Szczegóły publikacji
Opis bibliograficzny
Syngas production from dry methane reforming over yttrium-promoted nickel-KIT-6 catalysts / Katarzyna ŚWIRK, Maria Elena Gálvez, Monika MOTAK, Teresa GRZYBEK, Magnus Rønning, Patrick Da Costa // International Journal of Hydrogen Energy ; ISSN 0360-3199. — 2019 — vol. 44 iss. 1, s. 274–286. — Bibliogr. s. 284–286, Abstr. — Publikacja dostępna online od: 2018-03-21. — K. Świrk - dod. afiliacja: Sorbonne Université, Institut Jean Le Rond d'Alembert, Saint-Cyr-l'École, France. — The 4th international conference on Hydrogen energy, 11 - 13 September 2017, University of Surrey, England
Autorzy (6)
- AGHŚwirk Katarzyna
- Galvez Maria Elena
- AGHMotak Monika
- AGHGrzybek Teresa
- Rønning Magnus
- da Costa Patrick
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 119383 |
|---|---|
| Data dodania do BaDAP | 2019-02-05 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ijhydene.2018.02.164 |
| Rok publikacji | 2019 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | International Journal of Hydrogen Energy |
Abstract
Dry reforming of methane was studied over Ni,Y-promoted KIT-6 ordered mesoporous silicas, prepared by incipient impregnation (nickel content 12 wt%, yttrium content of 4 wt%, 8 wt% or 12 wt%). The catalysts were characterized by XRF, FT-IR, TGA/DSC-MS, N2-adsorption, TEM, HRTEM, XRD and TPR-H2. The promotion with 8 wt% Y (Y/Si = 0.05) resulted in the highest activity and H2/CO molar ratio closer to the stoichiometric value at temperatures from 600 to 750 °C. The characterization results of the yttrium promoted materials showed higher reducibility of the bulk NiO, bigger Ni crystallite size after reduction and DRM test, and better dispersion of nickel in the channels of the KIT-6 support. Additionally, larger Ni particles were observed on the external surface of the support, which may be related to catalytic selectivity towards carbon forming reactions. Upon dry methane reforming the segregated phases of Niº Y2O3, and possibly Y2Si2O7 were registered. No presence of a Ni,Y alloy was observed. © 2018 Hydrogen Energy Publications LLC
