Electrocatalytic oxidation of hydrazines at a 4-pyridyl hydroquinone self-assembled platinum electrode and its application to amperometric detection in capillary electrophoresis

被引：37

作者：

Niu, L ^{[1
]}

You, TY ^{[1
]}

Gui, JY ^{[1
]}

Wang, EK ^{[1
]}

Dong, SJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Electroanalyt Chem Lab, Changchun 130022, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1998年 / 448卷 / 01期

关键词：

electrocatalytic oxidation; hydrazines; self-assembled monolayer electrode; amperometric detection;

D O I：

10.1016/S0022-0728(98)00028-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

4-Pyridyl hydroquinone on a platinum electrode adsorbs through the pyridine nitrogen forming stable self-assembled layers. The electrocatalytical oxidation of hydrazines was performed by the modified electrode. The overpotential of hydrazines was decreased markedly at the self-assembled monolayer (SAM) electrode. The mechanism of hydrazine oxidation was also investigated. Amperometric detection of hydrazine under zero potential (vs Ag\AgCI\sat. KCl) was exhibited by the SAM electrode used as an electrochemical detector in a flow system. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：79 / 86

页数：8

共 27 条

[21] DETERMINATION OF THE ORIENTATION OF ADSORBED MOLECULES AT SOLID-LIQUID INTERFACES BY THIN-LAYER ELECTROCHEMISTRY - AROMATIC-COMPOUNDS AT PLATINUM-ELECTRODES [J].

SORIAGA, MP ;

HUBBARD, AT .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (10) :2735-2742

[22] POTENTIAL-DEPENDENT SURFACE-CHEMISTRY OF 3-PYRIDINECARBOXYLIC ACID (NIACIN) AND RELATED-COMPOUNDS AT PT(111) ELECTRODES [J].

STERN, DA ;

LAGURENDAVIDSON, L ;

FRANK, DG ;

GUI, JY ;

LIN, CH ;

LU, F ;

SALAITA, GN ;

WALTON, N ;

ZAPIEN, DC ;

HUBBARD, AT .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (03) :877-891

[23] Exchange dynamics of redox-active self-assembling mixed monolayers [J].

Tirado, JD ;

Abruna, HD .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (11) :4556-4563

[24] METALLOPHTHALOCYANINES AS CATALYSTS IN ELECTROCHEMICAL REACTIONS [J].

ZAGAL, JH .

COORDINATION CHEMISTRY REVIEWS, 1992, 119 :89-136

[25] SURFACE ELECTROCHEMISTRY AND MOLECULAR-ORIENTATION - STUDIES OF PYRIDYL HYDROQUINONES ADSORBED AT PT(111) BY CYCLIC VOLTAMMETRY, AUGER-ELECTRON SPECTROSCOPY AND ELECTRON-ENERGY LOSS SPECTROSCOPY [J].

ZAPIEN, DC ;

GUI, JY ;

STERN, DA ;

HUBBARD, AT .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1992, 330 (1-2) :469-487

[26] FLOW-INJECTION AMPEROMETRIC DETECTION OF HYDRAZINE BY ELECTROCATALYTIC OXIDATION AT A PERFLUOROSULFONATED IONOMER RUTHENIUM OXIDE PYROCHLORE CHEMICALLY-MODIFIED ELECTRODE [J].

ZEN, JM ;

TANG, JS .

ANALYTICAL CHEMISTRY, 1995, 67 (01) :208-211

[27] Electrocatalytic activity of N,N',N'',N'''-tetramethyl-tetra-3,4-pyridoporphyrazinocobalt(II) adsorbed on a graphite electrode towards the oxidation of hydrazine and hydroxylamine [J].

Zhang, JJ ;

Tse, YH ;

Pietro, WJ ;

Lever, ABP .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1996, 406 (1-2) :203-211

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