نتایج جستجو برای: ce zsm 11 zeolite

تعداد نتایج: 429282  

Journal: :Agritepa: Jurnal Ilmu dan Teknologi Pertanian 2022

Rice husk is an agricultural waste that has the potential source of silica in low-cost zeolite synthesis. The objectives this study were 1) extraction rice husks as synthetic raw materials, 2) synthesis and characterized ZSM-5 from silica. Silica was carried out by soaking using a heated 15% NaOH solution. Furthermore, 10% HNO3 solution added to pH 7 for 12 hours. filtrate dried oven hours at 1...

Journal: Nanomedicine Journal 2016
Baharak Divband Maasoumeh Khatamiana Mahdieh Daryana

Objective(s): Binary hybrids of chitosan-zeolite have many interesting applications in separation and bacteriostatic activity. Materials and Methods: Template free ZSM-5 zeolite was synthesized by hydrothermal method, physical hydrogels of nano chitosan in the colloidal domain were obtained in the absence of toxic organic solvent and then nano chitosan/ZSM-5 hybrid composites with nano chitosan...

Journal: :Catalysis Science & Technology 2023

The application of neutron scattering techniques (inelastic scattering, quasi-elastic and diffraction) to explore concepts connected with the methanol-to-hydrocarbon reaction over zeolite ZSM-5 are considered. Reproduced from [ Cat. Sci. Tech. , 2018, 8 3304–3312] under a Creative Commons Attribution Licence (CC-BY).

Journal: :Sustainable Environment Research 2022

Abstract The purpose of this work was to transform a regional biowaste into value-added chemicals and products through modest thermo-catalytic pyrolysis process. ZSM-11 (Zeolite Socony Mobile-11) zeolites modified by nickel (Ni) incorporation (1–8 wt%) were synthesized characterized means X-Ray Diffraction, Inductively Coupled Plasma Atomic Emission Spectroscopy, Infrared Fourier Transform UV–V...

Journal: :Catalysis Today 2021

This article reviews recently published work showing how inelastic neutron scattering spectroscopy can be used to identify species found in zeolite ZSM-5 as a catalyst for conversion of methanol hydrocarbons. The advantages and disadvantages the technique are illustrated, current challenges identified.

2008
Sebastian Reiß Gunter Hagen Ralf Moos

Due to increasing environmental concerns the need for inexpensive selective gas sensors is increasing. This work deals with transferring a novel zeolite-based impedimetric hydrocarbon gas sensor principle, which has been originally manufactured in a costly combination of photolithography, thin-film processes, and thick-film processes to a lowcost technology comprising only thick-film processes ...

Journal: :Silicon 2022

Hierarchical micro-mesoporous ZSM-5 (MFI type) zeolite was synthesized by using corn plant stem pith powder from agricultural waste as hard template under simple hydrothermal method. The additional porosity generated this into the zeolites precursor gel yielded hierarchical (C-ZSM-5). Conventional micro porous (ConvZSM-5) also prepared same procedure without adding to compare catalytic performa...

2005
Alexander G. Stepanov Sergei S. Arzumanov Mikhail V. Luzgin Horst Ernst Dieter Freude Valentin N. Parmon

The kinetics of hydrogen exchange between the molecules of propane-d8, propane-1,1,1,3,3,3-d6, propane-2,2-d2, and Brönsted acid sites of the zeolite H-ZSM-5 have been monitored in situ by 1H MAS NMR spectroscopy in the temperature range of 230–280 ◦C. The intramolecular hydrogen transfer was estimated by in situ 13C MAS NMR spectroscopy of the kinetics of 13C-label scrambling in adsorbed propa...

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