Electrochemical and Raman spectroelectrochemical investigation of underpotentially deposited silver on a gold substrate
Electrochemical and Raman spectroelectrochemical investigation of underpotentially deposited silver on a gold substrate
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DOI：
10.1021/la00076a006
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发表时间：
1987-07
期刊：
影响因子：
3.9
通讯作者：
Jianguo Li;Jim C. Liang;C. Korzeniewski;S. Pons
中科院分区：
文献类型：
--
作者：
Jianguo Li;Jim C. Liang;C. Korzeniewski;S. Pons
摘要：电化学和光谱电化学数据表明，欠电位沉积在金衬底上的银吸附原子被光解形成银金属簇。观察到表面金-金伸缩带和金-银伸缩带，以及表面氯络合物伸缩。氯化物络合物与溶液相中的离子相互作用，引起金属-氯化物伸缩振动频率随所施加的电极电位的变化而变化。然而，金属金属带更依赖于电极表面处的电场。
Abstract : Electrochemical and spectroelectrochemical data indicate that underpotentially deposited silver adatoms on gold substrates are photolyzed to form silver metal clusters. The surface gold-gold stretch and gold-silver stretch bands are observed, as well as the surface chloride complex stretch. The chloride complex interacts with ions in the solution phase giving rise to shifts in the metal-chloride stretching vibrational frequency as a function of the applied electrode potential. However, the metal metal bands are more dependent on the electric field at the electrode surface.