Synthesis and structure determination by 3D electron diffraction of the extra-large pore zeolite ITQ-70

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00601962" target="_blank" >RIV/68378271:_____/25:00601962 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0362349" target="_blank" >https://hdl.handle.net/11104/0362349</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/anie.202416515" target="_blank" >10.1002/anie.202416515</a>

Result language
angličtina
Original language name
Synthesis and structure determination by 3D electron diffraction of the extra-large pore zeolite ITQ-70
Original language description
In this study, we present the synthesis, characterization, and structural analysis of a novel zeolite, ITQ-70, using 3D electron diffraction. This unique material was synthesized under alkaline conditions, employing tetrakis(diethylamino)phosphonium as an organic structure-directing agent, leading to the formation of a pure silica zeolite. ITQ-70 is distinguished by its extra-large pore apertures, which extend along all three axes and intersect one to the other. A notable feature of this zeolite is the presence of structurally ordered defects in very high concentrations (38% of the silicon atoms). As a result, ITQ-70 exhibits the lowest framework density (10.0 T/1000 Å3) ever reported for any zeolite except RWY (7.6 T/1000 Å3), which contains sulfur instead of oxygen connecting T-atoms.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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