Detailed Information on Publication Record
2020
CO2 Hydrogenation to Methanol with Ga- and Zn-Doped Mesoporous Cu/SiO2 Catalysts Prepared by the AerosolAssisted Sol-Gel Process
PARIS, Charlie, Alejandro KARELOVIC, Raydel MANRIQUE, Solène LE BRAS, François DEVRED et. al.Basic information
Original name
CO2 Hydrogenation to Methanol with Ga- and Zn-Doped Mesoporous Cu/SiO2 Catalysts Prepared by the AerosolAssisted Sol-Gel Process
Authors
PARIS, Charlie, Alejandro KARELOVIC, Raydel MANRIQUE, Solène LE BRAS, François DEVRED, Vít VYKOUKAL (203 Czech Republic, guarantor, belonging to the institution), Aleš STÝSKALÍK (203 Czech Republic, belonging to the institution), Pierre ELOY and Damien P. DEBECKER
Edition
ChemSusChem, Weinheim, Wiley-VCH GmbH, 2020, 1864-5631
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10405 Electrochemistry
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 8.928
RIV identification code
RIV/00216224:14310/20:00117584
Organization unit
Faculty of Science
UT WoS
000577759300001
Keywords in English
aerosol-assisted sol-gel process; CH3OH synthesis; CO2 hydrogenation; copper catalyst; mesoporous metallosilicate
Tags
International impact, Reviewed
Změněno: 17/10/2024 17:25, Ing. Martina Blahová
Abstract
V originále
The preparation of copper-based heterogeneous catalysts dedicated to the hydrogenation of CO2 to methanol typically relies on multi-step procedures carried out in batch. These steps are precisely tailored to introduce the active phase (Cu) and the promoters (e. g., zinc, gallium) onto a preformed support to maximize catalyst performance. However, each process step can be associated with the formation of waste and with the consumption of energy, thereby negatively impacting the environmental performance of the overall catalyst preparation procedure. Here, a direct and continuous production process is proposed for the synthesis of efficient catalysts for the CO2-to-methanol reaction. Gallium- and zinc-promoted mesoporous Cu-SiO2 catalysts were prepared in one step by the aerosol-assisted sol-gel process. The catalysts consisted of spherical microparticles and featured high specific surface area and pore volume, with interconnected pores of about 6 nm. A strong promoting effect of Ga and Zn was highlighted, boosting the selectivity for methanol at the expense of CO. Upon calcination, it was shown that Cu species (initially trapped in the silica matrix) underwent a migration towards the catalyst surface and a progressive sintering. After optimization, the catalysts obtained via such direct, continuous, simple, and scalable route could compete with the best catalysts reported in the literature and obtained via multi-step approaches.
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