Transient Kinetic QXAFS Approach for Understanding the RDE–MEA Gap in Fuel Cell (Oxygen Reduction Reaction) Performances of Pt-Based Electrocatalysts - Takefumi Yoshida; Shinobu Takao; Hiroko Ariga-Miwa; Xiao Zhao; Gabor Samjeské; Takuma Kaneko; Tomoya Uruga; Yasuhiro Iwasawa (ACS Omega)