Photo-response of the [Ru(bpy)3]2+ / BrO3− / H+ System in a Continuous-Flow Stirred Tank Reactor

Sekiguchi, Tetsuo; Mori, Yoshihito; Hanazaki, Ichiro

doi:10.1246/cl.1993.1309

Cited by 13 publications

(13 citation statements)

References 12 publications

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“…The purpose of the paper is to obtain quantitative information that may help elucidate the mechanistic basis of the effect of light on the system. [8][9][10][11][12][13][14] In essence we compare the photochemical effect of a pulse of light with the effects of additions of the separate species that participate in the reaction. To get a useful response, we compare the results of special "quenching" perturbations (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Quenching of Chemical Oscillations with Light

1996

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We show that it is possible to quench oscillations of the ruthenium bipyridyl catalyzed Belousov-Zhabotinsky reaction by a pulse of light when the system is run close to a supercritical Hopf bifurcation. The response to light depends on the phase of oscillations at the exposure and on the total absorbed radiant energy. It is characteristic of a quenching associated with the geometry of a limit cycle and invariant manifolds of a saddle focus created by a Hopf bifurcation. The experimental results impose a constraint on the possible production and consumption of species induced by light. It can help clarify the mechanism of the effect of light on the system. This is important to the use of light for studying chemical waves and for chaos control.

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Section: Introductionmentioning

confidence: 99%

“…It makes it possible to establish predetermined, spatially inhomogeneous initial conditions, provided the effect of light on the reaction mixture is known. The purpose of the paper is to obtain quantitative information that may help elucidate the mechanistic basis of the effect of light on the system. − …”

Section: Introductionmentioning

confidence: 99%

Quenching of Chemical Oscillations with Light

1996

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“…The photosensitive version of BZ reaction, i.e. Oregonator, was proposed by Seliguchi et al [37], and it was completed by the well-known reaction steps from the FKN mechanism [38], described as:…”

Section: Mathematical Model and Bifurcation Analysismentioning

confidence: 99%

Stability and slow-fast oscillation in fractional-order Belousov-Zhabotinsky reaction with two time scales

Hou¹,

Li²,

Chen³

2016

J. vibroeng.

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The fractional-order Belousov-Zhabotinsky (BZ) reaction with different time scales is investigated in this paper. Based on the stability theory of fractional-order differential equation, the critical condition of Hopf bifurcation with two parameters in fractional-order BZ reaction is discussed. By comparison of the fractional-order and integer-order systems, it is found that they will behave in different stabilities under some parameter intervals, and the parameter intervals may become larger with the variation of fractional order. Furthermore, slow-fast effect is firstly studied in fractional-order BZ reaction with two time scales coupled, and the Fold/Fold type slow-fast oscillation with jumping behavior is found, whose generation mechanism is explained by using the slow-fast dynamical analysis method. The influences of different fractional orders on the slow-fast oscillation behavior as well as the internal mechanism are both analyzed.

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“…In this connection, it seems to be interesting to study the effect of light on the AOT-BZ reaction. Several photochemical pathways have been proposed to account for the effect of light on the BZ reaction in the homogeneous aqueous medium: for example, the catalyst in its reduced form is photoexcited to produce HBrO 2 or Br - , which enhances or inhibits, respectively, the autocatalytic oxidation of the catalyst. ,,,− Schemes in which the catalyst in its oxidized form is photoexcited have also been proposed. ,, For the ultraviolet illumination, bromomalonic acid has been proposed to account for the photoinhibition of oscillations . In this paper, we study the photoresponse of the ferroin-catalyzed AOT-BZ system and try to elucidate which process is responsible for the primary photochemical reaction in the reverse micelle system.…”

Section: Introductionmentioning

confidence: 99%

Effect of Light on the Belousov−Zhabotinsky Reaction in Water-in-Oil Microemulsions of Aerosol OT in Octane

Vanag

Hanazaki

1997

J. Phys. Chem. A

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The ferroin-catalyzed Belousov−Zhabotinsky (BZ) reaction was found to exhibit enhanced photosensitivity in the water-in-oil microemulsion of anionic surfactant aerosol OT (AOT). Some novel photoresponses were found in this system. In addition, it was found that illumination always resulted in the reduction of the catalyst in the micelle BZ system. On the basis of the results for the BZ subsystem without malonic acid, the reduction of photoexcited ferriin by AOT was found to be important, together with an additional photoreduction of catalyst with malonic acid in the case of the full BZ system in the AOT microemulsion.

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Photo-response of the [Ru(bpy)3]2+ / BrO3− / H+ System in a Continuous-Flow Stirred Tank Reactor

Cited by 13 publications

References 12 publications

Quenching of Chemical Oscillations with Light

Quenching of Chemical Oscillations with Light

Stability and slow-fast oscillation in fractional-order Belousov-Zhabotinsky reaction with two time scales

Effect of Light on the Belousov−Zhabotinsky Reaction in Water-in-Oil Microemulsions of Aerosol OT in Octane

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