论文信息 - Electrochemical reduction of CO2 by using metal supported gas diffusion electrode under high pressure

Electrochemical reduction of CO2 by using metal supported gas diffusion electrode under high pressure

The electrochemical reduction of CO2 under high pressure was carried out using various metal supported gas diffusion electrodes (GDEs). By using Pt supported GDE in reverse arrangement, in which the Pt catalyst layer of GDE is directed toward CO2 gas phase, methane was produced at faradaic efficiencies of 38.8 %, while in the normal arrangement in which the Pt catalyst layer of GDE is directed toward the electrolyte hydrogen was the main product. By using Ag and Pd supported GDEs, CO was produced at faradaic efficiencies of 57.5-86.0 %. The partial current density of CO formation at Ag supported GDE reached 3.0 A cm-2.

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