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Strategies for the efficiency enhancement of solar carbon dioxide photoreduction: towards the chemical storage of solar energy.

Tuesday (27.09.2016)
11:45 - 12:00
Part of:

An important approach towards an efficient and sustainable economy is storing solar energy into chemical fuels through Photoelectrochemical (PEC) water splitting and carbon dioxide reduction. In the case of carbon dioxide, the PEC approach it is of outmost importance since the oxidation and reduction reactions are decoupled and physically separated, avoiding reoxidation of the reduced CO2 products (methanol, methane, carbon monoxide) at the photoanode which can reduce significantly its efficiency.

In this work, it will be presented how the PEC approach can be competitive towards the coupling of photovoltaic devices and carbon dioxide electrolysers to became a real alternative for solar energy storage as fuels, by means of focusing on the optimization of the individual key parameters such as the electronic transference of the (photo)anode and (photo)cathode, their overpotentials to oxygen evolution reaction (OER), hydrogen evolution reaction (HER) and carbon dioxide activation. Finally, our recent results and an outlook at the most promising candidates as photoactive materials in terms of energy balance will be presented.


Ph.D. Sebastian Murcia
Catalonia Institut for Energy Research (IREC)
Additional Authors:
  • Dr. Cristian Fabrega
    Catalonia Institute for Energy Research (IREC)
  • Dr. Maria Dolores Hernandez-Alonso
    Repsol Technology Center
  • Dr. German Penelas
    Repsol Technology Center
  • Prof. Dr. Joan Ramon Morante
    Catalonia Institute for Energy Research (IREC), Universitat de Barcelona
  • Dr. Teresa Andreu
    Catalonia Institut for Energy Research (IREC)