Szczegóły publikacji
Opis bibliograficzny
Tuning the electrocatalytic properties of trimetallic pentlandites: stability and catalytic activity as a function of material form and selenium concentration / Andrzej MIKUŁA, Maciej KUBOWICZ, Mathias Smialkowski, Sebastian Sanden, Ulf-Peter Apfel // ACS Materials Letters [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 2639-4979. — 2024 — vol. 6 iss. 5, s. 1581–1592. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 1591–1592, Abstr. — Publikacja dostępna online od: 2024-03-22
Autorzy (5)
- AGHMikuła Andrzej
- AGHKubowicz Maciej
- Smialkowski Mathias
- Sanden Sebastian
- Apfel Ulf-Peter
Dane bibliometryczne
| ID BaDAP | 153227 |
|---|---|
| Data dodania do BaDAP | 2024-06-04 |
| Tekst źródłowy | URL |
| DOI | 10.1021/acsmaterialslett.4c00024 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | ACS Materials Letters |
Abstract
Pentlandites are one possible cost-effective alternative to platinum group metals for green hydrogen production. This study delves into the catalytic performance of trimetallic pentlandite systems, exploring the influence of selenium concentration and material form on their efficiency by combining the investigation of materials in various forms (powder catalysts, ingots, and highly densified pellets) with a computational investigation. The experimentally observed solubility limit of selenium was clarified based on the formation energies approach. The best and most stable defect combination, namely, Se:S substitution and S vacancy, was identified and correlated with improved catalytic properties of the systems with small Se addition. Further findings highlight the evolving importance of intrinsic material properties, such as bond properties, intermetallic interactions, or electronic structure, over surface effects, including the activation process, as the material density increases. The research contributes valuable insight into the intricate mechanisms governing pentlandite catalysis. Understanding these dynamics allows for intentional modifications, advancing the application of pentlandites in hydrogen production.
