نتایج جستجو برای: نانوکاتالیست zsm 5

تعداد نتایج: 1216137  

Journal: :Reactions 2022

This study aimed to valorize microcrystalline cellulose (MCC) using protonated zeolite catalysts such as (H-ZSM-5) and Cr/H-ZSM-5 (5%) in ionic liquid. The catalytic effect synergy with 1-butyl-3-methylimidazolium Chloride ([BMIM] Cl) liquid was studied detail. total reducing sugar (TRS) determined the 3, 5-dinitrisalcylic acid (DNS) array method. were characterized techniques Fourier transform...

Journal: :Journal of Chemistry 2022

In order to improve the adsorption performance of molecular sieve honeycomb ceramics for VOCs, author proposes a research method VOCs based on loaded with sieves. The prepared cordierite ceramic-supported HY, Na Y, USY, ZSM-5-300, and ZSM-5-360 monolithic materials by coating method. Using toluene, ethyl acetate, isopropanol, acetone as adsorbates, properties single-component mixed-component or...

Journal: :Catalysts 2021

Comparative studies over micro-/mesoporous Cu-containing zeolites ZSM-5 prepared by top-down treatment involving NaOH, TPAOH or mixture of NaOH/TPAOH (tetrapropylammonium hydroxide) were conducted. The results the catalytic data revealed highest activity Cu-ZSM-5 catalyst both in absence and presence water vapor. physico-chemical characterization (diffuse reflectance UV-Vis (DR UV-Vis), Fourier...

ژورنال: نانو مواد 2020
داریوش زارعی, عبداله علیزاده محمد علی خلیل‌زاده

نانوکاتالیست هتروژنی بازی جامد CP@amine–Lig-Pd به عنوان کاتالیستی موثر و مفید در واکنش جفت شدن سوزوکی بین فنیل بورونیک اسید و آریل هالیدهای مختلف استفاده شد. کلیه واکنش‌ها تحت شرایط بهینه در حلال دی متیل سولفوکسید و در دمای °C 110 و در حضور 2/0 درصد مول از نانوکاتالیست با راندمان خوب انجام شد. نانوکاتالیست سنتزی با تکنیک‌های پراش اشعه ایکس (XRD)، طیف‌سنجی تفکیک انرژی (EDX)، میکروسکوپ الکترونی ع...

Journal: :The Journal of Physical Chemistry C 2015

Journal: :Energy & Fuels 2023

The realization of biofuels and chemicals requires the development highly active selective catalysts, which are resistant to deactivation. A conventional ZSM-5 (SiO2/Al2O3 = 30) was modified with 0.2 M NaOH generate a mesoporous zeolite support. parent zeolite, mic-ZSM-5, hie-ZSM-5, silica support, SiO2, were impregnated 5% nickel characterized using X-ray powder diffraction (XRD), Brunauer–Emm...

Medium-pore (diameter ~ 6A) zeolites such as ZSM-5 and silicalite impregnated with Group VIII metals provide selective catalytic pathways for the conversion of synthesis gas to gasoline or olefins. Mössbauer and magnetic studies on these catalysts containing iron or iron plus cobalt are reported. The zeolites were impregnated with metal nitrate solutions, reduced, and carbided to yield showed F...

2016
Kaixin Li Shao Wee Lee Guoan Yuan Junxi Lei Shengxuan Lin Piyarat Weerachanchai Yanhui Yang Jing-Yuan Wang Haolin Tang

Catalytic pyrolysis behavior of synthesized microporous catalysts (conventional Zeolite Socony Mobil–5 (C-ZSM-5), highly uniform nanocrystalline ZSM-5 (HUN-ZSM-5) and β-zeolite), Mesoporous catalysts (highly hydrothermally stable Al-MCM-41 with accessible void defects (Al-MCM-41(hhs)), Kanemite-derived folded silica (KFS-16B) and well-ordered Al-SBA-15 (Al-SBA-15(wo)) were studied with waste po...

Zeolite ZSM-5 presents a great source of interest in catalysis because of its shape selective properties. The absence of a relationship between the template size and shape of the structure generated during the synthesis of zeolites is illustrated by the case of ZSM-5. In this study, we have investigated the role of ethanol, methyltriphenylphosphonium bromide (MTPBr) and cetyltrimethylammonium b...

Journal: :Fuel Processing Technology 2021

The use of H-ZSM-5 with various binders (Al 2 O 3 , SiO and kaolinite, 10 wt% on catalyst formulation) for the catalytic conversion glycerol to bio-based aromatics (GTA) was investigated in a continuous bench-scale unit at pyrolysis temperature 450 °C, upgrading 500 WHSV pure 1 h ?1 atmospheric pressure, their performance compared (SiO /Al molar ratio 28). latter gave peak BTX carbon yield ca. ...

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