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- W2091931521 abstract "A series of double-layered gas diffusion electrodes with two different electrocatalysts, i.e., Ag and pyrolyzed macrocycle mixture (PMM) were prepared in order to find out the maximum limiting current densities (iL) by varying the oxygen partial pressures in 6 M KOH and at 65 °C. As optimization of the active (catalyst) layer is important for better utilization of the catalytic reactions for oxygen reduction and thereby attainment of high current density, electrochemical measurements in half-cells were carried out to substantiate the current–thickness relationships. The thicknesses for both the active layers and diffusion layers were determined by using SEM. iL for an oxygen concentration simulating that of air was found to be 2.2 A cm−2 for the PMM with 0.51 mm and 1.6 A cm−2 for the Ag-based catalyst with 0.56 mm thicknesses of the active layer. An overlay of a mathematical model, describing the parameters for determination of iL, has also been inserted alongside the experimental values." @default.
- W2091931521 created "2016-06-24" @default.
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- W2091931521 date "2004-06-01" @default.
- W2091931521 modified "2023-10-16" @default.
- W2091931521 title "Determination of the thicknesses of the active layer and cathode limiting currents in AFC" @default.
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- W2091931521 doi "https://doi.org/10.1016/j.elecom.2004.03.015" @default.
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