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Spectrophotometric Observations of Gel-Free Reaction Front Kinetics in Confined Geometry

Published online by Cambridge University Press:  21 March 2011

Sung Hyun Park ,
Stephen Parus ,
Raou Kopelman  and
Haim Taitelbaum
Sung Hyun Park
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, U.S.A.
Stephen Parus
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, U.S.A.
Raou Kopelman
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, U.S.A.
Haim Taitelbaum
Affiliation:
Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel
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Abstract

We present a new experimental system to study the kinetics of the reaction front in A + B→C reaction-diffusion systems with initially-separated reactants. The set-up is composed of a CCD camera monitoring the kinetics of the front formed in the reaction-diffusion system Cu2++ tetra→1:1 complex (in aqueous, gel-free solution) inside a 150 micron gap between two flat microscope slides. This is basically a two-dimensional system. The results are consistent with the theoretical predictions for the anomalous time dependence of the front's width, height,and location.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 651: Symposium T – Dynamics in Small Confining Systems V , 2000 , T7.11.1
Copyright
Copyright © Materials Research Society 2001

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