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Siting and Distribution of the Co Ions in Beta Zeolite: A UV-Vis-NIR and FTIR Study.
The Co(II) ion sites in dehydrated Beta zeolites, consisting of polymorphs A, B and local framework arrangements in different polymorphs of Beta zeolites were suggested. The .alfa. site is formed ...
CF - Fyzikální chemie a teoretická chemie
- 2002 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Effect of Ge/Si substitutions on the local geometry of Si framework sites in zeolites: A combined high resolution29Si MAS NMR and DFT/MM study on zeolite Beta polymorph C (BEC)
and Al-O-Si-O-Si, respectively). Zeolite Beta polymorph C (BEC), containing double in the framework, was chosen for this study as a model of germanium containing zeolites. Our......
Physical chemistry
- 2018 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Stabilization of bare divalent Fe(II) cations in Al-rich beta zeolites for superior NO adsorption
Fe(II)-beta zeolites with a Si/Al molar ratio of 5, synthesized in the absence of an organic structure-directing agent, showed remarkably efficient NO chemisorption, as compared to conventional Si-rich beta zeolites
Physical chemistry
- 2014 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Surfactant-directed mesoporous zeolites with enhanced catalytic activity in tetrahydropyranylation of alcohols: Effect of framework type and morphology
Nanosponge zeolite beta was hydrothermally synthesized using multi-quarternary. The nanosponge morphology of the beta zeolite consisted of randomly interconnected with the conventional beta zeolites
Physical chemistry
- 2017 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Procedure of Beta zeolite production
The invention describes Beta zeolite production with only trace content of alkaline metal cations. The zeolite is produced from a prepared precursor. The advantage of this invention is that Beta zeolite is...
CA - Anorganická chemie
- 2002 •
- P
Rok uplatnění
P - Patent
Beta zeolite with a secondary porosity
Beta zeolite containing, besides micropores typical for BEA structure, also mesopores.
CI - Průmyslová chemie a chemické inženýrství
- 2016 •
- Fuzit •
- Link
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Fuzit - Užitný vzor
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Co-beta Zeolite Highly Active in Propane-SCR-NOx in the Presence of Water Vapor: Effect of Zeolite Preparation and Al Distribution in the Framework
CoNH4-beta and CoH-beta zeolites, with various Co loadings were prepared by Co ion exchange into NH4- and H-beta parent zeolites, from which the template was removed by calcination of the as-synthesized
CF - Fyzikální chemie a teoretická chemie
- 2004 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Structure of Al-Lewis Site in Beta Zeolite Active in Meerwein-Ponndorf-Verley Reduction of Ketone to Alcohol.
H-beta zeolites differing in removal of the template by calcination temperatures, as well as beta zeolites exchanged with alkaline metal ions, were-treated (ST) H-beta. Both alkali metal ion exchange and t...
CF - Fyzikální chemie a teoretická chemie
- 2002 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Beta zeolite half-production
The production of Beta zeolit is being prepared. Expected zeolite production scale : 10 t /y in the first 2-3 years, later bigger production scale up to 100 t/y is expected....
CA - Anorganická chemie
- 2002 •
- X
Rok uplatnění
X - Nezařazeno
Fe-Modified Zeolite BETA as an Active Catalyst for Intramolecular Prins Cyclization of Citronellal
product isopulegol was performed using different modified zeolites BETA (Si/Al ratio method). In case of materials BETA Si/Al 38 and 75 led material impregnation BETA 38 with loading 1 wt.% of Fe provided 97% citr...
Organic chemistry
- 2021 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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