Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Well-Defined Iron Sites in Crystalline Carbon Nitride

MPG-Autoren
/persons/resource/persons237560

DeBeer,  Serena
Research Department DeBeer, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Genoux, A., Pauly, M., Rooney, C. L., Choi, C., Shang, B., McGuigan, S., et al. (2023). Well-Defined Iron Sites in Crystalline Carbon Nitride. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 145(38), 20739-20744. doi:10.1021/jacs.3c05417.


Zitierlink: https://hdl.handle.net/21.11116/0000-000D-DDEF-E
Zusammenfassung
Carbon nitride materials can be hosts for transition metal sites, but Mo ssbauer studies on iron complexes in carbon nitrides have always shown a mixture of environments and oxidation states. Here we describe the synthesis and characterization of a crystalline carbon nitride with stoichiometric iron sites that all have the same environment. The material (formula C6N9H2Fe0.4Li1.2Cl, abbreviated PTI/FeCl2) is derived from reacting poly(triazine imide)center dot LiCl (PTI/LiCl) with a low-melting FeCl2/KCl flux, followed by anaerobic rinsing with methanol. X-ray diffraction, X-ray absorption and Mossbauer spectroscopies, and SQUID magnetometry indicate that there are tetrahedral high-spin iron(II) sites throughout the material, all having the same geometry. The material is active for electrocatalytic nitrate reduction to ammonia, with a production rate of ca. 0.1 mmol cm(-2) h(-1) and Faradaic efficiency of ca. 80% at -0.80 V vs RHE.