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Experimental Investigations of the Kinetics of a Catalytic Trapping Reaction in Confined Spaces

Published online by Cambridge University Press:  10 February 2011

Mark S. Feldman ,
Anna L. Lin  and
Raoul Kopelman
Mark S. Feldman
Affiliation:
Dept. of Chemistry, University of Michigan Ann Arbor, MI 48109–1055, USA
Anna L. Lin
Affiliation:
Dept. of Chemistry, University of Michigan Ann Arbor, MI 48109–1055, USA
Raoul Kopelman
Affiliation:
Dept. of Chemistry, University of Michigan Ann Arbor, MI 48109–1055, USA
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Abstract

We investigate the anomalous kinetics in one dimension of a diffusion limited catalytic trapping reaction, A + T → T, by measuring the oxidation of glucose. The reaction is carried out in a thin capillary tube, and the depletion of oxygen in the vicinity of the reaction front is monitored by the fluorescence of a Ru(II) dye. Theoretical results and simulations have predicted an asymptotic t1/2 dependence for the rate coefficient. We observe a depedence on t0.56, with what appears to be an asymptotic behavior approaching t1/2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 464: Symposium FF – Dynamics in Small Confining Systems III , 1996 , 225
Copyright
Copyright © Materials Research Society 1997

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References

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