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Title: Ni based catalysts promoted with cerium used in the steam reforming of toluene for hydrogen production
Authors: Abou Rached, Jihane
El Hayek, Christelle
Dahdah, Eliane
Gennequin, Cédric
Aouad, Samer 
Tidahy, Haingomalala Lucette
Estephane, Jane 
Nsouli, Bilal
Aboukaïs, Antoine
Abi Aad, Edmond
Affiliations: Department of Chemistry 
Department of Chemical Engineering 
Keywords: Hydrogen
Steam reforming
Subjects: Toluene
Issue Date: 2017
Part of: International journal of hydrogen energy
Volume: 42
Issue: 17
Start page: 12829
End page: 12840
NixMg6−xAl1.8Ce0.2 (with 0 ≤ x ≤ 6) mixed oxides catalysts were prepared by hydrotalcite route. All the oxides were calcined at 800 °C and characterized by different physico-chemical methods. The catalysts are then reduced before their use in the steam reforming of toluene. The XRD and TG/DTA confirmed the formation of the hydrotalcite structure for the non-calcined samples. The N2 adsorption/desorption results revealed that all catalysts correspond to mesoporous materials. The study by temperature programmed reduction (H2-TPR) showed that the reducibility of the catalysts is influenced by the nickel content. The CO2-TPD results showed that the catalyst with high magnesium content present the highest basicity. The Ni2Mg4Al1.8Ce0.2 shows the best toluene conversion among all the catalysts and it was then compared to a non-promoted catalyst. The spent catalysts were characterized by TPO, TG/DTA and XRD and they didn't reveal any coke formation.
DOI: 10.1016/j.ijhydene.2016.10.053
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Chemistry

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