Zhang, Rong Fang, Yiyu Chen, Tao Qu, Fengli Liu, Zhiang Du, Gu Asiri, Abdullah M. Gao, Tao Sun, Xuping Enhanced Photoelectrochemical Water Oxidation Performance of Fe<sub>2</sub>O<sub>3</sub> Nanorods Array by S Doping As a promising candidate for photoelectrochemical (PEC) water oxidation, the photoelectrochemical water splitting efficiency of hematite (Fe<sub>2</sub>O<sub>3</sub>) is limited by its low electron mobility. In this work, we report a new strategy for great enhancement of PEC water oxidation activity on Fe<sub>2</sub>O<sub>3</sub>. The S-doped Fe<sub>2</sub>O<sub>3</sub> (S:Fe<sub>2</sub>O<sub>3</sub>) nanorods array on a Ti plate shows a substantially increased photocurrent density of 1.42 mA cm<sup>–2</sup> at 1.23 V vs RHE in 1.0 M NaOH under simulated sunlight irradiation (AM 1.5G, 100 mW cm<sup>–2</sup>), 2.45 times that of Fe<sub>2</sub>O<sub>3</sub> counterpart (0.58 mA cm<sup>–2</sup>). Both density functional theory calculations and experimental measurements verify that the superior activity is contributed to the enhanced electron mobility after S doping. This study offers an attractive photoanode in water-splitting devices for solar hydrogen production application. Fe 2 O 3 Nanorods Array;PEC water oxidation activity;density;photoelectrochemical water splitting efficiency;Enhanced Photoelectrochemical Water Oxidation Performance;1.0 M NaOH;S-doped Fe 2 O 3;cm;Fe 2 O 3;electron mobility;mA;1.23 V vs RHE;hydrogen production application;AM 1.5 G 2017-08-09
    https://acs.figshare.com/articles/journal_contribution/Enhanced_Photoelectrochemical_Water_Oxidation_Performance_of_Fe_sub_2_sub_O_sub_3_sub_Nanorods_Array_by_S_Doping/5301766
10.1021/acssuschemeng.7b01799.s001