Preparation and reactivity of hierarchical catalysts in catalytic cracking

A Ishihara - Fuel processing technology, 2019 - Elsevier
The objective of this review is to describe recent advances in preparation and reactivity of
hierarchical catalysts for catalytic cracking of carbonaceous materials consisting of not only …

Advances and environmental aspects on the synthesis of hierarchical zeolites revisited: a state-of-the-art description

JDG da Rocha, DLP Macuvele, CJ de Andrade… - Journal of …, 2023 - Elsevier
Hierarchical zeolites are versatile materials used as adsorbents, ion exchangers, and highly
selective catalysts in reactions such as fluid catalytic cracking, methanol from hydrocarbons …

Synthesis, characterization and evaluations of micro/mesoporous ZSM-5 zeolite using starch as bio template

R Sabarish, G Unnikrishnan - SN applied sciences, 2019 - Springer
We report a simple and economical method to synthesis hierarchical ZSM-5 zeolite using a
natural polymer, soluble starch, as a mesotemplate. The synthesized samples were …

Synthesis methods and recent advances in hierarchical zeolites: a brief review

F Mumtaz, MF Irfan, MR Usman - Journal of the Iranian Chemical Society, 2021 - Springer
Zeolites are crystalline microporous aluminosilicates that are extensively used as
adsorbents and catalysts in the chemical and petrochemical industry. This is due to the …

SAPO-containing alumina CoMoNi-catalysts for hydrotreatment of heavy oil: Pore hierarchy as a key parameter for catalyst stabilization

EE Vorobyeva, IA Shamanaeva, AV Polukhin… - Fuel, 2023 - Elsevier
This paper is devoted to the study of activity and lifetime of CoMoNi-catalyst containing one-
dimensional SAPOs in heavy oil hydrotreatment. A special attention is paid to porous …

Au-modified three-dimensionally ordered macroporous ZnO: In for high-performance ethanol sensors

Z Wang, Z Tian, D Han, F Gu - Journal of Materials Chemistry C, 2020 - pubs.rsc.org
In this paper, Au-modified three-dimensionally ordered macroporous ZnO: In (3DOM Au–
ZnO: In) was synthesized by a one-pot method using a PMMA colloidal crystal template. The …

Mesoporous aerogel-like Al-Si oxides obtained via supercritical antisolvent precipitation of alumina and silica sols

NS Nesterov, AS Shalygin, VP Pakharukova… - The Journal of …, 2019 - Elsevier
A method of alumina and silica sols precipitation in supercritical CO 2 has been developed
for the first time to prepare alumina and silica doped alumina. The silicon content of samples …

Hard-templated macroporous alumina with thick mesoporous walls: The key factors of pore formation

EE Vorobyeva, MS Mel'gunov, EV Luzina… - Ceramics …, 2023 - Elsevier
This paper focuses on the key factors contributing to pore formation in hard-templated
macroporous alumina. Special attention is paid to the formation of a connected pore …

Texture evolution of hard-templated hierarchically porous alumina catalyst in heavy oil hydroprocessing

VS Semeykina, AV Polukhin, AI Lysikov, AV Kleymenov… - Catalysis Letters, 2019 - Springer
The study is devoted to the deactivation behavior of alumina “guard-type” mesoporous and
hierarchical catalysts in long-term 800 h hydroprocessing of heavy oil under conditions …

Template-Assisted SnO2: Synthesis, Composition, and Photoelectrocatalytical Properties

E Gribov, E Koshevoy, I Chikunova, V Parmon - Catalysts, 2023 - mdpi.com
A series of tin oxides were synthesized with polystyrene microspheres (250 nm) as the
template. It was shown that an increase in the template content led to increasing specific …