Hydrogen in its purest form can be obtained by water electrolysis, which is
currently highly energy-intensive, for the lack of suficciently quality catalysts.
Foremostly problematic is the reaction of oxygen formation, which takes place in several
steps. In this thesis, it will be studied in detail, which elementary surface processes
determine the rate of oxygen formation at different electrode potentials. On this basis,
several possible ways of accelerating this important multistep reaction will be proposed.
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