Probing zeolites by vibrational spectroscopies
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 …
and INS) applied to zeolites and zeotype materials. Surface Brønsted and Lewis acidity and …
Two-dimensional zeolite materials: structural and acidity properties
Zeolites are generally defined as three-dimensional (3D) crystalline microporous
aluminosilicates in which silicon (Si4+) and aluminum (Al3+) are coordinated tetrahedrally …
aluminosilicates in which silicon (Si4+) and aluminum (Al3+) are coordinated tetrahedrally …
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 …
important role during catalyst preparation. In this chapter, the application of infrared …
MWW and MFI frameworks as model layered zeolites: structures, transformations, properties, and activity
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 …
are highly useful and valuable in the catalysis, separation, and storage of molecules …
Organic matter and mineral composition of silicate soils: FTIR comparison study by photoacoustic, diffuse reflectance, and attenuated total reflection modalities
DS Volkov, OB Rogova, MA Proskurnin - Agronomy, 2021 - mdpi.com
This study aims to compare photoacoustic (FTIR–PAS), diffuse reflectance (DRIFT), and
attenuated total reflection (ATR) FTIR modalities in the wide wavenumber range from NIR …
attenuated total reflection (ATR) FTIR modalities in the wide wavenumber range from NIR …
Catalytic combustion of VOC on sandwich-structured Pt@ ZSM-5 nanosheets prepared by controllable intercalation
G Liu, Y Tian, B Zhang, L Wang, X Zhang - Journal of hazardous materials, 2019 - Elsevier
A sandwich-structured Pt@ ZSM-5 nanosheets (Pt@ PZN-2) was fabricated by controllable
intercalating Pt nanoparticles between ZSM-5 single-layer sheets via electrostatic …
intercalating Pt nanoparticles between ZSM-5 single-layer sheets via electrostatic …
Process optimization of biodiesel production via esterification of oleic acid using sulfonated hierarchical mesoporous ZSM-5 as an efficient heterogeneous catalyst
NM Marzouk, AOA El Naga, SA Younis… - Journal of …, 2021 - Elsevier
The development of effective heterogeneous catalysts for the production of biodiesel from
low-cost feedstocks containing large amounts of free fatty acids has lately become one of the …
low-cost feedstocks containing large amounts of free fatty acids has lately become one of the …
Spectroscopic expression of the external surface sites of H-ZSM-5
The nature and spectroscopic expression of external surface sites of zeolites, in particular
ZSM-5, is a long-debated question. Herein, we use three cutting-edge techniques: Fourier …
ZSM-5, is a long-debated question. Herein, we use three cutting-edge techniques: Fourier …
Ethene oligomerization on nickel microporous and mesoporous-supported catalysts: Investigation of the active sites
Nickel-containing mesoporous (using Al 2 O 3 or SiO 2-Al 2 O 3 support) and microporous
(using nano-or micro-crystalline Beta zeolite support) catalysts were prepared by ion …
(using nano-or micro-crystalline Beta zeolite support) catalysts were prepared by ion …
Disentangling Brønsted acid sites and hydrogen-bonded silanol groups in high-silica zeolite H-ZSM-5
C Schroeder, V Siozios, M Hunger… - The Journal of …, 2020 - ACS Publications
Hydrogen-bonded SiOH defects and Brønsted acidic bridging OH groups, defined as
Brønsted acid sites (BAS), yield overlap** signals in 1H MAS NMR and FTIR …
Brønsted acid sites (BAS), yield overlap** signals in 1H MAS NMR and FTIR …