Licenciado en Educación en Quimica, Profesor de Química
Universidad Metropolitana de Ciencias de la Educación (UMCE) Año 2012
Estudiante de Doctorado en Química año de ingreso 2013,
Universidad de Santiago de Chile
We investigate the construction and characterization of a new class of molecularly assembled electrode systems, consisting of Au electrodes, monolayers of self-assembled molecules (SAMs), chemical reduced graphene oxide (GO) and electrochemically (ERGO) plus phthalocyanines Of Fe (FePc). The latter component will act as an electrocatalyst for the molecular oxygen electro-reduction reaction (RRO).
For the study of electrocatalysis and charge transfer of the RRO, in this work two different types of electrode systems are created according to the way of arranging the ERGO and QRGO monolayers, which are indicated in figure 1. First , Au electrodes are modified by the formation of SAMs, for the subsequent hydrophobic adsorption of QRGO monolayers on their terminal groups. This system is denoted [Au / SAMs / QRGO], where this nanostructure will be connected to the electrode through a spacer. As a second strategy, Au electrodes will be modified by in-situ electron-reduction of GO to obtain the system [Au / ERGO] system. Thus, once both systems are obtained, the surfaces of QRGO and ERGO will be functionalized with the FePc complexes non-covalently. These systems, shown in Figure 1, will be characterized by electrochemical, spectroscopic and probe scanning microscopy (SPM) techniques. On the other hand, the electrocatalytic and charge transfer studies of the functionalized systems will be carried out by voltammetry (cyclic and linear).