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A study by XRD of iron phthalocyanine (FePc) leads to conclude that as received FePc was under α phase whereas heat-treated FePc was under β phase. The activity of α- and β-FePc towards oxygen reduction reaction (orr) was compared. The α-FePc catalyst displayed an overpotential towards the oxygen reduction reaction 100mV lower than that with β-FePc. Tafel slopes were drawn from electrochemical data...
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