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首页> 外文期刊>Russian journal of electrochemistry >The giant raman scattering absolute cross-section for light scattered by the silver-adatom-metal complexes at silver electrodes in silver perchlorate aqueous solutions
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The giant raman scattering absolute cross-section for light scattered by the silver-adatom-metal complexes at silver electrodes in silver perchlorate aqueous solutions

机译：高氯酸银水溶液中银电极处的银-原子-金属配合物散射的光的大拉曼散射绝对截面

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摘要

The value of giant Raman scattering absolute cross-section for silver adatoms (σ ad = 3.1 × 10~(-27)cm~2/adatom) is determined by the measuring of the background intensity in the giant Raman scattering spectra at silver electrode surfaces in silver perchlorate solutions. With taking into consideration of the sulfate ion specific adsorption, the improved value σ ad = 1.9 × 10~(-27) cm 2/adatom is determined in silver sulfate solu- tions. The closeness of the values in the two solutions allows concluding that the weakly adsorbing anions affect but negligibly the silver adatom properties; however, in compliance with the earlier data obtained in sul- fate solutions, they affect markedly the kinetics of the adatom migration over electrode surface.
机译：银原子的巨型拉曼散射绝对截面值（σad = 3.1×10〜（-27）cm〜2 / adatom）通过测量银电极表面的巨型拉曼散射光谱中的背景强度来确定在高氯酸银溶液中。考虑到硫酸根离子的特异性吸附，在硫酸银溶液中确定的改进值为σad = 1.9×10〜（-27）cm 2 / adatom。两种溶液中值的接近性可以得出结论，弱吸附阴离子对银吸附原子性能的影响可忽略不计。然而，根据在硫酸盐溶液中获得的较早数据，它们显着影响了吸附原子在电极表面上迁移的动力学。

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