Magnetic resonance imaging of a magnetic field-dependent chemical wave

Robert Evans, Christiane R. Timmel, P.J. Hore, Melanie M. Britton

Research output: Contribution to journalArticlepeer-review

Abstract

The magnetic field dependence of the travelling wave formed during the reaction of (ethylenediaminetetraacetato)cobalt (II) (Co(II)EDTA2- ) and hydrogen peroxide was studied using magnetic resonance imaging (MRI). The reaction was investigated in a vertical tube, in which the wave was initiated from above. The wave propagated downwards, initially with a flat wavefront before forming a finger. Magnetic field effects were observed only once the finger had formed. The wave propagation was accelerated by a magnetic field with a negative gradient (i.e., when the field was stronger at the top of the tube than at the bottom) and slightly decelerated by positive field gradients.

Original languageEnglish
Pages (from-to)67-72
Number of pages6
JournalChemical Physics Letters
Volume397
Issue number1-3
Early online date11 Sep 2004
DOIs
Publication statusPublished - 11 Oct 2004

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