Study of N-doped TiO 2 thin films for photoelectrochemical hydrogen generation from water
Abstract: The present work deals with nitrogen-doped stoichiometric TiO2:N and non-stoichiometric TiO2−x:N thin films deposited by means of dc-pulsed reactive sputtering for application as photoanodes for hydrogen generation from water, using solar energy. Stoichiometric thin films of TiO2 crystallize as a mixture of anatase and rutile while rutile phase predominates in TiO2:N at higher nitrogen flow rates as shown by X-ray diffraction at grazing incidence, XRD GID. Lack of bulk nitridation of stoichiometric TiO2:N is indicated by valence-to-core X-ray emission spectroscopy, XES, analysis. The energy band gap as well as flat band potential remain almost unaffected by increasing nitrogen flow rate in this case. In contrast to that, non-stoichiometric thin films of TiO2‑x:N demonstrate systematic evolution of the structural, morphological, optical and photolectrochemical properties upon increasing level of nitrogen doping. Pronounced changes in the growth pattern of non-stoichiometric TiO2-x:N upon varied nitrogen flow rate, demonstrated by scanning electron microscopy, SEM, can be easily correlated with the crystallographic properties studied by XRD GID. Relative positions of Kβ’’ XES lines of the TiO2-x:N thin films, which depend strongly on the nature of the ligands and their local coordination, change with the increasing nitrogen flow. Doping of nonstoichiometric titanium dioxide with nitrogen shifts the absorption spectrum towards the visible range and increases considerably the flat band potential which is beneficial for water photolysis.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Study of N-doped TiO 2 thin films for photoelectrochemical hydrogen generation from water ; volume:13 ; number:1 ; year:2015 ; extent:12
Open chemistry ; 13, Heft 1 (2015) (gesamt 12)
- Creator
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Kollbek, Kamila
Sikora, Marcin
Kapusta, Czeslaw
Trenczek-Zajac, Anita
Radecka, Marta
Zakrzewska, Katarzyna
- DOI
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10.1515/chem-2015-0089
- URN
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urn:nbn:de:101:1-2410151801447.742197498612
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:25 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Kollbek, Kamila
- Sikora, Marcin
- Kapusta, Czeslaw
- Trenczek-Zajac, Anita
- Radecka, Marta
- Zakrzewska, Katarzyna
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Conductive Cu doped TiO2 nanotubes for enhanced photoelectrochemical methanol oxidation and concomitant hydrogen generation
Charge‐compensated n‐doped π‐conjugated polymers : toward both thermodynamic stability of n‐doped states in water and high electron conductivity
Preparation and characterization of N-doped ZnO and N-doped TiO2 beads for photocatalytic degradation of phenol and ammonia
Charge‐Compensated N‐Doped π ‐Conjugated Polymers: Toward both Thermodynamic Stability of N‐Doped States in Water and High Electron Conductivity
Lucky Seven-Membered Rings in N-Doped Nonplanar Nanographenes
Nonlinear optical effects in pure and N-doped semiconductors
Regulating the Charge Migration in CuInSe 2/N‐Doped Carbon Nanorod Arrays via Interfacial Engineering for Boosting Photoelectrochemical Water Splitting
Photoelectrochemical properties of N-doped self-organized titania nanotube layers with different thicknesses
Characterization of a highly efficient N-doped TiO 2 photocatalyst prepared via factorial design
Molecular hydrogen in the N-doped LuH3 system as a possible path to superconductivity
N-Doped Carbon NanoWalls for Power Sources
N-Doped Graphene Oxide Nanoparticles Studied by EPR
Conductive Cu doped TiO2 nanotubes for enhanced photoelectrochemical methanol oxidation and concomitant hydrogen generation
Charge‐compensated n‐doped π‐conjugated polymers : toward both thermodynamic stability of n‐doped states in water and high electron conductivity
Preparation and characterization of N-doped ZnO and N-doped TiO2 beads for photocatalytic degradation of phenol and ammonia
Charge‐Compensated N‐Doped π ‐Conjugated Polymers: Toward both Thermodynamic Stability of N‐Doped States in Water and High Electron Conductivity
Lucky Seven-Membered Rings in N-Doped Nonplanar Nanographenes
Nonlinear optical effects in pure and N-doped semiconductors
Regulating the Charge Migration in CuInSe 2/N‐Doped Carbon Nanorod Arrays via Interfacial Engineering for Boosting Photoelectrochemical Water Splitting
Photoelectrochemical properties of N-doped self-organized titania nanotube layers with different thicknesses
Characterization of a highly efficient N-doped TiO 2 photocatalyst prepared via factorial design
Molecular hydrogen in the N-doped LuH3 system as a possible path to superconductivity
N-Doped Carbon NanoWalls for Power Sources
N-Doped Graphene Oxide Nanoparticles Studied by EPR
Conductive Cu doped TiO2 nanotubes for enhanced photoelectrochemical methanol oxidation and concomitant hydrogen generation
Charge‐compensated n‐doped π‐conjugated polymers : toward both thermodynamic stability of n‐doped states in water and high electron conductivity
Preparation and characterization of N-doped ZnO and N-doped TiO2 beads for photocatalytic degradation of phenol and ammonia
Charge‐Compensated N‐Doped π ‐Conjugated Polymers: Toward both Thermodynamic Stability of N‐Doped States in Water and High Electron Conductivity
Lucky Seven-Membered Rings in N-Doped Nonplanar Nanographenes
Nonlinear optical effects in pure and N-doped semiconductors