[1] Wang Yihong, Song Wei, Gao Lijing, et al. Analysis of electrochemical impedance and XRD spectroscopyfor complex self-assembled film on silver [J]. Journal of Southeast University (English Edition), 2006, 22 (1): 121-124. [doi:10.3969/j.issn.1003-7985.2006.01.026]

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Analysis of electrochemical impedance and XRD spectroscopyfor complex self-assembled film on silver()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

22

Issue:

2006 1

Page:

121-124

Research Field:

Mathematics, Physics, Mechanics

Publishing date:

2006-03-20

Info

Title:

Analysis of electrochemical impedance and XRD spectroscopyfor complex self-assembled film on silver

Author(s):

Wang Yihong¹;  2;  Song Wei²;  Gao Lijing²;  Ge Jie²;  Gu Ning¹

¹State Key Laboratory of Bioelectronics, Nanjing 210096, China
²Department of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China

Keywords:

electrochemical impedance;  X-ray diffraction;  complex self-assembled multilayer;  silver

PACS:

O484.4

DOI:

10.3969/j.issn.1003-7985.2006.01.026

Abstract:

Self-assembled monolayers(SAMs)of(3-mercaptopropy)trimethoxysilane(3-MPT)chemisorbed on silver surfaces were chemically modified by 1-octadecanethiol to form self-assembled mixed-monolayers(SAMM)and the co-polymer of N-vinylcarbazole and methyl methacrylate ester(to form complex self-assembled film(CSAF)).The oxidation resistance of these barriers on silver surfaces and some influential factors concerned processes were analyzed by electrochemical impedance spectroscopy(EIS)in a 10% NaOH aqueous solution at oxidation potential.X-ray diffraction(XRD)spectroscopy shows that the oxidation occurring on the silver surface may be restrained effectively due to the coating barrier, and CSAF(Ⅱ)is the best one.Studies also reveal that oxide processes of bare silver and a series of modified silver electrodes in a 10% NaOH aqueous solution are of more than two relaxation time constants.

References:

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[3] Wang Yihong, Song Wei, Zhou Jie, et al.Preparation and study of complex self-assembled film as a super-thin barrier on silver [J].Applied Surface Science, accepted to appear.
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[8] Cao C, Zhang J.Electrochemical impedance spectroscopy[M].Beijing:Science Press, 2002: 56-188.(in Chinese)
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[10] Zheng X, Zhu L, Yan A, et al.Controlling synthesis of silver nanowires and dendrites in mixed surfactant solutions[J].J Colloid Interface Sci, 2003, 268(2):357-361.
[11] Waterhouse G I N, Bowmaker G A, Metson J B.Oxidation of a polycrystalline silver foil by reaction with ozone [J].Applied Surface Science, 2001, 183(3/4):191-204.

Memo

Memo:

Biography: Wang Yihong(1962—), female, associate professor, yihongwang@seu.edu.cn.

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