Detailed Information on Publication Record
2023
Catalytic performance of micro-mesoporous zirconosilicates prepared by non-hydrolytic sol-gel in ethanol-acetaldehyde conversion to butadiene and related reactions
HRADSKÝ, Dalibor, Petr MACHÁČ, David SKODA, Lucie LEONOVÁ, Petr SAZAMA et. al.Basic information
Original name
Catalytic performance of micro-mesoporous zirconosilicates prepared by non-hydrolytic sol-gel in ethanol-acetaldehyde conversion to butadiene and related reactions
Authors
HRADSKÝ, Dalibor (203 Czech Republic, belonging to the institution), Petr MACHÁČ (203 Czech Republic, belonging to the institution), David SKODA, Lucie LEONOVÁ (203 Czech Republic, belonging to the institution), Petr SAZAMA, Jana PASTVOVA, Dalibor KAUCKY, Dalibor VŠIANSKÝ (203 Czech Republic, belonging to the institution), Zdeněk MORAVEC (203 Czech Republic, belonging to the institution) and Aleš STÝSKALÍK (203 Czech Republic, guarantor, belonging to the institution)
Edition
Applied Catalysis A: General, Elsevier B.V, 2023, 0926-860X
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10402 Inorganic and nuclear chemistry
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 5.500 in 2022
RIV identification code
RIV/00216224:14310/23:00131008
Organization unit
Faculty of Science
UT WoS
000975837400001
Keywords in English
Zirconosilicate; Micro-mesoporous; Non-hydrolytic sol -gel; Ethanol to butadiene transformation; Aldol condensation; MPV reaction
Tags
International impact, Reviewed
Změněno: 17/10/2024 12:41, Ing. Marie Švancarová
Abstract
V originále
The open porosity and number of Lewis acid sites in metal silicates (M = Zr, Ta) have been reported as key factors enabling reaching high butadiene (BD) productivity from ethanol. However, some microporous zeolites recently displayed very high BD yields. To gain a deeper insight, we have applied non-hydrolytic sol-gel (NHSG) in the preparation of micro-mesoporous zirconosilicates. The porosity, structure, and acidity of these materials have been described and compared to a benchmark sample prepared by dry impregnation. The detailed characterization proved that NHSG preparation provided highly homogeneous Zr dispersion in silica leading to almost doubled Lewis acid site numbers and higher activity in ethanol-acetaldehyde conversion to BD, MeerweinPonndorf-Verley (MPV) reaction, and aldol condensation, in comparison to the catalyst prepared by dry impregnation. The selectivity and stability were similar for catalysts prepared by NHSG and dry impregnation.
Links
GJ20-03636Y, research and development project |
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MUNI/A/1209/2022, interní kód MU |
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90110, large research infrastructures |
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90124, large research infrastructures |
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90127, large research infrastructures |
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