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AssigneeVito NV
InventorsChandani SINGH, Johanna RADOMSKI, Zhiyuan CHEN, Yuvraj Y. BIRDJA, Jan VAES, Jia SONG, Deepak PANT
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The present invention relates to a method of re-activation and long-term stable operation of a metal based gas diffusion electrode (GDE), and the use thereof in the electrocatalytic conversion of gaseous reactants into economically interesting reaction products. Using the operational method of the present invention such metal based GDEs, and in particular carbon free metal based GDEs are particularly useful in the electrochemical conversion of gaseous reactants such as CO2, CO, N2, or O2 into bulk chemicals and fuels such as Syngas, Formic Acid, Methanol, Ethanol, Ethane, Ethylene, Methane, Ammonia, and the like for durable operation (>1000 hours).
A method of operating an electrochemical cell in the electrochemical conversion of a gaseous reactant into bulk chemicals at the working electrode, said method comprising the use of a metal based GDE working electrode as cathode, an anode, and an electrolyte, said method of operation being characterized in maintaining the pH of the electrolyte within a range of 2 units of its initial value, and in applying an anodic pulse to the working electrode with intervals.
Dependencies are inferred from the claim text.