Electropolymerized manganese porphyrin/polypyrrole films as catalytic surfaces for the oxidation of nitric oxide

被引：103

作者：

Diab, N ^{[1
]}

Schuhmann, W ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Lehrstuhl Analyt Chem AG Elektroanalyt & Sensor, D-44780 Bochum, Germany

来源：

ELECTROCHIMICA ACTA | 2001年 / 47卷 / 1-2期

关键词：

polypyrrole; manganese porphyrin; electropolymerization; pulse amperometry; nitric oxid; NO;

D O I：

10.1016/S0013-4686(01)00565-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A porphyrin-based NO sensor has been prepared using Mn(II)-meso-tetracarboxyphenylporphyrin linked via a spacer chain to a pyrrole unit, By means of electrochemically induced formation of a porphyrin/polypyrrole film on the microelectrode a suitable catalytic surface for NO oxidation could be obtained. The modified electrode displays excellent electrocatalytic activity for the oxidation of NO at similar to 720 mV versus Ag/AgCl. A Nafion membrane coating was used as charge-selective layer in order to diminish interferences by negatively charged ions, especially NO2-. The response of the microsensor for NO-oxidation was monitored in phosphate buffer using differential pulse voltammetry and constant-potential amperometry. The detection limit in the latter case has been determined to be 1 x 10(-7) M NO. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：265 / 273

页数：9

共 58 条

[21]

GUILIANO R, 1972, FARMACO, V27, P908

[22]

Habermüller K, 2000, ELECTROANAL, V12, P1383, DOI 10.1002/1521-4109(200011)12:17<1383::AID-ELAN1383>3.0.CO

[23]

2-0

[24] SPECTROSCOPIC AND ELECTROCHEMICAL RESPONSE TO NITROGEN MONOXIDE OF A CATIONIC IRON PORPHYRIN IMMOBILIZED IN NAFION-COATED ELECTRODES OR MEMBRANES [J].

HAYON, J ;

OZER, D ;

RISHPON, J ;

BETTELHEIM, A .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (05) :619-620

[25]

HIBBS JB, 1987, J IMMUNOL, V138, P550

[26] NITRIC-OXIDE - A CYTO-TOXIC ACTIVATED MACROPHAGE EFFECTOR MOLECULE [J].

HIBBS, JB ;

TAINTOR, RR ;

VAVRIN, Z ;

RACHLIN, EM .

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1988, 157 (01) :87-94

[27] Nitric oxide complexes of metalloporphyrins: an overview of some mechanistic studies [J].

Hoshino, M ;

Laverman, L ;

Ford, PC .

COORDINATION CHEMISTRY REVIEWS, 1999, 187 :75-102

[28] PRACTICAL NITRIC-OXIDE MEASUREMENT EMPLOYING A NITRIC OXIDE-SELECTIVE ELECTRODE [J].

ICHIMORI, K ;

ISHIDA, H ;

FUKAHORI, M ;

NAKAZAWA, H ;

MURAKAMI, E .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1994, 65 (08) :2714-2718

[29] Determination of nitric oxide with ultramicrosensors based on electropolymerized films of metal tetraaminophthalocyanines [J].

Jin, JY ;

Miwa, T ;

Mao, LQ ;

Tu, HP ;

Jin, LT .

TALANTA, 1999, 48 (05) :1005-1011

[30] Detection of nitric oxide with the iron (III) porphyrin doped nafion/glassy carbon electrode [J].

Kitajima, A ;

Miyake, M ;

Kobayashi, T ;

Koyama, H ;

Ikeda, O ;

Kijima, K ;

Komura, T ;

Uno, A ;

Yamatodani, A .

ELECTROCHEMISTRY, 1999, 67 (07) :784-788

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