[6a-S41-1~11] 【CS.9】7.1 & 7.4 Code-sharing session

[6a-S41-9] Structure Determination of the Pt(111) Electrode Surface during Electrochemical Reactions by Using Time-Resolved X-ray CTR Scattering

〇Tetsuroh Shirasawa^1,2, Takuya Masuda³, Wolfgang Voegeli⁴, Etsuo Arakawa⁴, Toshio Takahashi⁴, Kohei Uosaki³, Tadashi Matsushita⁵ (1.AIST, 2.JST, PRESTO, 3.NIMS, 4.Tokyo Gakugei Univ., 5.KEK-PF)

Keywords:Surface XRD, electrochemistry

We have developed a method that can measure a CTR profile on the time scale of seconds or less by using angle-convergent, wavelength-dispersive X-ray beam. In this paper, we show the potential of the method for the time-resolved structure determination of electrochemical interfaces. During the electro-oxidation of methanol, we observed a transient structural change of the Pt(111) electrode surface, which represents a behavior of reaction intermediate CO layer.