A high power density, high efficiency hydrogen–chlorine regenerative fuel cell with a low precious metal content catalyst

摘要: We report the performance of a hydrogen–chlorine electrochemical cell with chlorine electrode employing low precious metal content alloy oxide electrocatalyst for electrode: (Ru0.09Co0.91)3O4. The employs commercial hydrogen fuel and transports protons through Nafion membrane in both galvanic electrolytic mode. peak power density exceeds 1 W cm−2, which is twice previous literature values. loading below 0.15 mg Ru cm−2. Virtually no activation losses are observed, allowing to run at nearly 0.4 cm−2 90% voltage efficiency. effects fluid pressure, electrolyte acid concentration, hydrogen-side humidification on overall A comparison our results model Rugolo et al. [Rugolo al., J. Electrochem. Soc., 2012, 159, B133] points out directions further enhancement. reported here gives these devices promise applications carbon sequestration grid-scale electrical energy storage.