SKODA, David, Ran ZHU, Barbora HANULIKOVA, Aleš STÝSKALÍK, Vít VYKOUKAL, Petr MACHÁČ, Lucie ŠIMONÍKOVÁ, Ivo KURITKA, Claude POLEUNIS, Damien P DEBECKER and Yuriy ROMAN-LESHKOV. Propylene Metathesis over Molybdenum Silicate Microspheres with Dispersed Active Sites. ACS Catalysis. WASHINGTON: AMER CHEMICAL SOC, 2023, vol. 13, No 19, p. 12970-12982. ISSN 2155-5435. Available from: https://dx.doi.org/10.1021/acscatal.3c02045. |
Other formats:
BibTeX
LaTeX
RIS
@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 and Yuriy ROMAN-LESHKOV. Propylene Metathesis over Molybdenum Silicate Microspheres with Dispersed Active Sites. \textit{ACS Catalysis}. WASHINGTON: AMER CHEMICAL SOC, 2023, vol.~13, No~19, p.~12970-12982. ISSN~2155-5435. Available from: https://dx.doi.org/10.1021/acscatal.3c02045.
|