标题： Au (001) 表面在电解质中的动力学：原位相干 X 射线散射和扫描隧道显微镜 显示英文标题

标题： Dynamics of Au (001) Surface in Electrolytes: In-Situ Coherent X-ray Scattering and Scanning Tunneling Microscopy

摘要： 我们使用相干X射线散射和扫描隧道显微镜（STM）在0.1 M HClO4电解质溶液中对Au (001)表面的动力学进行了原位研究。 Au (001)表面在阴极电位下已知会发生重构；在阳极电位下，重构会消失。 在我们的原位STM实验中，测量重点是慢电位扫描过程中表面形貌的随时间变化进程。 在我们的原位相干X射线散射测量中，我们证明了平衡表面动力学可以直接测量，且测量的动力学与STM图像的形貌演化一致。 这些实验证明了相干X射线散射首次成功应用于原位研究电化学界面。 显示英文摘要

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.