Synthesis of Large Pore Zeolites and Molecular Sieves

2002 ◽  
pp. 217-268 ◽  
Author(s):  
Kenneth J. Balkus
Keyword(s):  
Molecular Sieves ◽  
Large Pore ◽  
Large Pore Zeolites

scholarly journals Synthesis of highly stable metal-containing extra-large-pore molecular sieves

2016 ◽  
Vol 374 (2061) ◽  
pp. 20150075 ◽  
Author(s):  
Raquel Martínez-Franco ◽  
Cecilia Paris ◽  
Manuel Moliner ◽  
Avelino Corma
Keyword(s):  
Molecular Sieves ◽  
Chemical Properties ◽  
Aromatic Proton ◽  
Isomorphic Substitution ◽  
X Ray ◽  
Large Pore ◽  
Vis Spectroscopy ◽  
Temperature Programmed ◽  
Proton Sponges ◽  
Large Pore Zeolites

The isomorphic substitution of two different metals (Mg and Co) within the framework of the ITQ-51 zeotype (IFO structure) using bulky aromatic proton sponges as organic structure-directing agents (OSDAs) has allowed the synthesis of different stable metal-containing extra-large-pore zeotypes with high pore accessibility and acidity. These metal-containing extra-large-pore zeolites, named MgITQ-51 and CoITQ-51, have been characterized by different techniques, such as powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectrometry, UV–Vis spectroscopy, temperature programmed desorption of ammonia and Fourier transform infrared spectroscopy, to study their physico-chemical properties. The characterization confirms the preferential insertion of Mg and Co atoms within the crystalline structure of the ITQ-51 zeotype, providing high Brønsted acidity, and allowing their use as efficient heterogeneous acid catalysts in industrially relevant reactions involving bulky organic molecules.

Methanol‐to‐Olefins Reaction over Large‐Pore Zeolites: Impact of Pore Structure on Catalytic Performance

2021 ◽  
Author(s):  
Sungsik Park ◽  
Gakuji Sato ◽  
Ryota Osuga ◽  
Yong Wang ◽  
Yoshihiro Kubota ◽  
...  
Keyword(s):  
Pore Structure ◽  
Catalytic Performance ◽  
Large Pore ◽  
Large Pore Zeolites

Catalytic conversions of linalool and linalyl acetate over large-pore zeolites and mesoporous MCM-41

2007 ◽  
Vol 62 (4) ◽  
pp. 180-186 ◽  
Author(s):  
Ts. M. Ramishvili ◽  
V. V. Yushchenko ◽  
M. K. Charkviani
Keyword(s):  
Linalyl Acetate ◽  
Large Pore ◽  
Large Pore Zeolites ◽  
Mcm 41

Methane Partial Oxidation over [Cu2(μ-O)]2+ and [Cu3(μ-O)3]2+ Active Species in Large-Pore Zeolites

ACS Catalysis ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 1500-1509 ◽  
Author(s):  
M. Haris Mahyuddin ◽  
Takahiro Tanaka ◽  
Yoshihito Shiota ◽  
Aleksandar Staykov ◽  
Kazunari Yoshizawa
Keyword(s):  
Partial Oxidation ◽  
Active Species ◽  
Methane Partial Oxidation ◽  
Large Pore ◽  
Large Pore Zeolites

Kinetics Study of Ethylbenzene Alkylation with Ethanol over Medium and Large Pore Zeolites

2013 ◽  
Vol 52 (38) ◽  
pp. 13613-13621 ◽  
Author(s):  
Mogahid Osman ◽  
Mohammad M. Hossain ◽  
Sulaiman Al-Khattaf
Keyword(s):  
Kinetics Study ◽  
Large Pore ◽  
Large Pore Zeolites
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