Szczegóły publikacji
Opis bibliograficzny
Synthesis and catalytic performance of high-entropy rare-earth perovskite nanofibers: ($Y_{0.2}La_{0.2}Nd_{0.2}Gd_{0.2}Sm_{0.2})CoO_3$ in low-temperature carbon monoxide oxidation / Paweł A. KRAWCZYK, Jan WYRWA, Władysław W. KUBIAK // Materials [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1996-1944 . — 2024 — vol. 17 iss. 8 art. no. 1883, s. 1–12. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 10–12, Abstr. — Publikacja dostępna online od: 2024-04-19
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 152893 |
|---|---|
| Data dodania do BaDAP | 2024-05-16 |
| Tekst źródłowy | URL |
| DOI | 10.3390/ma17081883 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Materials |
Abstract
This study investigated the catalytic properties of low-temperature oxidation of carbon monoxide, focusing on (Y0.2La0.2Nd0.2Gd0.2Sm0.2)CoO3 synthesized via a glycothermal method using 1,4-butanediol and diethylene glycol at 250 °C. This synthesis route bypasses the energy-intensive sintering process at 1200 °C while maintaining a high-entropy single-phase structure. The synthesized material was characterized structurally and chemically by X-ray diffraction and SEM/EDX analyses. The material was shown to form nanofibers of (Y0.2La0.2Nd0.2Gd0.2Sm0.2)CoO3, thereby increasing the active surface area for catalytic reactions, and crystallize in the model Pbnm space group of distorted perovskite cell. Using a custom setup to investigate catalytic properties of (Y0.2La0.2Nd0.2Gd0.2Sm0.2)CoO3, the CO oxidation behavior of those high-entropy perovskite oxide was investigated, showing an overall conversion of 78% at 50 °C and 97% at 100 °C. These findings highlight the effective catalytic activity of nanofibers of (Y0.2La0.2Nd0.2Gd0.2Sm0.2)CoO3 under mild conditions and their versatility in various catalytic processes of robust CO neutralization. The incorporation of rare-earth elements into a high-entropy structure could impart unique catalytic properties, promoting a synergistic effect that enhances performance.
