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

被引：113

作者：

Fu, Zewen ^{[1
]}

Jiang, Tengfei ^{[1
]}

Zhang, Lijing ^{[1
]}

Liu, Bingkun ^{[1
]}

Wang, Dejun ^{[1
,3
]}

Wang, Lingling ^{[2
]}

Xie, Tengfeng ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, State Key Lab Theoret & Computat Chem, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

[3] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 33期

关键词：

HEMATITE THIN-FILMS; HYDROGEN-PRODUCTION; OXIDATION; OXIDE; NANOSTRUCTURE; PHOTOVOLTAGE; DYNAMICS;

D O I：

10.1039/C4TA02527J

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

In this paper, we present the fabrication of Ti-doped alpha-Fe2O3 a. and surface treatment with Al3+ for application as a photoanode in photoelectrochemical water splitting. The Ti-doped alpha-Fe2O3 a 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.

引用

页码：13705 / 13712

页数：8

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