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• W2509589033 startingPage "5710" @default.
• W2509589033 abstract "It is an ongoing challenge to fabricate nonprecious oxygen reduction reaction (ORR) catalysts that can be comparable to or exceed the efficiency of platinum. A highly active non-platinum self-supporting Fe−N/C catalyst has been developed through the pyrolysis of a new type of precursor of iron coordination complex, in which 1,4-bis(1H-1,3,7,8–tetraazacyclopenta(1)phenanthren-2-yl)benzene (btcpb) functions as a ligand complexing Fe(II) ions. The optimal catalyst pyrolyzed at 700 °C (Fe−N/C−700) shows the best ORR activity with a half-wave potential (E1/2) of 840 mV versus reversible hydrogen electrode (RHE) in 0.1 m KOH, which is more positive than that of commercial Pt/C (E1/2: 835 mV vs RHE). Additionally, the Fe−N/C−700 catalyst also exhibits high ORR activity in 0.1 m HClO4 with the onset potential and E1/2 comparable to those of the Pt/C catalyst. Notably, the Fe−N/C−700 catalyst displays superior durability (9.8 mV loss in 0.1 m KOH and 23.6 mV loss in 0.1 m HClO4 for E1/2 after 8000 cycles) and better tolerance to methanol than Pt/C. Furthermore, the Fe−N/C−700 catalyst can be used for fabricating the air electrode in Zn–air battery with a specific capacity of 727 mA hg−1 at 5 mA cm−2 and a negligible voltage loss after continuous operation for 110 h." @default.
• W2509589033 created "2016-09-16" @default.
• W2509589033 creator A5032776519 @default.
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• W2509589033 date "2016-08-31" @default.
• W2509589033 modified "2023-10-16" @default.
• W2509589033 title "2D Nanoporous Fe−N/C Nanosheets as Highly Efficient Non-Platinum Electrocatalysts for Oxygen Reduction Reaction in Zn-Air Battery" @default.
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• W2509589033 doi "https://doi.org/10.1002/smll.201601887" @default.
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