Publication date: 15th December 2025
Electrochemical reactions occur at specific potentials which are characteristic of the specific molecules involved in the redox processes. In this work I will explore the application of impedance spectroscopy to identify the states at which the charges accumulate in the surface of the electrodes and how the charge transfer is activated in the the transformation of biomass derived organic molecules.[1] Electrochemical biomass transformation in the process to move from a fuel-based economy to a carbon neutral one, and also in the development of new and sustainble ways of storing excess green power generation by renewables. This work will be focussed in studing reactions like nitrobenzene reduction and hydroxymethyl furfural oxidation and reduction. and how they can be combined with hydrogen storage. [2-4] I will show how the analysis of the capacitance may help to identify surface coverage, potentials of activation of the reaction and absorption processes occurring at the surface of the electrodes, while charge transfer provides information about the kinetics of the process. This information is key to understand the processes that limit the operation of our devices and for the optimization of their performance
Project ref. PID2023-149158OB-C41, Métodos de caracterización avanzados para materiales y dispositivos para energia (ADD). Ministerio de Ciencia, Innovación y Universidades.
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