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| Photoelectrochemical setup to evaluate solar hydrogen conversion materials.
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| Schematic approach for the synthesis, characterization and evaluation of the photoactive materials.
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Solar hydrogen conversion represents a potentially limitless energy source that would revolutionize our approach to energy. However, the discovery of new, more efficient photocatalysts for water splitting is still very challenging. Wide band-gap semiconductors, such as TiO2, are the most promising materials in the field of solar hydrogen conversion due to their good stability and catalytic activity, but their poor visible light absorption represents a major problem. To reduce the band-gap, anion-doped TiO2-xAx materials are prepared in our lab, where A (=C, N, or P) can either substitute for oxygen in the titania lattice or be present in interstitial sites. In order to develop better materials for solar energy applications, in-depth photoelectrochemical and spectroscopic characterization of anion-doped metal oxide materials is being conducted. In particular, our lab specializes in characterizing dopant species using solid-state NMR.
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| 3-electrodes PEC illuminated with a sunlight simulator. |
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| Chemistry lab: Preparation of electrodes for solar hydrogen conversion.
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