Analysis and control of acid sites in zeolites

A Palčić, V Valtchev - Applied Catalysis A: General, 2020 - Elsevier
The exceptional catalytic performance of zeolites is due to the presence of active sites in a
shape-selective environment, ie, in micropores with molecular dimensions. The present …

Two-dimensional zeolite materials: structural and acidity properties

E Schulman, W Wu, D Liu - Materials, 2020 - mdpi.com
Zeolites are generally defined as three-dimensional (3D) crystalline microporous
aluminosilicates in which silicon (Si4+) and aluminum (Al3+) are coordinated tetrahedrally …

Hierarchical polyimide microparticles with controllable morphology

Z Wang, J Hu, H Wang - Small, 2024 - Wiley Online Library
Hierarchical polyimides (PIs) not only show outstanding thermal stability and high
mechanical strength but also have great advantages in terms of microstructure and surface …

MOR nanosheets with tunable c-axis thickness and their catalytic performance in DME carbonylation

K Cao, W Chen, D Fan, Z Jia, N Chen, D Zhu… - Chemical Engineering …, 2024 - Elsevier
Controlling the anisotropic growth of crystals to achieve desired morphology is a challenge
in zeolite crystallization, which often requires the use of bulky organic surfactants or …

Effects of mordenite zeolite catalyst synthesis conditions on dimethyl ether carbonylation

J Yao, X Feng, J Fan, Y He, R Kosol, Y Zeng… - Microporous and …, 2020 - Elsevier
Abstract Effects of different mordenite (MOR) zeolite synthesis conditions, such as salt
additive, hydrothermal time, hydrothermal temperature, and ultrasonic assistance, on …

Evaluation of acidity of hierarchical zeolites using a potentiometric titration method

OV Shvets, MM Kurmach, KM Konysheva… - Materials Today …, 2024 - Elsevier
The method of potentiometric titration and corresponding determination of pK a of acid sites
by the Gran method was applied for hierarchical zeolite materials. For hierarchical Al-, Ga …

Nanoplatelet Mordenite Zeolite with a Controlled Aspect Ratio: Implications for the Alkylation of Benzene with Benzyl Alcohol

MN Liu, B Liang, H Chen, C Dai, QX Luo… - ACS Applied Nano …, 2024 - ACS Publications
Modulating the anisotropic growth rate of zeolites to tailor their physicochemical properties
holds significant promise across various fields, such as catalysis and adsorption. However …

L-glutamic monosodium amino acid-assisted approach to mordenite zeolite synthesis with application in the catalytic cracking of n-hexane

EGC Gouveia, BJB Silva, RJB Motta, DPS Silva… - Journal of Porous …, 2024 - Springer
Mordenite was synthesized at 170 ºC under stirring (60 rpm) with different contents of L-
glutamic acid monosodium salt (MSG) between 4 and 48 h. The materials were …

Synthesis of Nanocrystalline Mordenite Zeolite with Improved Performance in Benzene Alkylation and n‐Paraffins Hydroconversion

S Li, H Wu, RCJ van de Poll, RRM Joosten… - …, 2022 - Wiley Online Library
Nanocrystalline mordenite (MOR) zeolites were hydrothermally synthesized in a single step
with commercial cetyltrimethylammonium (CTA) hydroxide as the sole organic template …

Hierarchical zeolites as efficient catalysts for dehydration of substituted indanols

MM Kurmach, KM Konysheva, PS Yaremov… - Journal of Solid State …, 2022 - Elsevier
Hierarchical zeolites of different topology and morphology (Al-, Ga-and B-silicate zeolites of
MOR, BEA, MFI and MTW structural types with the morphology of aggregated nanosheets …