Time-resolved XAFS study on laser-induced particle formation in palladium solution

Saeki, Morihisa*; Matsumura, Daiju   ; Tsuji, Takuya  ; Yomogida, Takumi   ; Taguchi, Tomitsugu*; Oba, Hironori*  

Previously we demonstrated that laser-induced particle formation achieved the recovery of Pd particles with a diameter of sub-micrometers. In this work, we studied Pd particle formation by time-resolved X-ray fine structure spectroscopy (XAFS). Increase of irradiation power results in increase of reaction order from 0.82 to 1.39. The result suggests that the pulsed laser irradiation contributes not only to the reduction of the Pd ion but also to the Pd particle growth in the laser-induced particle formation.