In-situ surface x-ray scattering studies of electrochemical metal growth and dissolution

电化学金属生长和溶解的原位表面 X 射线散射研究

• 批准号: 5453665
• 负责人: Professor Dr. Olaf Magnussen
• 金额: --
• 依托单位: Institut für Experimentelle und Angewandte Physik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5453665?language=en
• 关键词: situ; surface; ray; scattering; studies

In this project we plant to study the atomic-scale and mesoscopic structure of gold and platinum electrode surface in-situ during electrochemical deposition processes, focusing on the complex interplay between surface reconstruction and growth process. Specifically, homoepitaxial (diffusion-limited) electrodeposition on the (111) and (100) surfaces of Au and Pt and heteroepitaxial growth of Au on Pt(111) and of Ni on Au(111) electrodes will be investigated. The objective of these studies is to clarify the effect of electrodeposition on the substrate surface reconstructions and the dislocation network structures in the deposits and to study the morphological evolution during the growth process on time scales of 10-1000s. This will be done primarily by surface X-ray cell, which provides nearly unrestricted mass transprot - a key prerequisite in these experiments. In addition, supplementary electrochemical, quartz crystal microbalance, and ellipsometric measurements will be employed. The results of these studies should shed light on the effect of (potential-induced) surface stress at the solid-liquid interfaces on metal electrodeposition and surface structure.

在这个项目中，我们种植了在电化学沉积过程中基于原位的原子尺度和介观结构，重点是表面重建和生长过程之间的复杂相互作用。具体而言，研究将研究在Pt（111）上的（111）和（100）表面上的（111）和（100）表面的同型（扩散限制）电沉积，将研究AU对Pt（111）和Ni（111）电极上的Ni（111）。这些研究的目的是阐明电沉积对底物表面重建和沉积物中的位错网络结构的影响，并研究生长过程中的形态演化对10-1000s的时间尺度。这将主要由表面X射线细胞完成，该单元提供了几乎不受限制的质量推销 - 这些实验中的关键先决条件。此外，还将采用补充电化学，石英晶体微平衡和椭圆测量。这些研究的结果应阐明（电位引起的）表面应力在固液界面对金属电沉积和表面结构的影响。

项目成果

Initial stages of Pt(111) electrooxidation: dynamic and structural studies by surface X-ray diffraction

• DOI: 10.1016/j.electacta.2016.12.028
• 发表时间: 2017-01-10
• 期刊: ELECTROCHIMICA ACTA
• 影响因子: 6.6
• 作者: Drnec, Jakub;Ruge, Martin;Harrington, David A.
• 通讯作者: Harrington, David A.

In Situ Surface X-Ray Diffraction Studies of the Influence of the PEG-Cl-Complex on Homoepitaxial Electrodeposition on Cu(001)

• DOI: 10.1149/2.027312jes
• 发表时间: 2013
• 期刊: Journal of The Electrochemical Society
• 影响因子: 3.9
• 作者: F. Golks;Y. Gründer;A. Drünkler;J. Roy;J. Stettner;J. Zegenhagen;O. Magnussen

Cu(111) in chloride containing acidic electrolytes: Coadsorption of an oxygenated species

含氯化物的酸性电解质中的 Cu(111)：含氧物质的共吸附

• DOI: 10.1016/j.jelechem.2013.11.004
• 发表时间: 2014
• 期刊: Journal of Electroanalytical Chemistry
• 影响因子: 4.5
• 作者: Y. Gründer;A. Drünkler;F. Golks;G. Wijts;J. Stettner;J. Zegenhagen;O.M. Magnussen
• 通讯作者: O.M. Magnussen