Incorporation of Aluminum and Iron into the ZSM-12 Zeolite: Synthesis and Characterization of Acid Sites.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F02%3A54020245" target="_blank" >RIV/61388955:_____/02:54020245 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Incorporation of Aluminum and Iron into the ZSM-12 Zeolite: Synthesis and Characterization of Acid Sites.
Original language description
Zeolite ZSM-12 with aluminum and iron in the framework was synthesized in a broad range of Si/Al (Fe) ratios using methyltriethylammonium bromide as structure-directing agent with the aim to characterize the type and concentration of acid sites in dependence on Si/Al (Fe) ratios and calcination procedures. It was shown that the minimum Si/Al ratio achieved for (Al)ZSM-12 is around 35, which is very close to minimum Si/Fe ratio of about 37 for (Fe)ZSM-12. The rate of crystallization of (Al) and (Fe)ZSM-12 depends on the concentration of Al and Fe in the reaction mixture of these trivalent cations, the slower was the apparent crystallization rate. It is suggested that the crystallization rate is controlled by the number of nucleation centers, which depends on the amount of trivalent cations (Al, Fe) . Zeolites (Al) and (Fe)ZSM-12 were calcined under a variety of carefully controlled conditions to investigate the resulting concentration of Broensted and Lewis acid sites.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA4040001" target="_blank" >IAA4040001: Basic molecular sieves for selective side-chain alkylation of toluene</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Collection of Czechoslovak Chemical Commmunications
ISSN
0010-0765
e-ISSN
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Volume of the periodical
67
Issue of the periodical within the volume
N/A
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
18
Pages from-to
1760-1778
UT code for WoS article
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EID of the result in the Scopus database
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