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Folke, Jan ; Dembélé, Kassiogé ; Girgsdies, Frank ; Song, Huiqing ; Eckert, Rene ; Reitmeier, Stephan ; Reitzmann, Andreas ; Schlögl, Robert ; Lunkenbein, Thomas ; Ruland, Holger:
Promoter effect on the reduction behavior of wuestite-based catalysts for ammonia synthesis.
In: Catalysis Today.
Bd. 387
(2022)
Heft SI
.
- S. 12-22.
ISSN 0920-5861
DOI: https://doi.org/10.1016/j.cattod.2021.03.013
Abstract
Ammonia synthesis remains one of the most important catalytic processes since it enables efficient hydrogen storage and provides the basis for the production of fertilizers. Herein, complementary bulk and local analytical techniques were combined to investigate the effect of selected promoters (Al, K, Ca) on the reduction of wuestite into alpha-iron and their catalytic performance for ammonia synthesis. The use of promoters appears to have a positive effect on the wuestite-derived catalyst in ammonia synthesis. The promoters seemingly act as a binder for wuestite grains and impede the reduction and disproportionation events of wuestite precursors resulting in an increased catalytic performance. This effect is associated with an increase of surface area and mesoporosity. The study delivers new insights into the interplay of structure and promoters in wuestite-based catalysts.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | WOS:000753620200004 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 12 Jun 2025 12:33 |
| Letzte Änderung: | 12 Jun 2025 12:33 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/93682 |