• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Enhanced interface charge transfer via n-n WO3/Ti-Fe2O3 heterojunction formation for water splitting
【24h】

Enhanced interface charge transfer via n-n WO3/Ti-Fe2O3 heterojunction formation for water splitting

机译：通过N-N WO3 / TI-FE2O3异质结形成的增强型接口电荷转移

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Inevitable drawbacks on alpha-Fe2O3 photoanodes, such as poor conductivity, short hole diffusion length, high electron-hole recombination rate, limit their photoelectrochemical (PEC) performance for water oxidation. The construction of heterojunction is an effective approach to improve the PEC performance of photoanodes. Herein, we report the design of the WO3/Ti-Fe2O3 heterojunction photoanodes, which are synthesized by two simple hydrothermal method. The optimized WO3/Ti-Fe2O3 photoanode shows remarkably improved photocurrent of 2.15 mA/cm(2) at 1.23 V versus reversible hydrogen electrode (RHE) without additional cocatalyst, which is higher than that of previous literatures. The improvement benefits from reduced charge transfer resistance in the bulk of Ti-Fe2O3 photoanode and improved charge separation efficiency, which can been further confirmed by electrochemical impedance spectroscopy (EIS), the transient photovoltage (TPV) and the work function (WF) measurement. The present work also provide new opportunities in developing high performance photoanodes for PEC water splitting. Published by Elsevier B.V.
机译：在alpha-fe2O3光电码上的必然缺点，例如导电性差，短孔扩散长度，高电子 - 空穴重组率，限制其光电化学（PEC）的水氧化性能。异质结的构造是提高光阳极PEC性能的有效方法。在此，我们报告了WO3 / TI-FE2O3异质结光锅的设计，通过两种简单的水热法合成。优化的WO3 / TI-FE2O3 PhotoNode显示出在1.23V的1.23V与可逆氢电极（RHE）下显着改善了2.15mA / cm（2）的光电流，而无需额外的助催化剂，其高于先前的文献。通过电化学阻抗光谱（EIS），瞬态光伏（TPV）和功函数（WF）测量，可以通过电化学阻抗光谱（EIS）进一步证实，从而降低电荷传递电阻和改进的电荷分离效率。目前的工作还为开发PEC水分裂开发高性能光电池提供了新的机会。由elsevier b.v出版。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号