Lewis acid zeolite catalysts via chemical modification of extra-large pore germanosilicates
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F24%3A10481695" target="_blank" >RIV/00216208:11310/24:10481695 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=iwuLRU4pxl" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=iwuLRU4pxl</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2024.114825" target="_blank" >10.1016/j.cattod.2024.114825</a>
Alternative languages
Result language
angličtina
Original language name
Lewis acid zeolite catalysts via chemical modification of extra-large pore germanosilicates
Original language description
Lewis acid zeolites containing tetravalent metals, such as Sn or Zr, are of great interest as catalysts for various reactions owing to their tunability, activity, and reusability. In the context of emerging trends in biomass -related substrates processing, the synthesis of Lewis acid zeolites with extra -large pores presents a key step by addressing diffusion restriction associated with these molecules. In this paper, we report on the incorporation of Sn and Zr into extra -large pore zeolites UTL and *CTH through a four -step approach, including synthesis of parent germanosilicate zeolites, followed by their post -synthesis stabilization, degermanation, and metal incorporation. The resulting zeolites were examined in Meerwein-Ponndorf-Verley (MPV) reduction of furfural in batch and flow reactors. In a batch, the designed Lewis acid extra -large pore zeolites exhibited similar yields to the MPV reduction product as the respective Snand Zr-substituted zeolite *BEA known as the optimum catalysts for this reaction. On the other hand, a better mass balance was observed for the MPV reduction of furfural over UTL/Sn (91%) vs. *BEA/Sn zeolite catalysts (73 - 91%) in a batch mode, suggesting the hindered formation of insoluble furfural transformation products in the extra -large pore system of UTL zeolite. Showing stable performance in MPV reduction in a flow reactor (50% selectivity to MPV reduction product at 20 - 25% furfural conversion), the extra -large pore Sn-UTL zeolite designed in this study was verified as a promising solid Lewis acid catalyst under industrially relevant conditions.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
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)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Catalysis Today
ISSN
0920-5861
e-ISSN
1873-4308
Volume of the periodical
440
Issue of the periodical within the volume
October
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
114825
UT code for WoS article
001247978600001
EID of the result in the Scopus database
2-s2.0-85194321641