Cerium-Doped Iron Oxide Nanorod Arrays for Photoelectrochemical Water Splitting
In this work, a simple one-step hydrothermal method was employed to prepare the Ce-doped Fe O ordered nanorod arrays (CFT). The Ce doping successfully narrowed the band gap of Fe O , which improved the visible light absorption performance. In addition, with the help of Ce doping, the recombination o...
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Veröffentlicht in: | Molecules (Basel, Switzerland) Switzerland), 2022-12, Vol.27 (24), p.9050 |
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Hauptverfasser: | , , , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | In this work, a simple one-step hydrothermal method was employed to prepare the Ce-doped Fe
O
ordered nanorod arrays (CFT). The Ce doping successfully narrowed the band gap of Fe
O
, which improved the visible light absorption performance. In addition, with the help of Ce doping, the recombination of electron/hole pairs was significantly inhibited. The external voltage will make the performance of the Ce-doped sample better. Therefore, the Ce-doped Fe
O
has reached superior photoelectrochemical (PEC) performance with a high photocurrent density of 1.47 mA/cm
at 1.6 V vs. RHE (Reversible Hydrogen Electrode), which is 7.3 times higher than that of pristine Fe
O
nanorod arrays (FT). The Hydrogen (H
) production from PEC water splitting of Fe
O
was highly improved by Ce doping to achieve an evolution rate of 21 μmol/cm
/h. |
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ISSN: | 1420-3049 1420-3049 |
DOI: | 10.3390/molecules27249050 |