光电流
氧化锡
表面改性
材料科学
化学工程
基质(水族馆)
纳米技术
图层(电子)
催化作用
兴奋剂
原子层沉积
氧化物
氟
锡
化学
光电子学
冶金
地质学
工程类
海洋学
生物化学
作者
Siliang Kuang,Meng Wang,Zhibin Geng,Xiaofeng Wu,Yu Sun,Wei Ma,Deshun Chen,Jinghai Liu,Shouhua Feng,Keke Huang
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2019-08-14
卷期号:7 (17): 14347-14352
被引量:12
标识
DOI:10.1021/acssuschemeng.9b03425
摘要
Fe2TiO5 is recognized as a novel and promising photoanode material for solar water splitting. Here, nanostructured Fe2TiO5 was fabricated on a fluorine-doped tin oxide substrate by an electrospray deposition technique. We utilized surface Al3+ treatment and FeOOH modification to improve performance of the Fe2TiO5 photoanode. After this two-step enhancement, the photocurrent density of the final Fe2TiO5 photoanode is 0.52 mA cm–2 at 1.23 VRHE which is 2.8 times that of the pristine one, and the onset potential is 200 mV lower than before. The enhanced performance can be attributed to a synergetic effect of surface Al3+ treatment and FeOOH modification, since the surface Al3+ treatment accelerates charge transport while the FeOOH layer improves catalytic activity. This strategy of surface modification provides an effective pathway for rational designing of original photoanodes with high practical performance.
科研通智能强力驱动
Strongly Powered by AbleSci AI