在电化学和光电化学过程中,在化佩洛夫斯基特中的固体电解质相间形成
Yuhan Liu1, Yuting Yao1, Xinyue Zhang1
1Department of Chemistry, University College London, Christopher Ingold Building, 20 Gordon Street, London WC1H 0AJ, U.K.
ACS applied materials & interfaces
|July 24, 2023
概括
化 PeroVskites 在电化学环境中形成了一层保护性表面层,提高了它们在光电催化过程中的稳定性. 甲基矿缺乏这种保护层,导致快速降解.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 光催化作用的光催化
背景情况:
- 化烯石显示出光电催化作用的潜力.
- 了解表面过程对于它们的发展至关重要.
研究的目的:
- 研究基于的化物矿石的电化学稳定性.
- 检查表面化学在电极性能中的作用.
主要方法:
- 气溶辅助化学蒸汽沉积用于薄膜制造.
- 在二甲与四甲PF6.6中进行电化学测试.
- 用于表面分析的光辐射光谱学.
主要成果:
- (Cs2TeI6) 矿膜形成了CsPF6固体电解质间相,增强了稳定性.
- 该Cs2TeI6电极支持延长的时光度测量到1.1V (16μA/cm2光电流).
- 甲基 ((CH3NH3) 2TeI6) 矿膜迅速降解,没有被动化层.
结论:
- 在电化学中,表面化学显著影响化物矿的稳定性.
- 固体电解质介相的形成是稳定的Cs2TeI6电极的关键.
- 定制表面特性对于推进矿光电催化是必不可少的.
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