确定机械应力催化剂涂层膜的脱涂效率的质子交换膜水电解器
Malena Staudacher1, Andréa de Lima Ribeiro2, Ruben Wagner3
1TU Bergakademie Freiberg, Institute for Mechanical Process Engineering and Mineral Processing, Freiberg, Germany.
Journal of microscopy
|June 16, 2025
概括
从质子交换膜水电解器 (PEMWE) 中回收关键原料是绿色生产的关键. 一种新方法准确地测量了去涂层效率,这对于回收和等贵金属至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可持续技术 可持续技术
背景情况:
- 从水电解剂中回收关键原材料对于绿色生产和脱碳至关重要.
- 质子交换膜水电解器 (PEMWE) 使用稀缺的贵金属 (Ir, Pt),需要高回收率.
- 机械回收方法,如去涂层,需要准确的评估工具,特别是用电极涂覆的柔性膜.
研究的目的:
- 开发一个小规模的实验方法来评估PEMWE机械脱涂工艺的效率.
- 为评估PEMWE回收过程中材料层的选择性分离提供一个定量工具.
- 为了进一步开发改进的机械应力技术来脱涂.
主要方法:
- 使用扫描电子显微镜 (SEM) 图像和微X射线光 (μ-XRF) 元素图.
- 使用WEKA软件进行图像处理和细分,使用简单的值方法.
- 在没有涂层的PEMWE细胞样本上验证了该方法.
主要成果:
- 开发了一种新的方法来准确确定脱涂过程的效率.
- 在评估脱涂成功时达到±0.5个百分点的准确性.
- 证明了SEM和μ-XRF与图像处理相结合的能力,用于定量分析.
结论:
- 提出的方法为量化PEMWE回收中的脱涂效率提供了一个可靠的工具.
- 该框架支持机械回收技术的定量发展,以回收关键原材料.
- 促进在绿色行业中推进可持续实践.
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