Covalent bonding mediated interfacial charge transfer between BiVO<sub>4</sub> and {Co<sub>4</sub>O<sub>4</sub>} cubanes for enhanced photoelectrochemical water splitting
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Autor:innen
Autor:in (Körperschaft)
Publikationsdatum
15.10.2025
Typ der Arbeit
Studiengang
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Advanced Functional Materials
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
Ausgabe / Nummer
Seiten / Dauer
e23057
Patentnummer
Verlag / Herausgebende Institution
Wiley
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Although molecular cocatalysts (MCs) have demonstrated significant application potential for photoelectrochemical (PEC) water splitting, the immobilization and stabilization of them for long-term application remains challenging. Herein, an integrated photoanode (BiVO4@NM88B(Fe)/Co4O4) is developed by immobilizing Co4O4 cubanes onto NH2-MIL-88B(Fe) (NM88B(Fe)) decorated BiVO4 via site-isolation strategy. The unoccupied coordination sites in NM88B(Fe) covalently bound to both Co4O4 and BiVO4, which significantly decreases the interfacial charge transfer resistance of BiVO4@NM88B(Fe)/Co4O4 and achieve prolonged stability. More importantly, the oxygen evolution cocatalyst (OEC) NM88B(Fe)/Co4O4 remarkably lowered the energy barrier and thermodynamically favored surface water oxidation. Consequently, the photocurrent density of BiVO4@NM88B(Fe)/Co4O4 photoanode achieved up to 5.26 mA·cm−2 at 1.23 VRHE, which is 3.73 times higher than that of bare BiVO4. This work presents a site-isolation strategy to overcome molecular catalyst stabilization challenges in PEC systems while offering crucial insights into designing efficient charge transfer channels between OECs and semiconductors for enhanced water splitting performance.
Schlagwörter
BiVO4@NM88B(Fe)/Co4O4 photoanodes, Metal organic frameworks, Molecular catalysts, Photoelectrochemical water splitting
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1616-301X
1616-3028
1616-3028
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
Li, H., Hou, Z., Hu, Y., Wang, J., Li, A., & Corvini, P. (2025). Covalent bonding mediated interfacial charge transfer between BiVO<sub>4</sub> and {Co<sub>4</sub>O<sub>4</sub>} cubanes for enhanced photoelectrochemical water splitting. Advanced Functional Materials, e23057. https://doi.org/10.1002/adfm.202523057