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Cu supported Fe-SiO2 nanocomposites for reverse water gas shift reaction

  • This work analyses the catalytic activity displayed by Cu/SiO2, Cu-Fe/SiO2 and Cu/FSN (Fe-SiO2 nanocomposite) catalysts for the Reverse Water Gas Shift reaction. Compared to Cu/SiO2 catalyst, the presence of Fe resulted on higher CO’s selectivity and boosted resistances against the constitution of the deactivation carbonaceous species. Regarding the catalytic performance however, the extent of improvement attained through incorporation Fe species strongly relied on the catalysts’ configuration. At 30 L/gh and H2:CO2 ratios = 3, the performance of the catalysts’ series increased according to the sequence: Cu/SiO2 < Cu-Fe/SiO2 << Cu/FSN. The remarkable catalytic enhancements provided by Fe-SiO2 nanocomposites under different RWGS reaction atmospheres were associated to enhanced catalyst surface basicity’s and stronger Cu-support interactions. The catalytic promotion achieved by Fe-SiO2 nanocomposites argue an optimistic prospective for nanocomposite catalysts within future CO2-valorising technologies.

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Author: Miriam González-CastañoORCiD, Juan Carlos Navarro de MiguelORCiD, F. Sinha, Samuel Ghomsi Wabo, Olaf KlepelORCiDGND, Harvey Arellano-GarciaORCiD
DOI:https://doi.org/10.1016/j.jcou.2021.101493
ISSN:2212-9820
Title of the source (English):Journal of CO2 Utilization
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2021
Tag:Cu catalysts; Fe-doped silica; Nanocomposites; Reverse water gas shift reaction
Volume/Year:46
Number of pages:8
Article number:101493
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Technische Chemie
Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Prozess- und Anlagentechnik
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