摘要
本论文利用一种温和的方法合成了CoOOH/(Ti,C)-Fe_2O_3(CTCF)纳米棒光阳极,并对其光电解水性能进行了研究.在可见光照和1.0 V偏压(相对可逆氢电极)条件下,CTCF光阳极产生的光电流密度为1.85 mA cm^(-2),远高于传统的α-Fe_2O_3光阳极的光电流密度.同时,该电极在强碱性电解液中(pH 14)可以保持较长时间的稳定性.
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 m A cm-2 at ＋1.23 V vs. reversible hydrogen electrode（RHE）, which is more than 20 times higher than that of pristine α-Fe2O3 photoanode（0.08 m A 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 α-Fe2O3 photoanode. Additionally, the longtime irradiation PEC water splitting of CTCF photoanode demonstrates its high stability at extreme voltage in NaOH（pH 14）.
作者
叶凯航
王子龙
黎海波
袁渝斐
黄勇潮
麦文杰
Kai-Hang Ye1;3;Zilong Wang1;Haibo Li3;Yufei Yuan1;Yongchao Huang2;Wenjie Mai
基金
preliminarily supported by the National Natural Science Foundation of China (21706295, 51772135 and 21376104)
the Natural Science Foundation of Guangdong Province (2017A030313055 and 2014A030306010
Jinan University (11617326 and 88017418)
