title: Complex dynamics and enhanced photosensitivity in a modified Belousov-Zhabotinsky reaction.
abstract: This study presents an experimental investigation of nonlinear dynamics in a modified Belousov-Zhabotinsky (BZ) reaction, in which the addition of 1,4-benzoquinone induced various complex behaviors such as mixed-mode oscillations and consecutive period-adding bifurcations. In addition, the presence of 1,4-benzoquinone significantly enhanced the photosensitivity of the ferroin-catalyzed BZ system, in which light-induced transitions between simple and complex oscillations have been achieved. Mechanistic study suggests that the influence of benzoquinone may arise from its interactions with the metal catalyst ferroin/ferriin, where cyclic voltammograms illustrate that the presence of benzoquinone causes an increase in the redox potential of ferroin/ferriin couple, which may consequently alternate the oxidation and reduction paths of the catalyst.
authors.affiliation: Department of Chemistry and Biochemistry, The University of Windsor, Windsor, Ontario N9B 3P4, Canada.
authors.forename: Nan
authors.initials: N
authors.lastname: Li
authors.forename: Jinpei
authors.initials: J
authors.lastname: Zhao
authors.forename: Jichang
authors.initials: J
authors.lastname: Wang