2-DIMENSIONAL IMAGING OF POTENTIAL WAVES IN ELECTROCHEMICAL SYSTEMS BY SURFACE-PLASMON MICROSCOPY

被引：73

作者：

FLATGEN, G ^{[1
]}

KRISCHER, K ^{[1
]}

PETTINGER, B ^{[1
]}

DOBLHOFER, K ^{[1
]}

JUNKES, H ^{[1
]}

ERTL, G ^{[1
]}

机构：

[1] MAX PLANCK GESELL, FRITZ HABER INST, D-14195 BERLIN, GERMANY

来源：

SCIENCE | 1995年 / 269卷 / 5224期

关键词：

D O I：

10.1126/science.269.5224.668

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The potential dependence of resonance conditions for the excitation of surface plasmons was exploited to obtain two-dimensional images of the potential distribution of an electrode with high temporal resolution. This method allows the study of spatiotemporal patterns in electrochemical systems. Potential waves traveling across the electrode with a speed on the order of meters per second were observed in the bistable regime of an oscillatory electrochemical reaction. This velocity is close to that of excitation waves in nerve fibers and is far greater than the velocity of reaction-diffusion waves observed in other chemical systems.

引用

页码：668 / 671

页数：4

共 18 条

[1]

BONHOEFFER KF, 1941, Z ELEKTROCHEM, V47, P147

[2]

CHAO F, 1977, J PHYS-PARIS, V38, P97

[3] POTENTIAL DEPENDENCE OF THE SURFACE-PLASMON DISPERSION-RELATION AND THE ROLE OF ADSORPTION OF ANIONS AT THE ELECTROCHEMICAL INTERFACE [J].

DZHAVAKHIDZE, PG ;

KORNYSHEV, AA ;

TADJEDDINE, A ;

URBAKH, MI .

ELECTROCHIMICA ACTA, 1989, 34 (12) :1677-1680

[4] ACCELERATING FRONTS IN AN ELECTROCHEMICAL SYSTEM DUE TO GLOBAL COUPLING [J].

FLATGEN, G ;

KRISCHER, K .

PHYSICAL REVIEW E, 1995, 51 (05) :3997-4004

[5]

FRUMKIN A, 1955, Z ELEKTROCHEM, V59, P807

[6] SURFACE-PLASMONS AS A PROBE OF THE ELECTROCHEMICAL INTERFACE [J].

GORDON, JG ;

ERNST, S .

SURFACE SCIENCE, 1980, 101 (1-3) :499-506

[7]

HEKEN H, 1977, SYNERGETICS

[8] SPATIOTEMPORAL PERIOD-DOUBLING DURING THE ELECTRODISSOLUTION OF IRON [J].

HUDSON, JL ;

TABORA, J ;

KRISCHER, K ;

KEVREKIDIS, IG .

PHYSICS LETTERS A, 1993, 179 (4-5) :355-363

[9] OSCILLATORY ELECTRODISSOLUTION OF METALS [J].

HUDSON, JL ;

BASSETT, MR .

REVIEWS IN CHEMICAL ENGINEERING, 1991, 7 (02) :109-170

[10]

KOLB DM, 1982, SURFACE POLARITONS, P299

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