基于的二元金属氧化物作为能源采集设备的新兴材料:合成,表征和同步辐射启用调查
Abdelelah Alshanableh1, Yusuf Selim Ocak1,2, Bashar Aljawrneh3
1Nanotechnology Institute, Jordan University of Science & Technology PO Box 3030 Irbid 22110 Jordan.
RSC advances
|July 5, 2024
概括
研究人员开发了新的基于的金属氧化物,作为染料敏感太阳能电池 (DSSC) 中金的替代品. 铜和的氧化物显示出有希望的电力转换效率,表明了具有成本效益的太阳能设备的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
- 纳米技术纳米技术
背景情况:
- 是一种昂贵的材料,传统上用于染料敏感太阳能电池 (DSSC) 的对电极.
- 为推进光伏技术,开发成本效益高,高效的替代品至关重要.
- 基于合金的金属氧化物 (MCo2O4) 由于其调节性特性,具有作为替代电极材料的潜力.
研究的目的:
- 通过使用不同的3D过渡金属离子 (Ni,Fe,Cu,Zn) 来合成和表征各种基于的金属氧化物 (MCo2O4).
- 评估这些合成的金属氧化物作为无染料染料敏感太阳能电池 (DSSC) 中的对电极的性能.
- 研究合成材料的结构,形态和局部协调特性.
主要方法:
- 在140°C的水热合成过程中,持续两个小时.
- 使用扫描电子显微镜 (SEM),原子力显微镜 (AFM),X射线衍射 (XRD) 和福里埃变换红外 (FTIR) 谱学进行形态和结构性表征.
- 通过X射线吸收细结构 (XAFS) 光谱在Fe和CoK边缘进行局部结构分析,包括对协调数和原子间距离进行里叶变换 (FT) 分析.
主要成果:
- 观察到不同的形态,包括纳米薄膜 (NiCo2O4),纳米叶 (CuCo2O4),类似钻石 (FeCo2O4) 和六角形 (ZnCo2O4) 的结构.
- 对于所有MCo2O4薄膜,XRD证实了立方螺旋结构.
- XAFS分析显示了特定的协调偏好:Co3+,Ni3+,Fe3+的八面体和Co2+,Zn2+,Cu2+的四面体. 原子间的距离被排列为:Co-Cu > Co-Fe > Zn-Co > Co-Ni.
- 使用CuCo2O4和ZnCo2O4计数电极的DSSC设备实现了分别1.9%和1.13%的功率转换效率.
结论:
- 合成的基于的金属氧化物呈现出独特的结构和形态特性.
- CuCo2O4和ZnCo2O4作为无DSSC的高效和成本效益的对电极材料具有显著的潜力.
- 这些发现为开发经济的光伏设备铺平了道路.
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