Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Incorporation of Cu/Ni in Ordered Mesoporous Co-Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O2 Batteries

Priamushko, T., Budiyanto, E., Eshraghi, N., Weidenthaler, C., Kahr, J., Jahn, M., et al. (2022). Incorporation of Cu/Ni in Ordered Mesoporous Co-Based Spinels to Facilitate Oxygen Evolution and Reduction Reactions in Alkaline Media and Aprotic Li−O2 Batteries. ChemSusChem, 15(5): e202102404. doi:10.1002/cssc.202102404.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Priamushko, Tatiana1, Autor
Budiyanto, Eko2, Autor           
Eshraghi, Nicolas3, Autor
Weidenthaler, Claudia4, Autor           
Kahr, Jürgen3, Autor
Jahn, Marcus3, Autor
Tüysüz, Harun2, Autor           
Kleitz, Freddy1, Autor
Affiliations:
1Department of Inorganic Chemistry-Functional Materials, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Wien, Vienna, Austria, ou_persistent22              
2Research Group Tüysüz, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950290              
3Center for Low-Emission Transport, Electric Vehicle Technologies, AIT Austrian Institute of Technology GmbH, Giefinggasse 2, 1210 Wien, Vienna, Austria, ou_persistent22              
4Research Group Weidenthaler, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950291              

Inhalt

einblenden:
ausblenden:
Schlagwörter: electrocatalysts; mesoporous materials; non-noble metals; oxygen evolution reaction; oxygen reduction reaction
 Zusammenfassung: Ordered mesoporous CuNiCo oxides were prepared via nanocasting with varied Cu/Ni ratio to establish its impact on the electrochemical performance of the catalysts. Physicochemical properties were determined along with the electrocatalytic activities toward oxygen evolution/reduction reactions (OER/ORR). Combining Cu, Ni, and Co allowed creating active and stable bifunctional electrocatalysts. CuNiCo oxide (Cu/Ni≈1 : 4) exhibited the highest current density of 411 mA cm−2 at 1.7 V vs. reversible hydrogen electrode (RHE) and required the lowest overpotential of 312 mV to reach 10 mA cm−2 in 1 m KOH after 200 cyclic voltammograms. OER measurements were also conducted in the purified 1 m KOH, where CuNiCo oxide (Cu/Ni≈1 : 4) also outperformed NiCo oxide and showed excellent chemical and catalytic stability. For ORR, Cu/Ni incorporation provided higher current density, better kinetics, and facilitated the 4e pathway of the oxygen reduction reaction. The tests in Li−O2 cells highlighted that CuNiCo oxide can effectively promote ORR and OER at a lower overpotential.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2021-11-152021-12-142022-03-08
 Publikationsstatus: Online veröffentlicht
 Seiten: 13
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1002/cssc.202102404
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: ChemSusChem
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 15 (5) Artikelnummer: e202102404 Start- / Endseite: - Identifikator: ISSN: 1864-5631
CoNE: https://pure.mpg.de/cone/journals/resource/1864-5631