dc.creatorKLEINKE, MU
dc.date1995
dc.date11263
dc.date2014-12-16T11:33:28Z
dc.date2015-11-26T17:53:59Z
dc.date2014-12-16T11:33:28Z
dc.date2015-11-26T17:53:59Z
dc.date.accessioned2018-03-29T00:37:38Z
dc.date.available2018-03-29T00:37:38Z
dc.identifierJournal Of Physical Chemistry. Amer Chemical Soc, v. 99, n. 48, n. 17403, n. 17409, 1995.
dc.identifier0022-3654
dc.identifierWOS:A1995TH23600015
dc.identifier10.1021/j100048a015
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/62733
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/62733
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/62733
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1290679
dc.descriptionCurrent oscillations vs time series were measured during iron electrodissolution in sulfuric acid solutions. The load line of the potentiostat was modified by an external resistance connected between the iron wire electrode and the potentiostat. The complex temporal behavior of these time series was diagnosed as deterministic chaos by the (i) reconstruction of the strange attractor, (ii) measurement of the Grassberger-Procaccia dimension (iii) calculation of the first Lyapunov exponent, and (iv) analysis of-the power spectra. In the anodic scan, oscillations start and stop with high values of Lyapunov exponent (greater than 40 bits/s). For the cathodic scan, the Lyapunov exponent increases as the potential increases. The calculated dimension varies between 1 and 3, for distinct values of potential and external resistances. The values of the dimension and the Lyapunov exponent decrease with the increasing of the external resistance. The route from periodicity (or quasi-periodicity) to chaos is probably related to the doubling at the period, with typical characteristics of a degenerated Hopf bifurcation.
dc.description99
dc.description48
dc.description17403
dc.description17409
dc.languageen
dc.publisherAmer Chemical Soc
dc.publisherWashington
dc.relationJournal Of Physical Chemistry
dc.relationJ. Phys. Chem.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectBelousov-zhabotinskii Reaction
dc.subjectTime-series
dc.subjectTransition
dc.subjectQuasiperiodicity
dc.subjectAttractors
dc.subjectSulfate
dc.subjectModel
dc.titleCHAOTIC BEHAVIOR OF CURRENT OSCILLATIONS DURING IRON ELECTRODISSOLUTION IN SULFURIC-ACID
dc.typeArtículos de revistas


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