金电极表面皮考酸的紫外拉曼散射

doi:10.3969/j.issn.1000-1565.2013.06.004

摘要/Abstract

摘要： 以皮考酸作为探针分子,在粗糙金电极表面获得了探针分子的紫外拉曼散射光谱(激发光波长λ=325 nm),通过与未经粗糙化处理的金电极表面的皮考酸分子的拉曼散射谱比较,认为皮考酸分子在粗糙金电极表面产生了较强的SERS(表面增强拉曼散射)效应,随电极电位变化的拉曼散射谱表明:皮考酸分子的振动频率和强度对电极电位有较强的依赖性,分析认为皮考酸分子在粗糙金电极表面的增强机制主要是电荷转移(CT)机制.

关键词: 紫外拉曼散射光谱, 皮考酸, 吸附, 金电极

Key words: ultraviolet Raman scattering spectrum, picolinic acid, spectroscopy, gold electrode

中图分类号:

O657.37

张星,郝艳玲. 金电极表面皮考酸的紫外拉曼散射[J]. 河北大学学报(自然科学版), 2013, 33(6): 578-582.

ZHANG Xing,HAO Yanling. Ultraviolet Raman study of picolinic acid on the gold electrode[J]. Journal of Hebei University (Natural Science Edition), 2013, 33(6): 578-582.

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