C-C coupling of 1-butanol over Mg- and Li-doped L-zeolite

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F25%3A00637090" target="_blank" >RIV/67985858:_____/25:00637090 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/25:43931637
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0920586125002548?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0920586125002548?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2025.115436" target="_blank" >10.1016/j.cattod.2025.115436</a>

Result language
angličtina
Original language name
C-C coupling of 1-butanol over Mg- and Li-doped L-zeolite
Original language description
In chemical technologies, the formation of carbon-carbon bonds has gained an increasing importance in recent years. In this work, we studied L-zeolite as a catalyst support for the gas-phase Guerbet coupling of 1-butanol at atmospheric pressure and 400 ◦C. Low-loaded monometallic (Mg and Li) catalysts were synthesized by incipient wetness impregnation and their physicochemical properties were characterized by N2 and Ar adsorptiondesorption isotherms, XRD, FT-IR, temperature-programmed desorption of NH3 and CO2, 29Si and 27Al MAS NMR, and XPS. XRD and FTIR results showed no major change in the crystal structure of the doped zeolite. Impregnation of the zeolite by Mg and Li decreased the surface area and significantly reduced the micropore volume, but crystallinity was preserved. 29Si MAS NMR indicated that desilication had occurred to some extent during catalyst impregnation, which led to the formation of mesopores. The Li/L catalyst showed more basic sites of intermediate strength due to surface Li-O pairs on the surface, which, together with mesoporosity, contribute to enhancing 1-butanol conversion by C-C coupling. The Li/L catalyst was more selective to C8 oxygenate products than the reference aldol condensation catalyst.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20401 - Chemical engineering (plants, products)

Project
<a href="/en/project/TN02000044" target="_blank" >TN02000044: Biorefining and circular economy for sustainability</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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