In-Situ Coherent X-ray Scattering and Scanning Tunneling Microscopy Studies of Hexagonally Reconstructed Au(001) in Electrolytes

被引：4

作者：

Pierce, M. S. ^{[1
]}

Komanicky, V. ^{[1
,2
]}

Barbour, A. ^{[1
]}

Hennessy, D. C. ^{[1
]}

Suc, J. -D.

Sandy, A. ^{[3
]}

Zhu, C. ^{[1
]}

You, H. ^{[1
]}

机构：

[1] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA

[2] Safarik Univ, Fac Sci, Kosice, Slovakia

[3] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

ELECTROCATALYSIS 5 | 2011年 / 35卷 / 28期

关键词：

INTERFACES; AU(111);

D O I：

10.1149/1.3641820

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We studied dynamics of Au(001) surface in situ in 0.1 M HClO4 electrolyte solution using both coherent x-ray scattering and scanning tunneling microscopy (STM). The surface of Au(001) is known to reconstruct at cathodic potentials; the reconstruction lifts at anodic potentials. In our in-situ STM experiments, the measurements focus on time-dependent progressions of surface morphology during slow potential sweep. In our in-situ coherent x-ray scattering measurements, we demonstrate that the equilibrium surface dynamics are directly measurable and the measured dynamics are consistent with morphological evolution of the STM images. These experiments represent the first successful application of coherent x-ray scattering to the study of electrochemical interfaces in situ.

引用

页码：71 / 81

页数：11

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