Universiteit Leiden

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Catalysis of the electrochemical water oxidation to oxygen

Promotor: Prof.dr. M.T.M. Koper, Co-Promotor: F. Calle-Vallejo

O.A. Diaz Morales
19 november 2015
Thesis in Leiden Repository

This thesis discusses the parameters affecting the catalysis for the electrochemical conversion of water into oxygen. The slow kinetics for the oxygen evolution reaction (OER) is one of the major bottlenecks in the solar energy-to-fuels conversion process, which reduces the efficiency for the photo-electrochemical fuels generation (artificial photosynthesis). The work shows that to enhance the kinetics for the oxygen evolution reaction, one should not only look at the catalysts but also consider the synergy between catalyst and electrolyte. A more general approach that considers the electrochemical interface as a whole (electrode + electrolyte) is therefore the most promising route towards optimal activity.

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