Szczegóły publikacji
Opis bibliograficzny
Low temperature dry methane reforming over Ce, Zr and CeZr promoted Ni-Mg-Al hydrotalcite-derived catalysts / Radosław DĘBEK, Maria Elena Galvez, Franck Launay, Monika MOTAK, Teresa GRZYBEK, Patrick da Costa // International Journal of Hydrogen Energy ; ISSN 0360-3199. — 2016 — vol. 41 iss. 27, s. 11616–11623. — Bibliogr. s. 11622–11623, Abstr. — Publikacja dostępna online od: 2016-03-12. — R. Dębek – dod. afiliacja: Sorbonne Univerités ; Institut Jean Le Rond d'Alembert. — 1st international conference on hydrogen energy : 20–22 July 2015, Aveiro, Portugal
Autorzy (6)
- AGHDębek Radosław T.
- Galvez Maria Elena
- Launay Franck
- AGHMotak Monika
- AGHGrzybek Teresa
- da Costa Patrick
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 100964 |
|---|---|
| Data dodania do BaDAP | 2016-09-30 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ijhydene.2016.02.074 |
| Rok publikacji | 2016 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | International Journal of Hydrogen Energy |
Abstract
Hydrotalcite derived catalysts promoted with Ce, Zr and CeZr showed considerable activity in dry methane reforming (DMR) at low temperatures (550 degrees C). Direct methane decomposition resulting in the extensive formation of fishbone-type carbon nanofibers was substantially inhibited in the presence of Zr. Physicochemical characterization by means of N-2 adsorption, XRD, TPR and CO2-TPD evidenced narrower porosity and higher surface areas for the Zr-containing catalysts, together with the presence of smaller Ni particles (around 4 nm) and CO2 preferential adsorption in weak basic sites. Such small Ni particles are inactive towards the direct methane decomposition reaction. The ability of the Zr-containing catalysts to adsorb CO2 on weakbasic sites results in the formation of active carbonate species that are able to react with methane through the DMR route. The reverse Boudouard reaction occurs simultaneously to a certain extent in the presence of Zr-promoted catalyst, since carbon nanotube formations were visible on the catalyst surface upon its utilization.
