共 11 条
EXCITATION PROFILES VERSUS POTENTIAL PROFILES IN THE DETERMINATION OF THE CHARGE-TRANSFER CONTRIBUTION TO SERS OF PYRIDINE ON A SILVER ELECTRODE
被引:13
作者:
KUDELSKI, A
[1
]
BUKOWSKA, J
[1
]
机构:
[1] UNIV WARSAW,DEPT CHEM,PL-02093 WARSAW,POLAND
关键词:
D O I:
10.1002/jrs.1250261005
中图分类号:
O433 [光谱学];
学科分类号:
0703 ;
070302 ;
摘要:
The relative SERS enhancement factors for pyridine adsorbed on a silver electrode were determined as a function of the laser wavelength and applied potential. The charge-transfer (CT) contribution to the SERS intensity (I), G(CT), was estimated from the excitation profiles (I vs. kv) and compared with the G(CT) values previously obtained from the I vs. electrode potential curves. A critical discussion of the determination of G(CT) with the aid of both methods is given.
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页码:955 / 958
页数:4
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