Active sites and mechanisms in the direct conversion of methane to methanol using Cu in zeolitic hosts: a critical examination

MA Newton, AJ Knorpp, VL Sushkevich… - Chemical Society …, 2020 - pubs.rsc.org
In this critical review we examine the current state of our knowledge in respect of the nature
of the active sites in copper containing zeolites for the selective conversion of methane to …

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 …

Probing zeolites by vibrational spectroscopies

S Bordiga, C Lamberti, F Bonino, A Travert… - Chemical Society …, 2015 - pubs.rsc.org
This review addresses the most relevant aspects of vibrational spectroscopies (IR, Raman
and INS) applied to zeolites and zeotype materials. Surface Brønsted and Lewis acidity and …

Identification and characterization of surface hydroxyl groups by infrared spectroscopy

K Hadjiivanov - Advances in Catalysis, 2014 - Elsevier
Surface hydroxyl groups are active centers in many catalytic reactions and can play an
important role during catalyst preparation. In this chapter, the application of infrared …

Recent advances in the synthesis of hierarchically nanoporous zeolites

K Na, M Choi, R Ryoo - Microporous and Mesoporous Materials, 2013 - Elsevier
Hierarchically nanoporous zeolites possessing mesopores as well as the inherent
micropores of zeolite structures are garnering attention as a solution to the diffusion …

Diffusion and catalyst efficiency in hierarchical zeolite catalysts

P Peng, XH Gao, ZF Yan, S Mintova - National Science Review, 2020 - academic.oup.com
The preparation of hierarchical zeolites with reduced diffusion limitation and enhanced
catalyst efficiency has become a vital focus in the field of zeolites and porous materials …

Mesopore-modified zeolites: preparation, characterization, and applications

Y Tao, H Kanoh, L Abrams, K Kaneko - Chemical reviews, 2006 - ACS Publications
The demand for environmentally friendly and more efficient technology has enhanced
interest in the use and development of porous solids. These materials typically have high …

MWW and MFI frameworks as model layered zeolites: structures, transformations, properties, and activity

M Shamzhy, B Gil, M Opanasenko, WJ Roth… - Acs Catalysis, 2021 - ACS Publications
Porous solids containing internal pores with sizes ranging from angstroms to nanometers
are highly useful and valuable in the catalysis, separation, and storage of molecules …

Combined solid-state NMR, FT-IR and computational studies on layered and porous materials

G Paul, C Bisio, I Braschi, M Cossi, G Gatti… - Chemical Society …, 2018 - pubs.rsc.org
Understanding the structure–property relationship of solids is of utmost relevance for
efficient chemical processes and technological applications in industries. This contribution …

On the location of Lewis acidic aluminum in zeolite mordenite and the role of framework-associated aluminum in mediating the switch between Brønsted and Lewis …

M Ravi, VL Sushkevich, JA van Bokhoven - Chemical Science, 2021 - pubs.rsc.org
Lewis acidic aluminum in zeolites, particularly acidity that is inherent to the framework, is an
indeterminate concept. A fraction of framework aluminum changes geometry to octahedral …