussion compared to their analogues N-OSDAs. main objective this work characterization pure silica MFI zeolite (silicalite-1) prepared by dual-template route with tet...

Isolated hafnium (Hf) sites were prepared on Silicalite-1 and SiO2 investigated for acetone conversion to isobutene. Characterization by IR, 1H MAS NMR, UV-vis spectroscopy suggests that Hf atoms are bonded the support via three O have one hydroxyl group, i.e, (?SiO)3Hf-OH. In case of Hf/Silicalite-1, Hf-OH groups hydrogen bond with adjacent Si-OH form (?SiO)3Hf-OH···HO-Si? complexes. The turno...