| SKODA, David, Ran ZHU, Barbora HANULIKOVA, Aleš STÝSKALÍK, Vít VYKOUKAL, Petr MACHÁČ, Lucie ŠIMONÍKOVÁ, Ivo KURITKA, Claude POLEUNIS, Damien P DEBECKER a Yuriy ROMAN-LESHKOV. Propylene Metathesis over Molybdenum Silicate Microspheres with Dispersed Active Sites. ACS Catalysis. WASHINGTON: AMER CHEMICAL SOC, 2023, roč. 13, č. 19, s. 12970-12982. ISSN 2155-5435. Dostupné z: https://dx.doi.org/10.1021/acscatal.3c02045. |
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@article{2352435,
author = {Skoda, David and Zhu, Ran and Hanulikova, Barbora and Stýskalík, Aleš and Vykoukal, Vít and Macháč, Petr and Šimoníková, Lucie and Kuritka, Ivo and Poleunis, Claude and Debecker, Damien P and RomanandLeshkov, Yuriy},
article_location = {WASHINGTON},
article_number = {19},
doi = {http://dx.doi.org/10.1021/acscatal.3c02045},
keywords = {molybdenum silicate; olefin metathesis; nonaqueous; microspheres; catalyst; propylene},
language = {eng},
issn = {2155-5435},
journal = {ACS Catalysis},
title = {Propylene Metathesis over Molybdenum Silicate Microspheres with Dispersed Active Sites},
url = {https://pubs.acs.org/doi/10.1021/acscatal.3c02045},
volume = {13},
year = {2023}
}
TY - JOUR
ID - 2352435
AU - Skoda, David - Zhu, Ran - Hanulikova, Barbora - Stýskalík, Aleš - Vykoukal, Vít - Macháč, Petr - Šimoníková, Lucie - Kuritka, Ivo - Poleunis, Claude - Debecker, Damien P - Roman-Leshkov, Yuriy
PY - 2023
TI - Propylene Metathesis over Molybdenum Silicate Microspheres with Dispersed Active Sites
JF - ACS Catalysis
VL - 13
IS - 19
SP - 12970-12982
EP - 12970-12982
PB - AMER CHEMICAL SOC
SN - 21555435
KW - molybdenum silicate
KW - olefin metathesis
KW - nonaqueous
KW - microspheres
KW - catalyst
KW - propylene
UR - https://pubs.acs.org/doi/10.1021/acscatal.3c02045
N2 - In this work, we demonstrate that amorphous and porous molybdenum silicate microspheres are highly active catalysts for heterogeneous propylene metathesis. Homogeneous molybdenum silicate microspheres and aluminum-doped molybdenum silicate microspheres were synthesized via a nonaqueous condensation of a hybrid molybdenum biphenyldicarboxylatebased precursor solution with (3-aminopropyl)triethoxysilane. The as-prepared hybrid metallosilicate products were calcined at 500 degrees C to obtain amorphous and porous molybdenum silicate and aluminum-doped molybdenum silicate microspheres with highly dispersed molybdate species inserted into the silicate matrix. These catalysts contain mainly highly dispersed MoOx species, which possess high catalytic activity in heterogeneous propylene metathesis to ethylene and butene. Compared to conventional silica-supported MoOx catalysts prepared via incipient wetness impregnation (MoIWI), the microspheres with low Mo content (1.5-3.6 wt %) exhibited nearly 2 orders of magnitude higher steady-state propylene metathesis rates at 200 degrees C, approaching site time yields of 0.11 s-1.
ER -
SKODA, David, Ran ZHU, Barbora HANULIKOVA, Aleš STÝSKALÍK, Vít VYKOUKAL, Petr MACHÁČ, Lucie ŠIMONÍKOVÁ, Ivo KURITKA, Claude POLEUNIS, Damien P DEBECKER a Yuriy ROMAN-LESHKOV. Propylene Metathesis over Molybdenum Silicate Microspheres with Dispersed Active Sites. \textit{ACS Catalysis}. WASHINGTON: AMER CHEMICAL SOC, 2023, roč.~13, č.~19, s.~12970-12982. ISSN~2155-5435. Dostupné z: https://dx.doi.org/10.1021/acscatal.3c02045.
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