Szczegóły publikacji
Opis bibliograficzny
Synergistic effects of rare-earth and lanthanoid elements on P123-modified Ni-HiMO catalysts for enhanced $CO_{2}$ methanation under thermal and DBD-assisted conditions / Minh NGUYEN-QUANG, Federico Azzolina-Jury, Bogdan SAMOJEDEN, Monika MOTAK, Patrick Da Costa // Catalysis Science & Technology ; ISSN 2044-4753. — 2024 — vol. 14 iss. 17, s. 5073–5085. — Bibliogr. s. 5083–5085, Abstr. — Publikacja dostępna online od: 2024-07-29. — M. Nguyen-Quang - dod. afiliacje: CNRS-ENSICAEN-Université de Caen, Caen, France ; Sorbonne Université, France
Autorzy (5)
- AGHNguyen Minh Quang
- Azzolina-Jury Federico
- AGHSamojeden Bogdan
- AGHMotak Monika
- da Costa Patrick
Dane bibliometryczne
| ID BaDAP | 156089 |
|---|---|
| Data dodania do BaDAP | 2024-11-15 |
| Tekst źródłowy | URL |
| DOI | 10.1039/D4CY00475B |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Catalysis Science & Technology |
Abstract
Optimizing catalysts for CO2 conversion targeting CH4 is a difficult task. In this work, NiMgAl-hydrotalcite-induced mixed-oxide (Ni-HiMO) catalysts were modified by polymer P123, promoted with Sc, Y, La, and Gd (SYLaG) in one step, and tested for thermal and DBD plasma conditions for the first time. The Ni(SYLaG)-HiMO@P123 catalysts were then evaluated from physicochemical to electrical aspects. It was observed that incorporating such elements altered the distribution of basicity, leading to increased CO2 adsorption and activation. Additionally, nickel-support interactions were altered by introducing d and f blocks. We found that this series of catalysts showed highly catalytic activities at low temperatures. Exceptionally, thermal tests on Y- and Gd-supported catalysts showed ca. 79.4-83.3% CO2 conversion at only 250 °C, which is much better than current data reported in the literature, and all studied catalysts showed 88-90% CO2 conversion, with CH4 selectivity being 99.8% at 300 °C (GHSV = 12 000 h−1). This catalyst series showed a huge potential for low-temperature CO2 methanation. Furthermore, the La-promoted catalyst was the best under plasma-assisted conditions, converting 82.8% at 28 W owing to its smallest Ni0 and lowest dielectric constant (ϵ = 9.43). These observations indicated that our catalyst synthesis method is very well developed both for thermal (mild conditions) and DBD plasma CO2 methanation. The catalytic performance robustly increased when the specific energy input threshold exceeded 3.4 eV per molecule for all catalysts. Lastly, charge transfer per half-cycle increased with increasing applied voltage but not as a linear function, reaching a maximum at 281.97 nC with La incorporation. Our research is one of the few investigations that have reported perspectives on both the physicochemical and electrical properties of hydrotalcite-based catalysts, simultaneously comparing thermal and plasma CO2 methanation activity.
