We measure cross-diffusion coefficients in a five-component system, an aerosol OT (AOT) water-in-oil microemulsion loaded with two constituents of the Belousov-Zhabotinsky (BZ) reaction (H2O/AOT/BZ1/BZ2/octane). The species BZ1 is either NaBr, an inhibitor of the BZ reaction, or ferroin, a catalyst for the reaction. As species BZ2, we choose Br2, an intermediate in the reaction. The cross-diffusion coefficients between BZ1 and BZ2 are found to be negative, which can be understood in terms of complexation between these species. Using a four-variable model for the BZ reaction, we find that the cross-diffusion coefficients measured here can lead to a noticeable shift in the onset of Turing instability in the BZ-AOT system.
|Titolo:||Pentanary cross-diffusion in water-in-oil microemulsions loaded with two components of the belousov-zhabotinsky reaction|
|Citazione:||Rossi, F., Vanag, V.K., & Epstein, V.R. (2011). Pentanary cross-diffusion in water-in-oil microemulsions loaded with two components of the belousov-zhabotinsky reaction. CHEMISTRY-A EUROPEAN JOURNAL, 17(7), 2138-2145.|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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