Issue 33, 2014

Surface treatment with Al3+on a Ti-doped α-Fe2O3 nanorod array photoanode for efficient photoelectrochemical water splitting

Abstract

In this paper, we present the fabrication of Ti-doped α-Fe2O3 and surface treatment with Al3+ for application as a photoanode in photoelectrochemical water splitting. The Ti-doped α-Fe2O3 with Al3+ treatment shows a 100 mV cathodic shift of the onset potential and a notable improvement of the photocurrent density. The samples were characterized by SEM, TEM, HRTEM, XRD, Raman, UV-vis and XPS to obtain the information after surface treatment. Based on electrochemistry and photoelectrochemistry techniques, it appears that surface treatment with Al3+ passivates the surface states and decreases the accumulation of charge at the surface of Ti–Fe2O3. The results show that Ti-doped Fe2O3 with Al3+ surface treatment can be used as an efficient photoanode for photoelectrochemical water splitting.

Graphical abstract: Surface treatment with Al3+on a Ti-doped α-Fe2O3 nanorod array photoanode for efficient photoelectrochemical water splitting

Supplementary files

Article information

Article type
Paper
Submitted
20 May 2014
Accepted
17 Jun 2014
First published
19 Jun 2014

J. Mater. Chem. A, 2014,2, 13705-13712

Surface treatment with Al3+on a Ti-doped α-Fe2O3 nanorod array photoanode for efficient photoelectrochemical water splitting

Z. Fu, T. Jiang, L. Zhang, B. Liu, D. Wang, L. Wang and T. Xie, J. Mater. Chem. A, 2014, 2, 13705 DOI: 10.1039/C4TA02527J

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