Ethanol dehydration with aerosol-made mesoporous
aluminosilicates featuring dispersed active sites

J 2026

Ethanol dehydration with aerosol-made mesoporous aluminosilicates featuring dispersed active sites

LEONOVÁ, Lucie; Giovanni PAMPARARO; Vit VYKOUKAL; Lucie ŠIMONÍKOVÁ; Pierre ELOY et al.

Základní údaje

Originální název

Ethanol dehydration with aerosol-made mesoporous aluminosilicates featuring dispersed active sites

Autoři

LEONOVÁ, Lucie; Giovanni PAMPARARO; Vit VYKOUKAL; Lucie ŠIMONÍKOVÁ; Pierre ELOY; Aleš STÝSKALÍK a Damien P. DEBECKER

Vydání

CATALYSIS TODAY, AMSTERDAM, ELSEVIER, 2026, 0920-5861

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10403 Physical chemistry

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.300 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Ethanol dehydration; Ethylene; Amorphous aluminosilicates; Aerosol-assisted sol-gel; Aluminum dispersion

Štítky

14313010, CF NMR, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 13. 3. 2026 08:14, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Amorphous aluminosilicates are known for their excellent performance in (bio)ethanol dehydration for ethylene production. Several studies showed that the homogeneous dispersion of Al in amorphous aluminosilicates is the key to obtain active and stable catalysts. However, ensuring a high dispersion of Al in the aluminosilicate matrix remains a complicated task. Here, the aerosol-assisted sol-gel (AASG) process is presented as a facile one-step and continuous production method towards highly homogeneous aluminosilicates. We systematically examine the effect of the aluminum loading (1-9 wt% Al) in silica matrix incorporated via AASG technique on the catalytic activity during ethanol dehydration. Aluminum dispersion, chemical structure, textural properties, and acidic behavior were investigated by STEM-EDS, MAS NMR, XPS, nitrogen porosimetry, and infrared spectroscopy combined with pyridine adsorption. Aluminum content is shown to influence textural properties and acidity, and therefore strongly modify catalytic activity. The most active AASG-prepared aluminosilicate catalysts exhibited higher activity and on-stream stability if compared to commercial silica-alumina. It reached a similar performance to other amorphous aluminosilicates with highly homogeneous Al dispersion prepared via peculiar protocols.

Návaznosti

EH22_008/0004572, projekt VaV

Název: Kvantové materiály pro aplikace v udržitelných technologiích

EH23_015/0008175, projekt VaV

Název: Inovace České infrastruktury pro integrativní strukturní biologii

90242, velká výzkumná infrastruktura

Název: CIISB III

Citovat

LEONOVÁ, Lucie; Giovanni PAMPARARO; Vit VYKOUKAL; Lucie ŠIMONÍKOVÁ; Pierre ELOY; Aleš STÝSKALÍK a Damien P. DEBECKER. Ethanol dehydration with aerosol-made mesoporous aluminosilicates featuring dispersed active sites. CATALYSIS TODAY. AMSTERDAM: ELSEVIER, 2026, roč. 461, JAN, s. 1-13. ISSN 0920-5861. Dostupné z: https://doi.org/10.1016/j.cattod.2025.115494.

@article{2516704,
   author = {Leonová, Lucie and Pampararo, Giovanni and Vykoukal, Vit and Šimoníková, Lucie and Eloy, Pierre and Stýskalík, Aleš and Debecker, Damien P.},
   article_location = {AMSTERDAM},
   article_number = {JAN},
   doi = {https://doi.org/10.1016/j.cattod.2025.115494},
   keywords = {Ethanol dehydration; Ethylene; Amorphous aluminosilicates; Aerosol-assisted sol-gel; Aluminum dispersion},
   language = {eng},
   issn = {0920-5861},
   journal = {CATALYSIS TODAY},
   title = {Ethanol dehydration with aerosol-made mesoporous aluminosilicates featuring dispersed active sites},
   url = {https://www.sciencedirect.com/science/article/pii/S0920586125003128?via%3Dihub#spnsr5},
   volume = {461},
   year = {2026}
}

TY  - JOUR
ID  - 2516704
AU  - Leonová, Lucie - Pampararo, Giovanni - Vykoukal, Vit - Šimoníková, Lucie - Eloy, Pierre - Stýskalík, Aleš - Debecker, Damien P.
PY  - 2026
TI  - Ethanol dehydration with aerosol-made mesoporous aluminosilicates featuring dispersed active sites
JF  - CATALYSIS TODAY
VL  - 461
IS  - JAN
SP  - 1-13
EP  - 1-13
PB  - ELSEVIER
SN  - 09205861
KW  - Ethanol dehydration
KW  - Ethylene
KW  - Amorphous aluminosilicates
KW  - Aerosol-assisted sol-gel
KW  - Aluminum dispersion
UR  - https://www.sciencedirect.com/science/article/pii/S0920586125003128?via%3Dihub#spnsr5
N2  - Amorphous aluminosilicates are known for their excellent performance in (bio)ethanol dehydration for ethylene production. Several studies showed that the homogeneous dispersion of Al in amorphous aluminosilicates is the key to obtain active and stable catalysts. However, ensuring a high dispersion of Al in the aluminosilicate matrix remains a complicated task. Here, the aerosol-assisted sol-gel (AASG) process is presented as a facile one-step and continuous production method towards highly homogeneous aluminosilicates. We systematically examine the effect of the aluminum loading (1-9 wt% Al) in silica matrix incorporated via AASG technique on the catalytic activity during ethanol dehydration. Aluminum dispersion, chemical structure, textural properties, and acidic behavior were investigated by STEM-EDS, MAS NMR, XPS, nitrogen porosimetry, and infrared spectroscopy combined with pyridine adsorption. Aluminum content is shown to influence textural properties and acidity, and therefore strongly modify catalytic activity. The most active AASG-prepared aluminosilicate catalysts exhibited higher activity and on-stream stability if compared to commercial silica-alumina. It reached a similar performance to other amorphous aluminosilicates with highly homogeneous Al dispersion prepared via peculiar protocols.
ER  -

LEONOVÁ, Lucie; Giovanni PAMPARARO; Vit VYKOUKAL; Lucie ŠIMONÍKOVÁ; Pierre ELOY; Aleš STÝSKALÍK a Damien P. DEBECKER. Ethanol dehydration with aerosol-made mesoporous aluminosilicates featuring dispersed active sites. \textit{CATALYSIS TODAY}. AMSTERDAM: ELSEVIER, 2026, roč.~461, JAN, s.~1-13. ISSN~0920-5861. Dostupné z: https://doi.org/10.1016/j.cattod.2025.115494.

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