Nanosponge TS-1: A Fully Crystalline Hierarchical Epoxidation Catalyst
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10438804" target="_blank" >RIV/00216208:11310/21:10438804 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=iU_lJJ-RyG" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=iU_lJJ-RyG</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/admi.202001288" target="_blank" >10.1002/admi.202001288</a>
Alternative languages
Result language
angličtina
Original language name
Nanosponge TS-1: A Fully Crystalline Hierarchical Epoxidation Catalyst
Original language description
Epoxide production by organic synthesis raises environmental and safety issues, especially for industrially relevant substrates larger than C(4), which lack effective catalysts for direct epoxidation. However, titanosilicates activate hydrogen peroxide for the epoxidation of C(!)C double bonds. For such purposes, active site accessibility must nevertheless be tuned for each substrate. Accordingly, this paper reports on the preparation, characterization and catalytic properties of an MFI titanosilicate nanosponge (nsTS-1). nsTS-1 is prepared by post-synthesis titanium impregnation of a pure silica MFI nanosponge, producing a fully crystalline and highly open catalyst with a total pore volume of 0.77 cm(3)g(-1). Due to the high external surface of the nanolayered domains, Ti forms isolated framework-attached Ti sites rather than extra-framework TiO2. As a result, the structure of nsTS-1 is more defined and uniform than the structure of other layered titanosilicate catalysts (e.g., silica-titania pillared TS-1). Catalytic tests show: i) that nsTS-1 efficiently catalyzes the epoxidation of cyclic olefins and terpenes and ii) cyclooctene and linalool conversion linearly increases with the external surface area and mesopore volume of the catalyst. Overall, the presented findings enable to tailor effective catalysts for direct epoxidation, thereby potentially reducing costs and waste in the production of large epoxides.
Czech name
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Czech description
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Classification
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
10403 - Physical chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Materials Interfaces [online]
ISSN
2196-7350
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
4
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
2001288
UT code for WoS article
000569487100001
EID of the result in the Scopus database
2-s2.0-85090964401