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Energiespeicherung und ‐umwandlung In ihrer Zuschrift auf S. 3974 berichten Z. H. Wen et al. über die Entwicklung einer kostengünstigen Zn‐H2O‐Brennstoffzelle für die hoch effiziente simultane Erzeugung von Elektrizität und H2
An alkaline–acid Zn–H2O fuel cell is proposed for the simultaneous generation of electricity with an open circuit voltage of about 1.25 V and production of H2 with almost 100 % Faradic efficiency. We demonstrate that, as a result of harvesting energy from both electrochemical neutralization and electrochemical Zn oxidation, the as‐developed hybrid cell can deliver a power density of up to 80 mW cm...
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