Date of Award
2008
Publication Type
Master Thesis
Degree Name
M.Sc.
Department
Chemistry and Biochemistry
Keywords
Chemistry, Physical.
Supervisor
Wang, Jichang (Chemistry & Biochemistry)
Rights
info:eu-repo/semantics/openAccess
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Abstract
During the course of this work, I discovered that the presence of 1,4-benzoquinone not only could induce various complex behaviors but also significantly enhance the photosensitivity of the BZ system. Mechanistic study suggests that the kinetic influence of 1,4-benzoquinone mainly arises from its interaction with ferriin to form a complex. In the photo-mediated 1,4-benzoquinone-bromate oscillator, dramatic changes in the reaction behavior were achieved upon the initial presence of hydroquinone. Measurements with UV/Vis spectroscopy and MS spectrometry suggest that the formation of hydroquinone-benzoquinone dimer plays a significant kinetic role in the studied system. Further mechanistic investigations on the photo-illuminated Q-bromate reaction unveiled that 1,4-benzoquinone in aqueous solution reacts with bromine only in the presence of light, which produces the brominated-1,4-hydroquinones. Further studies of the newly discovered chemical oscillator in spatially extended media revealed propagating waves in the ferroin-catalyzed benzoquinone-bromate photoreaction.
Recommended Citation
Li, Nan, "Nonlinear dynamics in bromate-based chemical oscillators" (2008). Electronic Theses and Dissertations. 2866.
https://scholar.uwindsor.ca/etd/2866