SURFACE-ENHANCED RAMAN-SCATTERING OF PARA-AMINOBENZOIC ACID AT AG ELECTRODE
SURFACE-ENHANCED RAMAN-SCATTERING OF PARA-AMINOBENZOIC ACID AT AG ELECTRODE
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DOI：
10.1021/j100382a049
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发表时间：
1990-09-20
影响因子：
--
通讯作者：
KIM, MS
中科院分区：
文献类型：
--
作者：
PARK, HK;LEE, SB;KIM, MS
研究了吸附在银电极表面的对氨基苯甲酸（PABA）的表面增强拉曼散射（SERS）。在KCl水溶液中，用正负电位扫描预处理的银电极可获得真实的PABA的SER谱。该分子在银表面以对氨基苯甲酸酯的形式吸附，-NH 2和-COO '基团与表面相互作用。描述了SERS谱图的电位依赖性。描述了真实的SER谱和在各种实验条件下获得的SER谱之间的光谱特征的差异。
Surface-enhanced Raman scattering (SERS) from p-aminobenzoic acid (PABA) adsorbed on silver electrode surfaces was investigated. The authentic SER spectrum of PABA could be obtained by use of the Ag electrode pretreated with posi-tive-negative potential sweeps in aqueous KC1 medium. The molecule appeared to adsorb on silver as p-aminobenzoate, both-NH2 and-COO'groups interactingwith the surface. The potential dependence of the SERS spectral pattern has been described. Differences in the spectral features between the authentic SER spectrum and the SER spectra obtained under various experimental conditions havebeen described.