The emergence of spatial structures in chemical systems results of the interplay between the system's dynamics and the spatial coupling among different locations. As far as the solid/liquid interface is concerned, electrocatalytic reactions such as the oxidation of small organic molecules (C1 and C2), are especially susceptible to undergo kinetic instabilities and are of great interest. This is because studying those far from equilibrium reactions is an interesting alternative, since different reaction steps are simultaneously accessed under certain conditions. The present project deals with the systematic investigation of the complex kinetics associated to adsorption and oxidation processes of small organic molecules such as formic acid, methanol, and ethanol on polycrystalline platinum surfaces. The study will be carried out mainly under oscillatory conditions, by means of conventional electrochemical techniques and the nature of reaction intermediates will be investigated with in situ (surface enhanced infrared absorption spectroscopy and quartz crystal nanobalance) and on line (differential electrochemical mass spectrometry) techniques.
News published in Agência FAPESP Newsletter about the scholarship: