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Ciclo de Seminarios 2014

2014 20 NOV

Jueves 20 de Noviembre
14:00 hs. - Aula B, Instituto de Tecnología "J. Sábato"
Edificio TANDAR
"Advances in the Field of PEM and Solid Oxide Water Electrolysis Research"
Dr. Karel Bouzek
Department of Inorganic Technology, Institute of Chemical Technology (ICT) Prague, Czech Republic
RESUMEN: Water electrolysis represents one of the key technologies of the so called Hydrogen Economy. Its main task in this approach to the energy storage and effective utilization consists in conversion of locally (geographically or in time) excessive electrical energy to the energy of chemical bond of hydrogen. Role of this technology was for a long time underestimated and most of the research and development effort was invested into the development of the fuel cells, i.e. devices used for the energy conversion in direction opposite to the water electrolysis. The existing alkaline water electrolysis cannot satisfy the requirements put on the process used for flexible stabilization of the energy distribution grid and for storage of instantaneous excesses of electrical energy. This provoked renewed interest in the water electrolysis technology. Two main directions were followed. First one consists in improvements and optimization of the existing alkaline route. Second one focuses on development suitable alternative approaches. This presentation focuses on the second mentioned route. Within last year an attention has focused at ICT Prague on theoptimization of an anode for the PEM (proton exchange membrane) waterelectrolysis with a special focus being paid to the anode catalytic layer. Second aspect followed was the durability of the perfluorinatedsulphonated polymer electrolyte membrane in the system under conditions of elevated temperature and pressure. In parallel experimental study accompanied by the mathematical modelling was initiated in order to assess potential of these technologies in the field of energy storage and conversion. The attention was primarily paid to the experimental approaches and optimization of an experimental system. Later on optimization of the cell components became a subject of interest. The experimental data obtained are used in the mathematical modelling of the system completing this field of interest. The presentation will focus main aspects of the above topics and summarize plans for the future progress in these fields.
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