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A series of non-precious metal catalysts for oxygen reduction reaction (ORR) in PEMFCs are prepared by pyrolysis of different precursors at 800°C under an Ar atmosphere. These precursors are 3d transition metal triethylenetetramine chelates supported on carbon (MTETA/C, M=Fe, Co, Ni, Cu, Zn and Mn). Results by XRD and TEM indicate that the catalyst transforms to a carbon structure embedded with metal...
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