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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Molecules (Basel, Switzerland) Switzerland), 2022-12, Vol.27 (24), p.9050
Hauptverfasser: Zhao, Hai-Peng, Zhu, Mei-Ling, Shi, Hao-Yan, Zhou, Qian-Qian, Chen, Rui, Lin, Shi-Wei, Tong, Mei-Hong, Ji, Ming-Hao, Jiang, Xia, Liao, Chen-Xing, Chen, Yan-Xin, Lu, Can-Zhong
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
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.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27249050