Molecular views on mechanisms of Brønsted acid-catalyzed reactions in zeolites

C Chizallet, C Bouchy, K Larmier… - Chemical …, 2023 - ACS Publications
The Brønsted acidity of proton-exchanged zeolites has historically led to the most impactful
applications of these materials in heterogeneous catalysis, mainly in the fields of …

Towards a better understanding of Lewis acidic aluminium in zeolites

M Ravi, VL Sushkevich, JA van Bokhoven - Nature materials, 2020 - nature.com
Zeolites are a class of materials that are of great relevance for industrial catalysis. Several
fundamental questions relating to the structure and role of the Lewis acid sites in these …

Hydrogen transfer pathways during zeolite catalyzed methanol conversion to hydrocarbons

S Müller, Y Liu, FM Kirchberger… - Journal of the …, 2016 - ACS Publications
Hydrogen transfer is the major route in catalytic conversion of methanol to olefins (MTO) for
the formation of nonolefinic byproducts, including alkanes and aromatics. Two separate …

Overview and industrial assessment of synthesis strategies towards zeolites with mesopores

R Chal, C Gérardin, M Bulut, S van Donk - ChemCatChem, 2011 - Wiley Online Library
With the necessity for the refining industry to treat heavier feedstocks, there is a clear
demand for improved zeolite materials displaying better accessible surface areas and …

Zeolitic materials with hierarchical porous structures

S Lopez‐Orozco, A Inayat, A Schwab… - Advanced …, 2011 - Wiley Online Library
During the past several years, different kinds of hierarchical structured zeolitic materials
have been synthesized due to their highly attractive properties, such as superior mass/heat …

Mechanism of hierarchical porosity development in MFI zeolites by desilication: The role of aluminium as a pore‐directing agent

JC Groen, LAA Peffer, JA Moulijn… - … –A European Journal, 2005 - Wiley Online Library
The role of the concentration and the nature of aluminium in the creation of hierarchical
porosity in both commercial and synthesized MFI zeolites have been investigated through …

Influence of Nanoscale Intimacy and Zeolite Micropore Size on the Performance of Bifunctional Catalysts for n-Heptane Hydroisomerization

J Oenema, J Harmel, RP Vélez, MJ Meijerink… - ACS …, 2020 - ACS Publications
In this study, Pt nanoparticles on zeolite/γ-Al2O3 composites (50/50 wt) were located either
in the zeolite or on the γ-Al2O3 binder, hereby varying the average distance (intimacy) …

Coupling Conversion of CO2 and n-Butane Over Modified ZSM-5: Incorporation of the Carbon from CO2 into Hydrocarbon Products

K Yang, J Li, C Wei, Z Zhao, Z Liu - ACS Catalysis, 2023 - ACS Publications
The coupling reaction of CO2 and n-butane was conducted over different metal-modified
(Mn, Zr, Ni, Ti, Zn) ZSM-5 catalysts. A high CO2 conversion of 26.5% and n-butane …

Impact of the local environment of Brønsted acid sites in ZSM-5 on the catalytic activity in n-pentane cracking

S Schallmoser, T Ikuno, MF Wagenhofer… - Journal of …, 2014 - Elsevier
The impact of the zeolite Brønsted and Lewis acid site concentration on the catalytic
cracking of alkanes was explored using n-pentane and H-ZSM-5 as examples. Rates …

Decoupling mesoporosity formation and acidity modification in ZSM-5 zeolites by sequential desilication–dealumination

JC Groen, JA Moulijn, J Pérez-Ramírez - Microporous and mesoporous …, 2005 - Elsevier
The combination of dealumination and desilication of ZSM-5 zeolites has been investigated
in order to decouple mesoporosity creation and modification of acidity. Individually …