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
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
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偏振依赖性全反射荧光 X 射线吸收精细结构 (PTRF-XAFS) 通过表面限制氧化还原置换反应制备的 Au(111) 上 Pt 单层结构的研究
DOI：
10.1246/cl.170423
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
K. Asakura
中科院分区：
文献类型：
--
作者：
Qiuyi Yuan;S. Takakusagi;Y. Wakisaka;Y. Uemura;T. Wada;H. Ariga;K. Asakura
利用偏振相关全反射荧光X射线吸收精细结构（PTRF-XAFS）研究了表面限制氧化还原置换（SLRR）法制备的Pt单层膜的初始阶段。与普遍接受的金属单层岛形成的理解不同，我们的XAFS表明，Pt单层，最初存在于Au（111）衬底上，主要是以平面的[PtCl 4]2-配合物的形式，其分子平面平行于Au（111）。这一结果为SLRR的机制提供了新的见解。
We studied the initial stage of a Pt monolayer produced by surface-limited redox replacement (SLRR) using polarization-dependent total reflection fluorescence X-ray absorption fine structure (PTRF-XAFS). Different from the widely accepted understanding that a metallic monolayer island is formed, our XAFS showed that the Pt monolayer, initially present on the Au(111) substrate, was mainly in the form of a planar [PtCl4]2- complex with its molecular plane parallel to the Au(111). This result provides a new insight into the mechanism of SLRR.