Szczegóły publikacji
Opis bibliograficzny
On the structure-reactivity and synthesis strategy of mixed oxides prepared by microwave-assisted solution combustion synthesis: XAS/XRD operando studies / Paulina SUMMA, Katarzyna Świrk Da Costa, Li Li, Monika MOTAK, Marta GAJEWSKA, Changwei Hu, Patrick Da Costa // Applied Catalysis. B, Environment and Energy ; ISSN 0926-3373. — 2026 — vol. 382 art. no. 125986, s. 1–15. — Bibliogr. s. 14–15, Abstr. — Publikacja dostępna online od: 2025-09-19. — P. Summa - dod. afiliacja: Sorbonne Université, France
Autorzy (7)
- AGHSumma Paulina
- Świrk Da Costa Katarzyna
- Li Li
- AGHMotak Monika
- AGHGajewska Marta
- Hu Changwei
- da Costa Patrick
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 162929 |
|---|---|
| Data dodania do BaDAP | 2025-10-08 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.apcatb.2025.125986 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Applied Catalysis, B, Environmental |
Abstract
A series of mixed-oxide Ni-Mg-Al CO2 hydrogenation catalysts was prepared with microwave assisted solution combustion synthesis. The physicochemical properties were influenced by the amount of urea delivered for the combustion, altering the texture and pore development. Lower microwave powers improve the surface basicity. Most significant, however, is the oxygen-deficient periclase phase, which promoted the partial formation of NiAl2O4 under reduction conditions and is proposed to indirectly enhance catalytic performance through improved surface structural reactivity. Two microwave-derived samples were compared with their counterparts obtained via thermal solution combustion synthesis and thermally decomposed hydrotalcites and examined under operando conditions with XRD-XAS. The results confirmed that incomplete reduction of nickel, followed with formation of NiAl2O4 phase delivers the most catalytically active materials. Spinel was found to improve textural properties and led to a formation of new strong surface basic sites able to interact strongly with CO2 and weakly with CO.
