Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 12, 2019 - October 13, 2019
Catalyst layer is the place where electrochemical reaction occurs in PEFC and strongly affects cell performance. Catalyst ink, which is the raw material of the catalyst layer, is known to be directly linked to the catalyst layer structure and performance. In this study, catalyst ink with different ethanol/water ratio was prepared, and the impact of solvent composition of the catalyst ink on the microstructure and the cell performance were investigated. As for structural analysis, cross-sectional structure and pore size distribution was measured. As for electrochemical characteristics, performance, electrochemical surface area and oxygen transport resistance of CLs were investigated. According to these analyses, it is possible to obtain high performance fuel cell by selecting an appropriate ethanol/water ratio.
