Dip-coated Ru-Mo-O/Ti electrodes for electrochemical capacitors

RuO2-MoO3/Ti electrodes prepared by a dip-coating method provide an extreme ly large pseudocapacitance showing that they have a potential for use as el ectrochemical capacitors. The highest pseudocapacitance was 208 F g(-1) for RuO2(50)-MoO3(50)/Ti. The voltammetric charge of this electrode, 166 C g(- 1) between 0.3 and 1.1 V (vs. RHE), corresponds to 0.48 protons contributed to the adsorption and desorption on every loaded ruthenium, if the probabl e contribution of molybdenum to the pseudocapacitance was neglected.