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• W2770021704 endingPage "42760" @default.
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• W2770021704 abstract "The nitrogen-doping approach has been intensively adopted to improve various properties of metal oxides, especially for adjusting the energy band structure and extending the photoresponse range of oxide photocatalysts. However, the nitrogen doping behavior is still unintelligible and complex due to the diversity of compositions and crystal structures. In this work, new insights into the electronic structure and photoelectrochemical (PEC) properties of nitrogen-doped HNb3O8 were presented. On the one hand, we utilized an in situ experimental strategy to ascertain the effect of nitrogen doping on the energy band and photoelectrochemical (PEC) properties of HNb3O8 and nitrogen-doped HNb3O8 (N-HNb3O8). Their energy band level, donor densities, and interfacial charge transfer properties were studied by Mott-Schottky plots and electrochemical impedance spectroscopy. After nitrogen doping, the conduction band position is unusually descended by 0.23 eV, the valance band position is raised by 0.51 eV, the donor density (Nd) is increased from 3.71 × 1021 to 6.46 × 1021 cm-3, and interfacial charge transfer efficiency is reduced, though. On the other hand, density functional theoretical calculations were also conducted, so as to understand the electronic structures of HNb3O8 and N-HNb3O8. After nitrogen doping, the electronic structure is modified due to the upshift of the valance band edge consisting of hybrid N 2p and O 2p orbitals and the downshift of the conduction band edge consisting of the H 1s and Nb 4d orbitals. Furthermore, these insights into the behavior of nitrogen-doped semiconductors have important guiding significance toward their potential applications." @default.
• W2770021704 created "2017-12-04" @default.
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• W2770021704 date "2017-11-28" @default.
• W2770021704 modified "2023-10-18" @default.
• W2770021704 title "New Insights into the Electronic Structure and Photoelectrochemical Properties of Nitrogen-Doped HNb₃O₈ via a Combined in Situ Experimental and DFT Investigation" @default.
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• W2770021704 doi "https://doi.org/10.1021/acsami.7b13704" @default.
• W2770021704 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/29143523" @default.
• W2770021704 hasPublicationYear "2017" @default.
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