Electroactivation works by altering the electronic properties of the catalytic material. When an electrical potential is applied, it can induce changes in the oxidation states of the catalyst, modify the adsorption energies of reactants, or create new active sites. These changes can facilitate the breaking and forming of chemical bonds, thereby enhancing the catalytic activity. Additionally, the applied potential can help in stabilizing reaction intermediates, which is crucial for processes like water splitting and CO2 reduction.