Covalent modification of a glassy carbon surface by 4-aminobenzoic acid and its application in fabrication of a polyoxometalates-consisting monolayer and multilayer films

	Covalent modification of a glassy carbon surface by 4-aminobenzoic acid and its application in fabrication of a polyoxometalates-consisting monolayer and multilayer films
	Liu JY ; Cheng L ; Li BF ; Dong SJ
刊名	langmuir
	2000
卷号	16 期号:19 页码:7471-7476
关键词	ELECTROCHEMICAL-BEHAVIOR DIAZONIUM SALTS MODIFIED ELECTRODES PROTEIN ADSORPTION ASCORBIC-ACID REDUCTION COMPLEX GOLD PERMSELECTIVITY SENSITIVITY
ISSN号	0743-7463
通讯作者	dong sj
中文摘要	4-aminobenzoic acid (4-aba) was covalently grafted on a glassy carbon electrode (gce) by amine cation radical formation in the electrooxidation process of the amino-containing compound. x-ray photoelectron spectroscopy measurement proves the presence of 4-carboxylphenylamine monolayer on the gce. the redox responses of various electroactive probes were investigated on the 4-aba-modified gce. electron transfer to fe(cn)(6)(3-) in solutions of various phs was studied by both cyclic voltammetry and electrochemical impedance analysis on the modified electrode. changes in the solution ph value result in the variation of the terminal group charge state, based on which surface pk(a) values are estimated. the 4-aba-modified gce was used as a suitable charged substrate to fabricate polyoxometalates-consisting (pom-consisting) monolayer and multilayer films through layer-by-layer assembly based on electrostatic attraction. cyclic voltammetry shows the uniform growth of these three-dimensional multilayer films. taking k10h3[pr-(simo7w4o39)(2)]. h2o (abbreviated as pr(simo7w4)(2)), for example, the preparation and electrochemical behavior of its monolayer and multilayer film had been investigated in detail. this modification strategy is proven to be a general one suitable for anchoring many kinds of poms on the 4-aba-modified gce.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000089319200019
公开日期	2010-11-04
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/19575]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Liu JY,Cheng L,Li BF,et al. Covalent modification of a glassy carbon surface by 4-aminobenzoic acid and its application in fabrication of a polyoxometalates-consisting monolayer and multilayer films[J]. langmuir,2000,16(19):7471-7476.
APA	Liu JY,Cheng L,Li BF,&Dong SJ.(2000).Covalent modification of a glassy carbon surface by 4-aminobenzoic acid and its application in fabrication of a polyoxometalates-consisting monolayer and multilayer films.langmuir,16(19),7471-7476.
MLA	Liu JY,et al."Covalent modification of a glassy carbon surface by 4-aminobenzoic acid and its application in fabrication of a polyoxometalates-consisting monolayer and multilayer films".langmuir 16.19(2000):7471-7476.