Abstract
An investigation of the electrochemical oxidation of glycerol as alternative to hydrogen and methane in an intermediate temperature solid oxide fuel cell (IT-SOFC) by using a noble metal-free anode catalyst was carried out. The anode electrocatalyst was based on a Ni-modified La0.6Sr0.4Fe0.8Co0.2O3 (LSFCO) perovskite. After thermal activation, Ni was mainly present as ultrafine La2NiO4 particles homogeneously dispersed on the perovskite surface. The thermal treatment also caused a modification of perovskite into a lanthanum depleted SrFe0.8Co0.2O3 (SFCO) structure. These results were corroborated by x-ray diffraction (XRD) and transmission electron microscopy (TEM). By using this modified perovskite, a low ohmic resistance was recorded and suitable power density achieved for an electrolyte supported IT-SOFC. The effects on the electrochemical performance produced by the variation of the ratio of glycerol / water for the anode feed were investigated.
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