Chaotic and periodic switching in cyclic voltammetric responses of methanol and primary alcohols in alkaline solutions

Schell, Mark; Xiao-rong, Cai

doi:10.1016/0013-4686(93)85007-l

Cited by 20 publications

(14 citation statements)

References 17 publications

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“…The development of alcohol fuel cells has encountered one problem that is the typically large over-potentials at most unmodified electrode surfaces [10][11][12][13]. Although, a lot of work has been done to study the electro-oxidation of methanol, 1-propanol, and 2-propanol on Pt-based catalysts in the alkaline media [14][15][16], the high price and limited supply of Pt are major barriers to the development of DAFCs.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxidation of 1-Propanol and 2-Propanol on Electro-active Films Derived from NiII-(N,N′-bis(2-Hydroxy, 3-Methoxy Benzaldehyde)-1,2-Propandiimine) Modified Glassy Carbon Electrode

et al. 2011

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Complexes of Ni II -(N,N′-bis(2-hydroxy, 3-methoxy benzaldehyde)-1,2-propandiimine) can be electropolymerized onto GC electrode in an alkaline solution to give an electro-active film strongly adhered on the electrode surface. In alkaline solution, this poly-(Ni II {sal-1,2-pn(3-OMe) 2 })/GC film shows the typical voltammetric response of a surface-immobilized redox couple, as can be anticipated for the Ni 2+ /Ni 3+ transitions into the film. In addition, the film exhibits a potent and persistent electro-catalytic activity towards the oxidation of 1-and 2-propanol. In CV studies, in the presence of these alcohols, poly-(Ni II {sal-1,2-pn(3-OMe) 2 })/GC electrode shows a new oxidation peak for the alcohols at a potential much more positive than the oxidation peak potential of Ni II species. Based on a proposed mechanism, Ni III sites act as active surface for the direct electro-oxidation of alcohols. The corresponding rate laws have been derived, and the kinetic parameters have been obtained. Also, an amperometric procedure has been successfully applied to the determination of the alcohols.

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Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxidation of 1-Propanol and 2-Propanol on Electro-active Films Derived from NiII-(N,N′-bis(2-Hydroxy, 3-Methoxy Benzaldehyde)-1,2-Propandiimine) Modified Glassy Carbon Electrode

et al. 2011

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“…A lot of work has been done to study the electro-oxidation of methanol, 1-propanol and 2-propanol on Pt-based catalysts in alkaline medium [21][22][23][24]. However, the high price and limited supply of Pt constitute a major barrier to the development of DAFCs.…”

Section: Introductionmentioning

confidence: 99%

Electro-oxidation of methanol, 1-propanol and 2-propanol on Pt and Pd in alkaline medium

Liu

et al. 2008

Journal of Power Sources

130

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“…It has been observed that data was fitted the logistic differential equation quite well (with the correlation coefficient of 0.98), what indicates chaotic nature of the MEO dynamics. Chaotic switching in the oxidation of methanol carried out under the regime of cyclic voltammetry has already been observed by Schell and Cai [27]. Figures 4a and 4b represent the current-charge dependencies of the cathodic half cycle measurements and the related attempted logistic equations.…”

Section: Resultsmentioning

confidence: 55%

Application of the quadratic logistic differential equation for the rationalization of methanol electrooxidation dynamics

Heli

Gobal

2016

J. Electrochem. Sci. Eng.

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<p class="PaperAbstract"><span lang="EN-US">The electrooxidation of methanol in both acidic and alkaline media on poly-crystalline platinum under the regime of cyclic voltammetry is analyzed by application of quadratic logistic equation. The current-charge curves in the anodic cycles fit the logistic differential equation reasonably well and are accounted on the basis of the non-linearity of the kinetics and the effect of positive feedback. In the reverse cycle however, no fit is observed, presumably due to the lack of correlation between the net faradaic current and the surface charge of adsorbates.</span></p>

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Chaotic and periodic switching in cyclic voltammetric responses of methanol and primary alcohols in alkaline solutions

Cited by 20 publications

References 17 publications

Electrocatalytic Oxidation of 1-Propanol and 2-Propanol on Electro-active Films Derived from NiII-(N,N′-bis(2-Hydroxy, 3-Methoxy Benzaldehyde)-1,2-Propandiimine) Modified Glassy Carbon Electrode

Electrocatalytic Oxidation of 1-Propanol and 2-Propanol on Electro-active Films Derived from NiII-(N,N′-bis(2-Hydroxy, 3-Methoxy Benzaldehyde)-1,2-Propandiimine) Modified Glassy Carbon Electrode

Electro-oxidation of methanol, 1-propanol and 2-propanol on Pt and Pd in alkaline medium

Application of the quadratic logistic differential equation for the rationalization of methanol electrooxidation dynamics

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