Abstract
Pattern formation is investigated in a modified ferroin-catalyzed Belousov−Zhabotinsky (BZ) reaction under the conditions where the stirred system exhibits sequential oscillations. In accord with the temporal dynamics, sequential waves which are separated by a long quiescent time during which the system does not support any wave activity are achieved, providing the first experimental evidence of the connection between revival wave formation and dynamics of sequential oscillations. The initial wave and quiescent window, which last for several hours, are characterized as a function of 1,4-cyclohexanedione, sulfuric acid, and bromate concentrations. In addition to the strong photosensitivity, where both the initial and revival waves can be quickly quenched by illumination, this modified BZ medium also exhibits the potential of producing complex spatiotemporal behavior such as waves with anomalous dispersions.
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