Four-dimensional visualization of Pt/C cathode catalyst layers in membrane electrode assemblies (MEAs) were successfully performed by a newly developed method, namely laminography-XAFS (X-ray absorption fine structure). The method not only enables imaging of the 3D distribution of Pt nanoparticle cathode catalysts, but also the chemical states of the Pt catalysts in fresh and degraded MEAs in a nondestructive manner.
|ジャーナル||Angewandte Chemie - International Edition|
|出版ステータス||Published - 2012 10月 8|
ASJC Scopus subject areas
- 化学 (全般)