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Science 9 April 1999:
Vol. 284. no. 5412, pp. 291 - 293
DOI: 10.1126/science.284.5412.291
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Reports

Remote Triggering of Waves in an Electrochemical System

J. Christoph, P. Strasser, * M. Eiswirth, G. Ertl

In the potentiostatic electrochemical oxidation of formic acid on a platinum ring electrode under bistable conditions, an appropriate perturbation at one location of the ring can cause the emergence of a wave on the opposite side (remote triggering). These findings can be rationalized in terms of the nonlocal coupling function of the system and are theoretically reproduced by solution of the corresponding reaction-migration equation.

Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany.
*   To whom correspondence should be addressed. E-mail: strasser{at}fhi-berlin.mpg.de

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