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Showing 1-20 of 8,054 results

  1. Stabilizing Effect of a Template on Phosphorus-Modified ZSM-5 Zeolites

    Phosphorus modification is a prevalent technique for enhancing the hydrothermal stability and adjusting the acidity of zeolite catalysts. The...

    Jian Cao, Ruifeng Hou, ... Yongwang Li in Catalysis Letters
    Article 14 May 2024

  3. Synthesis, characterization, and evaluation of the CO2 adsorption capacities of beta, ZSM-12, ZSM-48, and silicalite-1 zeolites obtained in the presence of tetraethylammonium hydroxide and 1,6-diaminohexane as organic structure-directing agents

    Zeolites synthesis using a combination of tetraethylammonium hydroxide (TEAOH) and 1,6-diaminohexane (DAH) as organic structure-directing agents...

    Ilyes Bouledjouad, Djamal Dari, ... Mohamed Sassi in Journal of Porous Materials
    Article 01 April 2024

  4. Zeolites for the separation of ethylene, ethane, and ethyne

    The cost-effective separation of ethylene (C 2 H 4 ), ethyne (C 2 H 2 ), and ethane (C 2 H 6 ) poses a significant challenge in the contemporary chemical...

    Binyu Wang, Qiang Li, ... Wenfu Yan in Frontiers of Chemical Science and Engineering
    Article 12 June 2024

  5. Copper-zeolites Prepared by Solid-state Ion Exchange - Characterization and Evaluation for the Direct Conversion of Methane to Methanol

    Direct conversion of methane to methanol (MTM) over Cu-zeolites is a so-called “dream reaction” for the chemical industry. There is still a lot that...

    Karoline Kvande, Sebastian Prodinger, ... Stian Svelle in Topics in Catalysis
    Article Open access 27 December 2022

  6. Kinetics, Isotherms, and Thermodynamics Studies on Adsorption of Methyl Green Dye Onto Different Zeolites

    The adsorption of methyl green (MG) dye from aqueous solutions over different zeolite samples was investigated. Five types of zeolites H-Y (HY),...

    Fatma A. Ibrahim, Amal A. Atran, Mohamed S. Hamdy in Journal of Inorganic and Organometallic Polymers and Materials
    Article 30 January 2024

  7. Water vapor adsorption on small pore ion-exchanged zeolites

    Ion exchange is the reversible exchange of ions in which there is no significant change in the solid structure. Zeolites are aluminosilicates with a...

    Débora A. S. Maia, Thalita M. Azevedo, ... Diana C. S. Azevedo in Adsorption
    Article 07 April 2024

  8. Zeolites as equilibrium-shifting agents in shuttle catalysis

    The catalytic shuttling of functional moieties has emerged as a promising strategy to substitute and diversify traditional hydrofunctionalization...

    Jesse Dallenes, Jonas Wuyts, ... Dirk De Vos in Nature Catalysis
    Article 08 June 2023

  9. Bio-based templates for generating hierarchical zeolites: an overview for greener synthesis pathway

    In general, hierarchical zeolite synthesis will produce waste, which will cause many problems for environmental pollution. The waste that comes from...

    Arxhel S. F. Nanda, Grandprix T. M. Kadja in Journal of Porous Materials
    Article 23 March 2024

  10. Position Control of Catalytic Elements in Zeolites

    Zeolites have been widely used and industrially applied to various catalytic processes for a long time. The catalytic property of the zeolites...
    Ryota Osuga, Toshiyuki Yokoi in Crystalline Metal Oxide Catalysts
    Chapter 2022

  11. Effect of Hydrogel Molar Composition on the Synthesis of LTA-type Zeolites in the Utilization of Technogenic Silica Gel

    Resource saving and creation of environmentally safe environment are the guidelines of modern world policy in the field of waste management. This...

    Igor N. Pyagay, Yana A. Svakhina, ... Victoria R. Dronova in Silicon
    Article 08 June 2024

  12. dTG and FTIR investigation of methanol behavior adsorbed within MFI-type zeolites

    MFI-type zeolites have been synthesized with various chemical compositions in alkaline and fluoride media. Obtained materials have been characterized...

    Abdelkarim Maziz, Nadjat Chouat, ... Fatiha Djafri in Journal of Porous Materials
    Article 14 February 2023

  13. Adsorption mechanisms of ethane, ethene and ethyne on calcium exchanged LTA and FAU zeolites

    The aim of this study is to unravel the influence of single, double and triple bonds in hydrocarbons on the mechanisms of adsorption on zeolites....

    Christian Bläker, Volker Mauer, ... Dieter Bathen in Adsorption
    Article Open access 11 July 2023

  14. Microporous and Hierarchical ZSM-5 Zeolites in Friedländer Synthesis

    Abstract

    The study investigates the catalytic performance of microporous and granular micro–meso–macroporous zeolites (H-ZSM-5 and H-ZSM-5h,...

    N. G. Grigor’eva, S. V. Bubennov, ... B. I. Kutepov in Petroleum Chemistry
    Article Open access 01 July 2023

  15. Ethane dehydrogenation over Co-based MOR zeolites

    Cobalt-based catalysts supported on MOR zeolites with various degree of dealumination were prepared and characterized by XRD, N 2 adsorption, SEM,...

    Huan He, Changxi Miao, ... Zi Gao in Reaction Kinetics, Mechanisms and Catalysis
    Article 01 June 2022

  16. Hydroconversion of n-octane over different MoO3 phase modified nanosized HZSM-5 zeolites

    The n -octane hydroconversion catalysts were prepared by the impregnation of nanosized HZSM-5 with ammonium heptamolybdate or phosphomolybdic acid...

    Qingxin Xu, Chang Cai, ... Dongmei Ren in Reaction Kinetics, Mechanisms and Catalysis
    Article 13 February 2024

  17. Pretreatment of Coal Fly Ash via Microwave Heating and Silicon Fusing for Synthesis of Zeolites

    Coal fly ash (CFA) presents environmental challenges due to its abundance from coal combustion and difficult disposal issues, necessitating effective...

    **aoying Zhou, Wenlong Hu, ... **bing Zhang in Silicon
    Article 18 June 2024

  18. Multifunctional heteroatom zeolites: construction and applications

    Multifunctional heteroatom zeolites have drawn broad attentions due to the possible synergistic effects in the catalytic reactions. Remarkable...

    Qifeng Lei, Chang Wang, ... Landong Li in Frontiers of Chemical Science and Engineering
    Article 11 October 2021

  19. Effects of the Synthesis Conditions and Structural Characteristics of Zeolites on the Adsorption of β-Galactosidase

    Abstract

    The paper is devoted to characterization of BEA and MFI zeolite samples synthesized in alkaline and fluoride media. Using a number of...

    L. F. Atyaksheva, E. P. Andriako, ... V. S. Pavlov in Petroleum Chemistry
    Article 12 August 2022

  20. Transformation of Production Sand Waste to FAU and LTA Zeolites for Selective Moisture Adsorption and Ethanol Conversion

    The environmental impact associated with sand waste disposal in the oil/gas exploration and production process is one of the most crucial...

    Anittha Prasertsab, Wanwipa Leangsiri, ... Chularat Wattanakit in Topics in Catalysis
    Article 10 August 2023
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