A novel CoOOH/(Ti, C)-Fe2O3 nanorod photoanode for photoelectrochemical water splitting

作者：Ye, Kai-Hang; Wang, Zilong; Li, Haibo; Yuan, Yufei; Huang, Yongchao^*; Mai, Wenjie^*

来源：Science China-Materials, 2018, 61(6): 887-894.

DOI：10.1007/s40843-017-9199-5

• photoelectrochemistry
• water splitting
• doping
• ferric oxide

In this work, we demonstrate the CoOOH/(Ti,C)-Fe2O3 (CTCF) nanorods prepared by a facile approach as well as their implementation as photoanodes for photoelectrochemical (PEC) water splitting. The photocurrent density of CTCF photoanode is 1.85 mA cm(-2) at + 1.23 V vs. reversible hydrogen electrode (RHE), which is more than 20 times higher than that of pristine alpha-Fe2O3 photoanode (0.08 mA cm(-2)). The incident-photo-to-current conversion efficiency, applied bias photo-to-current efficiency and transfer efficiency of CTCF photoanode reaches 31.2% at 380 nm (+ 1.23 V vs. RHE), 0.11% (+ 1.11 V vs. RHE), 68.2% (+ 1.23 V vs. RHE) respectively, which are much higher than those of pristine alpha-Fe2O3 photoanode. Additionally, the longtime irradiation PEC water splitting of CTCF photoanode demonstrates its high stability at extreme voltage in NaOH (pH 14).

• 出版日期2018-6
• 单位广州大学; 中山大学; 暨南大学