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Mechanism and model of the oscillatory electro-oxidation of methanol

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Sauerbrei,  Sonja
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Eiswirth,  Markus
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Sauerbrei, S., Nascimento, M. A., Eiswirth, M., & Varela, H. (2010). Mechanism and model of the oscillatory electro-oxidation of methanol. Journal of Chemical Physics, 132(15): 154901. doi:10.1063/1.3368790.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-F5DE-0
Abstract
A mechanism for the kinetic instabilities observed in the galvanostatic electro-oxidation of methanol is suggested and a model developed. The model is investigated using stoichiometric network analysis as well as concepts from algebraic geometry (polynomial rings and ideal theory) revealing the occurrence of a Hopf and a saddle-node bifurcation. These analytical solutions are confirmed by numerical integration of the system of differential equations.