催化层微观结构对高温膜电极性能的影响

催化层微观结构对高温聚电解质膜燃料电池的性能具有重大影响。通过丝网印刷、涂布和超声喷涂 三种不同方法制备得到具有不同裂纹程度的催化层，考察了不同程度裂纹结构对不同 Pt载量催化层组装的 HT-MEA的电化学性能和 Pt利用率的影响，建立催化层裂纹程度、Pt载量和HT-MEA性能间的构效关系。数据采集时间为2019年10月到2020年12月，采用的仪器设备是目前国内外通用的燃料电池测试设备，主要记录了不同微观结构催化层的孔径分布、表面形貌、单电池测试以及各项电化学数据。

The microstructure of catalyst layers exerts a significant impact on the performance of high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs). Catalyst layers with varying crack severities were fabricated via three different methods: screen printing, coating, and ultrasonic spraying. The effects of crack structures with different severities on the electrochemical performance and Pt utilization efficiency of high-temperature membrane electrode assemblies (HT-MEAs) assembled from catalyst layers with various Pt loadings were investigated, and the structure-activity relationship (SAR) between the crack severity of catalyst layers, Pt loading, and HT-MEA performance was established. Data were collected from October 2019 to December 2020. The fuel cell testing equipment used herein is currently commonly employed both at home and abroad, and the recorded data mainly cover the pore size distribution, surface morphology, single cell test results, and various electrochemical data of catalyst layers with distinct microstructures.

搜集汇总

背景与挑战

背景概述

该数据集研究了催化层微观结构对高温膜电极性能的影响，通过丝网印刷、涂布和超声喷涂方法制备不同裂纹程度的催化层，分析其与Pt载量、电化学性能及Pt利用率之间的构效关系。数据采集于2019年10月至2020年12月，涵盖孔径分布、表面形貌和单电池测试等电化学测量结果。