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- W4367175072 abstract "Designing an active, stable, and nonprecious metal catalyst substitute for Pt in the oxygen reduction reaction (ORR) is highly demanded for energy-efficient and cost-effective prototype devices. Single-atomic-site catalysts (SASCs) have been widely concerning because of their maximum atomic utilization and precise structural regulation. Despite being challenging, the controllable synthesis of SASCs is crucial for optimizing ORR activity. Here, we demonstrate an ultrathin organometallic framework template-assisted pyrolysis strategy to synthesize SASCs with a unique two-dimensional (2D) architecture. Electrochemical measurements revealed that Fe-SASCs displayed an excellent ORR activity in an alkaline media, having a half-wave potential and a diffusion-limited current density comparable to those of commercial Pt/C. Remarkably, the durability and methanol tolerance of Fe-SASCs were even superior to those of Pt/C. Furthermore, Fe-SASCs displayed a maximum power density of 142 mW cm–2 with a current density of 235 mA cm–2 as a cathode catalyst in a zinc-air battery, showing its great potential for practical applications." @default.
- W4367175072 created "2023-04-28" @default.
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- W4367175072 date "2023-04-27" @default.
- W4367175072 modified "2023-10-15" @default.
- W4367175072 title "Two-Dimensional Covalent Framework Derived Nonprecious Transition Metal Single-Atomic-Site Electrocatalyst toward High-Efficiency Oxygen Reduction" @default.
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- W4367175072 doi "https://doi.org/10.1021/acs.nanolett.3c00133" @default.
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