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Polarization-dependent Total Reflection Fluorescence X-ray Absorption Fine Structure (PTRF-XAFS) Studies on the Structure of a Pt Monolayer on Au(111) Prepared by the Surface-limited Redox Replacement Reaction
2017
Chemistry Letters
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We studied the initial stage of a Pt monolayer produced by surface-limited redox replacement (SLRR) using polarizationdependent total reflection fluorescence X-ray absorption fine structure (PTRF-XAFS). Different from the widely accepted understanding that metallic monolayer islands are formed, our XAFS showed that the Pt monolayer, initially present on the Au(111) substrate, was mainly in the form of a planar [PtCl 4 ] 2¹ complex with its molecular plane parallel to Au(111). This result provides a new insight into the mechanism of SLRR.
doi:10.1246/cl.170423
fatcat:6zgejxfjrjeddf5q4yhodaawuy