Szczegóły publikacji
Opis bibliograficzny
Chemical stability of high-entropy spinel in a high-pressure pure hydrogen atmosphere / Kamil DOMARADZKI, Anna ADAMCZYK, Michał PYZALSKI, Tomasz BRYLEWSKI, Marek Nowak, Mieczysław Jurczyk // Materials [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1996-1944. — 2024 — vol. 17 iss. 13 art. no. 3309, s. 1-13. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 12-13, Abstr. — Publikacja dostępna online od: 2024-07-04
Autorzy (6)
- AGHDomaradzki Kamil
- AGHAdamczyk Anna
- AGHPyzalski Michał
- AGHBrylewski Tomasz
- Nowak Marek
- Jurczyk Mieczysław
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 154264 |
|---|---|
| Data dodania do BaDAP | 2024-07-05 |
| Tekst źródłowy | URL |
| DOI | 10.3390/ma17133309 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Materials |
Abstract
This paper focuses on high-entropy spinels, which represent a rapidly growing group of materials with physicochemical properties that make them suitable for hydrogen energy applications. The influence of high-pressure pure hydrogen on the chemical stability of three high-entropy oxide (HEO) sinter samples with a spinel structure was investigated. Multicomponent HEO samples were obtained via mechanochemical synthesis (MS) combined with high-temperature thermal treatment. Performing the free sintering procedure on powders after MS at 1000 °C for 3 h in air enabled achieving single-phase (Cr0.2Fe0.2Mg0.2Mn0.2Ni0.2)3O4 and (Cu0.2Fe0.2Mg0.2Ni0.2Ti0.2)3O4 powders with a spinel structure, and in the case of (Cu0.2Fe0.2Mg0.2Ti0.2Zn0.2)3O4, a spinel phase in the amount of 95 wt.% was achieved. A decrease in spinel phase crystallite size and an increase in lattice strains were established in the synthesized spinel powders. The hydrogenation of the synthesized samples in a high-pressure hydrogen atmosphere was investigated using Sievert’s technique. The results of XRD, SEM, and EDS investigations clearly showed that pure hydrogen at temperatures of up to 250 °C and a pressure of up to 40 bar did not significantly impact the structure and microstructure of the (Cr0.2Fe0.2Mg0.2Mn0.2Ni0.2)3O4 ceramic, which demonstrates its potential for application in hydrogen technologies.
