A multi-electrode probe for parallel imaging in scanning electrochemical microscopy

被引：38

作者：

Barker, AL ^{[1
]}

Unwin, PR

Gardner, JW

Rieley, H

机构：

[1] Univ Warwick, Dept Chem, Coventry CV4 7AL, W Midlands, England

[2] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England

[3] Unilever Res Port Sunlight Lab, Wirral L63 3JW, Merseyside, England

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2004年 / 6卷 / 01期

关键词：

scanning electrochemical microscopy; microdisc assay; electrochemical imaging; fluorescence confocal laser microscopy;

D O I：

10.1016/j.elecom.2003.10.019

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The first use of a parallel (multiple data acquisition) electrode probe for amperometric imaging in scanning electrochemical microscopy (SECM) is described. A 16-electrode linear microdot device has been designed based on an array of 10 mum diameter disc electrodes with a pitch of 120 mum, that are individually addressable. This configuration leads to essentially no overlap of diffusion fields when this electrode is used for amperometric detection. Linear sweep voltammetry, together with fluorescence confocal laser scanning microscopy, has been used to assess the characteristics of the device. To demonstrate the possibilities of parallel imaging in SECM, we report use of the device to image a heterogeneous substrate with conducting and insulating features. (C) 2003 Published by Elsevier B.V.

引用

页码：91 / 97

页数：7

共 37 条

[21] Scanning electrochemical microscope-induced dissolution: Theory and experiment for silver chloride dissolution kinetics in aqueous solution without supporting electrolyte [J].

Macpherson, JV ;

Unwin, PR .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (50) :19475-19483

[22] SCANNING ELECTROCHEMICAL MICROSCOPE INDUCED DISSOLUTION - RATE LAW AND REACTION-RATE IMAGING FOR DISSOLUTION OF THE (010) FACE OF POTASSIUM FERROCYANIDE TRIHYDRATE IN NONSTOICHIOMETRIC AQUEOUS-SOLUTIONS OF THE LATTICE IONS [J].

MACPHERSON, JV ;

UNWIN, PR .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (10) :3338-3351

[23] SCANNING ELECTROCHEMICAL MICROSCOPY .20. STEADY-STATE MEASUREMENTS OF THE FAST HETEROGENEOUS KINETICS IN THE FERROCENE/ACETONITRILE SYSTEM [J].

MIRKIN, MV ;

RICHARDS, TC ;

BARD, AJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (29) :7672-7677

[24] Scanning electrochemical microscopy detection of dissolved sulfur species from inclusions in stainless steel [J].

Paik, CH ;

White, HS ;

Alkire, RC .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (11) :4120-4124

[25] Individually addressable gel-integrated voltammetric microelectrode array for high resolution measurement of concentration profiles at interfaces [J].

Pei, JH ;

Tercier-Waeber, ML ;

Buffle, J ;

Fiaccabrino, GC ;

Koudelka-Hep, M .

ANALYTICAL CHEMISTRY, 2001, 73 (10) :2273-2281

[26] SCANNING ELECTROCHEMICAL MICROSCOPY .17. STUDIES OF ENZYME MEDIATOR KINETICS FOR MEMBRANE-IMMOBILIZED AND SURFACE-IMMOBILIZED GLUCOSE-OXIDASE [J].

PIERCE, DT ;

UNWIN, PR ;

BARD, AJ .

ANALYTICAL CHEMISTRY, 1992, 64 (17) :1795-1804

[27] Passivation and corrosion of microelectrode arrays [J].

Schmitt, G ;

Schultze, JW ;

Fassbender, F ;

Buss, G ;

Lüth, H ;

Schöning, MJ .

ELECTROCHIMICA ACTA, 1999, 44 (21-22) :3865-3883

[28] Visualization and characterization of electroactive defects in the native oxide film on aluminium [J].

Serebrennikova, I ;

Lee, S ;

White, HS .

FARADAY DISCUSSIONS, 2002, 121 :199-210

[29] Breakdown of the iron passive layer by use of the scanning electrochemical microscope [J].

Still, JW ;

Wipf, DO .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (08) :2657-2665

[30] Scanning electrochemical microscopy. 38. Application of SECM to the study of charge transfer through bilayer lipid membranes [J].

Tsionsky, M ;

Zhou, JF ;

Amemiya, S ;

Fan, FRF ;

Bard, AJ ;

Dryfe, RAW .

ANALYTICAL CHEMISTRY, 1999, 71 (19) :4300-4305

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