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  Metal-Free Photocatalytic Graphitic Carbon Nitride on p-Type Chalcopyrite as a Composite Photocathode for Light-Induced Hydrogen Evolution

Yang, F., Lublow, M., Orthmann, S., Merschjann, C., Tyborski, T., Rusu, M., et al. (2012). Metal-Free Photocatalytic Graphitic Carbon Nitride on p-Type Chalcopyrite as a Composite Photocathode for Light-Induced Hydrogen Evolution. ChemSusChem: chemistry & sustainability, energy & materials, 5(7), 1227-1232. doi:10.1002/cssc.201100691.

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C3N4-Photocathode ChemSusChem 23_02_2012 accepted revised.pdf (beliebiger Volltext), 2MB
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C3N4-Photocathode ChemSusChem 23_02_2012 accepted revised.pdf
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2012
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Wiley
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 Urheber:
Yang, Florent1, Autor
Lublow, Michael2, Autor           
Orthmann, Steven1, Autor
Merschjann, Christoph1, Autor
Tyborski, Tobias1, Autor
Rusu, Marin1, Autor
Kubala, Sven1, Autor
Thomas, Arne3, Autor
Arrigo, Rosa2, Autor           
Hävecker, Michael1, Autor           
Schedel-Niedrig, Thomas1, Autor
Affiliations:
1Helmholtz-Zentrum Berlin fuer Materialien und Energy GmbH, Division Solar Energy Research, Elektronenspeicherring BESSY II, ou_persistent22              
2Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
3Technische Universität Berlin, Fakultät II, Institut für Chemie, Hardenbergstr. 40, 10623 Berlin (Germany), ou_persistent22              

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Schlagwörter: carbon nitride;hydrogen;photochemistry;photoelectron spectroscopy;thin films
 Zusammenfassung: Recently, it has been shown that an abundant material, polymeric carbon nitride, can produce hydrogen from water under visible-light irradiation in the presence of a sacrificial donor. We present herein the preparation and characterization of graphitic carbon nitride (g-C3N4) films on p-type semiconducting CuGaSe2 chalcopyrite thin-film substrates by thermal condensation of a dicyandiamide precursor under inert-gas conditions. Structural and surface morphological studies of the carbon nitride films suggest a high porosity of g-C3N4 thin films consisting of a network of nanocrystallites. Photoelectrochemical investigations show light-induced hydrogen evolution upon cathodic polarization for a wide range of proton concentrations in the aqueous electrolyte. Additionally, synchrotron radiation-based photoelectron spectroscopy has been applied to study the surface/near-surface chemical composition of the utilized g-C3N4 film photocathodes. For the first time, it has been shown that g-C3N4 films coated on p-type CuGaSe2 thin films can be successfully applied as new photoelectrochemical composite photocathodes for light-induced hydrogen evolution.

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Sprache(n): eng - English
 Datum: 2012-07-032012-07
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1002/cssc.201100691
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Titel: ChemSusChem : chemistry & sustainability, energy & materials
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 5 (7) Artikelnummer: - Start- / Endseite: 1227 - 1232 Identifikator: Anderer: 1864-5631
CoNE: https://pure.mpg.de/cone/journals/resource/1864-5631