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Structural Studies on Catalyst Ink for Fuel Cell Electrodes
Published October 12, 2011 by Society of Automotive Engineers of Japan in Japan
The performance of fuel cells depends greatly on the microscopic structure of fuel cell electrodes. Electrodes are manufactured from catalyst ink. The structure of electrodes is strongly related to that of catalyst ink. Catalyst ink is a multi-component system, consisting of catalyst carbon, ionomers, and solvent. Contrast-variation small-angle neutron scattering (CV-SANS) is a powerful technique to study the structure of multi-component materials since it allows one to decompose scattering intensity functions to partial scattering functions. In this study, we employed CV-SANS to unveil the structure of catalyst ink and discuss the relationship with the structure of electrodes.