构建CoO/Mo2C 异构结构,具有由工作函数诱导的界面电子再分配,以促进整体水分裂
Han-Yang Chen1, Lei Yang2,3, Rong-Xu Wang1
1Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China.
Small (Weinheim an der Bergstrasse, Germany)
|August 24, 2023
概括
这项研究引入了一种新的CoO/Mo2C异质连接催化剂,用于高效的水分裂. 工作功能诱导的内置场增强了进化和整体水分化的催化活性.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 电化学 电化学 电化学
背景情况:
- 具有内置场的异构结构可以增强催化活性.
- 工作功能的差异驱动着催化剂中的界面电荷转移.
研究的目的:
- 为了构建一个CoO/Mo2C表轴异质连接催化剂.
- 研究工作功能诱导的内置场在水分裂的催化活性中的作用.
主要方法:
- 对CoO/Mo2C异质连接的自上而下的合成策略.
- 理论模拟和实验性表征.
- 对演化反应 (HER) 和整体水分的电化学测试.
主要成果:
- 证明了从CoO到Mo2C的界面电子再分配.
- 优化了吉布斯的自由能量,并加速了她的动力学.
- 实现了10 mA cm-2 HER的低超电位 (107 mV) 和出色的稳定性 (60小时).
- 展示了卓越的整体水分性能 (1.58V为10 mA cm-2).
结论:
- 由于工作功能诱导的界面效应,CoO/Mo2C异质连接表现出卓越的催化性能.
- 这项工作为设计基于内置场的先进催化剂提供了一种新的方法.
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