Platinum: A key element in electrode composition for reversible chloralkaline electrochemical cells

In this work, the performance of a reversible electrochemical cell using three different electrodes (Ti/Ru0.5Ir0.5O2, Ti/Ru0.3Ti0.7O2, and Ti/Ru0.3Ti0.6O2Pt0.1) is evaluated compared for oxidation chlorides reduction chlorine. Results indicate that technology successful its efficiency depends significantly on composition electrode in charge chlorine electrochemistry. Operating at 0.5 V allows us to obtain near 7 mA cm−2 power efficiencies around 120 Wh mmol−1 hydrogen supplied. electrolytic mode, 4 mol Cl2 mWh−1 can be obtained. The best shown by Ti/Ru0.3Ti0.6O2Pt0.1 resulting from roughest morphology presence Pt. shifting electrolyzer fuel current produced rapidly stabilized Ti/Ru0.5Ir0.5O2 electrodes. However, showed progressive change, which suggests change negatively affects system.