[23p-B203-1~13] 1.4 Energy conversion, storage, resources and environment

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)

[23p-B203-5] Microstructural Analysis for Pt/CeO2 Fuel Cell Electrocatalysis by Small Angle X-ray Scattering with Reverse Monte-Carlo Method

〇Kazuhiko Omote¹, Tomoyuki Iwata¹, Katsuyoshi Kakinuma² (1.Rigaku Corporation, 2.Hydrogen and Fuel Cell Nanomaterials Center, Yamanashi Univ.)

Keywords:

Fuel cell,X-ray small angle scattering,Reverse Monte-Carlo

For developing high-performance fuel cells, for example, Pt catalysis on Gd doped CeO2 support is developed. We have measured X-ray small angle scattering and performed reverse Monte-Carlo analysis to construct three-dimensional structural models by matching the calculated scattering patterns with that of measured. The obtained models enable us to analyze aggregation of the catalysis system and association states between Pt and CeO2 nanoparticles. As a results, we could determine pore size distribution, pore connectivity, and amounts of Pt particles that uniformly distributed.