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Pregled bibliografske jedinice broj: 1125581

Embryonic zeolites for highly efficient synthesis of dimethyl ether from syngas

Palčić, Ana; Navarro Jaén, Sara; Wu, Dan; Cai, Mengdie; Liu, Chong; Pidko, Evgeny A.; Khodakov, Andrei Y.; Ordomsky, Vitaly; Valtchev, Valentin
Embryonic zeolites for highly efficient synthesis of dimethyl ether from syngas // Microporous and mesoporous materials, 322 (2021), 111138, 8 doi:10.1016/j.micromeso.2021.111138 (međunarodna recenzija, članak, znanstveni)

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Naslov
Embryonic zeolites for highly efficient synthesis of dimethyl ether from syngas

Autori
Palčić, Ana ; Navarro Jaén, Sara ; Wu, Dan ; Cai, Mengdie ; Liu, Chong ; Pidko, Evgeny A. ; Khodakov, Andrei Y. ; Ordomsky, Vitaly ; Valtchev, Valentin

Izvornik
Microporous and mesoporous materials (1387-1811) 322 (2021); 111138, 8

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Embryonic zeolite ; acid sites ; DME synthesis ; syngas ; MFI-type zeolite

Sažetak
Embryonic X-ray amorphous semi-formed MFI-type zeolite units mixed with the Cu-Zn-Al catalyst have been used for the direct synthesis of dimethyl ether (DME) from syngas. The hybrid catalyst with embryonic zeolite (EZ) with the particle size of 5 nm has demonstrated superior performance in terms of activity, selectivity, and stability compared to the crystalline ZSM-5 zeolite counterpart and the amorphous aluminosilicate material. The FTIR pyridine adsorption uncovered several types of active sites in EZ, including Brønsted acid sites of medium strength. The DFT modeling pointed out the key role of defect sites leading to lower strength of the acid sites in the embryonic MFI zeolite in comparison with the fully crystalline material. The effect of embryonic zeolite on the DME synthesis has been assigned to enhanced transport of methanol from Cu to ultra-small zeolite precursor units with moderate acidity, hence promoting the efficient dehydration to DME with high selectivity and stability.

Izvorni jezik
Hrvatski

Znanstvena područja
Kemija



POVEZANOST RADA

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Ana Palčić (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com doi.org

Citiraj ovu publikaciju:

Palčić, Ana; Navarro Jaén, Sara; Wu, Dan; Cai, Mengdie; Liu, Chong; Pidko, Evgeny A.; Khodakov, Andrei Y.; Ordomsky, Vitaly; Valtchev, Valentin
Embryonic zeolites for highly efficient synthesis of dimethyl ether from syngas // Microporous and mesoporous materials, 322 (2021), 111138, 8 doi:10.1016/j.micromeso.2021.111138 (međunarodna recenzija, članak, znanstveni)
Palčić, A., Navarro Jaén, S., Wu, D., Cai, M., Liu, C., Pidko, E., Khodakov, A., Ordomsky, V. & Valtchev, V. (2021) Embryonic zeolites for highly efficient synthesis of dimethyl ether from syngas. Microporous and mesoporous materials, 322, 111138, 8 doi:10.1016/j.micromeso.2021.111138.
@article{article, author = {Pal\v{c}i\'{c}, Ana and Navarro Ja\'{e}n, Sara and Wu, Dan and Cai, Mengdie and Liu, Chong and Pidko, Evgeny A. and Khodakov, Andrei Y. and Ordomsky, Vitaly and Valtchev, Valentin}, year = {2021}, pages = {8}, DOI = {10.1016/j.micromeso.2021.111138}, chapter = {111138}, keywords = {Embryonic zeolite, acid sites, DME synthesis, syngas, MFI-type zeolite}, journal = {Microporous and mesoporous materials}, doi = {10.1016/j.micromeso.2021.111138}, volume = {322}, issn = {1387-1811}, title = {Embryonic zeolites for highly efficient synthesis of dimethyl ether from syngas}, keyword = {Embryonic zeolite, acid sites, DME synthesis, syngas, MFI-type zeolite}, chapternumber = {111138} }
@article{article, author = {Pal\v{c}i\'{c}, Ana and Navarro Ja\'{e}n, Sara and Wu, Dan and Cai, Mengdie and Liu, Chong and Pidko, Evgeny A. and Khodakov, Andrei Y. and Ordomsky, Vitaly and Valtchev, Valentin}, year = {2021}, pages = {8}, DOI = {10.1016/j.micromeso.2021.111138}, chapter = {111138}, keywords = {Embryonic zeolite, acid sites, DME synthesis, syngas, MFI-type zeolite}, journal = {Microporous and mesoporous materials}, doi = {10.1016/j.micromeso.2021.111138}, volume = {322}, issn = {1387-1811}, title = {Embryonic zeolites for highly efficient synthesis of dimethyl ether from syngas}, keyword = {Embryonic zeolite, acid sites, DME synthesis, syngas, MFI-type zeolite}, chapternumber = {111138} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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