Szczegóły publikacji
Opis bibliograficzny
Combined effect of nitrogen-doped carbon and $NiCo_2O_4$ for electrochemical water splitting / Laura Kubińska, Mariusz Szkoda, Małgorzata Skorupska, Patrycja Grabowska, Marta GAJEWSKA, Jerzy P. Łukaszewicz, Anna Ilnicka // Scientific Reports [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 2045-2322. — 2024 — vol. 14 art. no. 26930, s. 1–14. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 12–14, Abstr. — Publikacja dostępna online od: 2024-11-06
Autorzy (7)
- Kubińska Laura
- Szkoda Mariusz
- Skorupska Małgorzata
- Grabowska Patrycja
- AGHGajewska Marta
- Łukaszewicz Jerzy P.
- Ilnicka Anna
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 157390 |
|---|---|
| Data dodania do BaDAP | 2025-01-10 |
| Tekst źródłowy | URL |
| DOI | 10.1038/s41598-024-74031-1 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Scientific Reports |
Abstract
Electrocatalytic water splitting for green hydrogen production necessitates effective electrocatalysts. Currently, commercial catalysts are primarily platinum-based. Therefore, finding catalysts with comparable catalytic activity but lower cost is essential. This paper describes spinel-structured catalysts containing nickel cobaltite NiCo2O4, graphene, and additionally doped with heteroatoms. The structure and elemental composition of the obtained materials were analyzed by research methods such as TEM, SEM-EDX, XRD, XPS, and Raman spectroscopy. The electrochemical measurements showed that hybrid materials containing nickel cobaltite NiCo2O4 doped with graphene are highly active catalysts in the hydrogen evolution reaction (Tafel slopes = 91 mV dec−1, overpotential = 468 mV and onset potential = -339 mV), while in the oxygen evolution reaction (Tafel slopes = 51 mV dec−1, overpotential = 1752 mV and onset potential = 370 mV), bare NiCo2O4 without the addition of carbon has a worse activity (for HER: Tafel slopes = 120 mV dec−1, overpotential - does not achieve and onset potential = -404 mV, for OER: Tafel slopes = 54 mV dec−1, overpotential = 1796 mV and onset potential = 410 mV). In terms of stability, comparable results were obtained for each synthesized compound for both the HER and OER reactions.
