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• W4366606446 abstract "The development of a simple and effective strategy for designing a highly efficient oxygen evolution electrocatalyst is more important to speed up the efficiency-limiting step involved in water electrolysis. The high efficiency of the oxygen evolution reaction (OER) is directly correlated with the class of electrode materials employed. This work reports a series of Co3S4 nanoparticles (Co3S4-2h, Co3S4-3h, and Co3S4-4h) derived from a metal–organic framework (MOF) via a single-step annealing strategy with varying reaction times for the study of OER. During the annealing process, the MOF precursor [Co3(tiron-bpy)2(bpy)(H2O)8]·(H2O)2 termed as Co-T-BPY directly converted to cobalt sulfide (Co3S4) nanoparticles, along with additional support of the N-doped carbon moiety. Interestingly, variation of reaction time in a fixed temperature condition played a decisive role in optimizing the surface area with huge active sites of the derived products. The optimized Co3S4-3h product needed an overpotential of 285 mV to reach 10 mA cm–2 current density and an acceptable Tafel value (109 mV dec–1) with excellent 14 h of stability performance under harsh alkaline conditions. The OER results are attributed to the combined effect of the Co3S4 phase and N-doped carbon matrix, resulting in substantial stability and high conductivity. Therefore, we believe that the time variation strategy for the preparation of a cobalt-based non-precious electrode material can pave the way in search of an OER-efficient electrocatalyst." @default.
• W4366606446 created "2023-04-23" @default.
• W4366606446 creator A5019652364 @default.
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• W4366606446 date "2023-04-21" @default.
• W4366606446 modified "2023-10-18" @default.
• W4366606446 title "MOF-Derived Co₃S₄ Nanoparticles Embedded in Nitrogen-Doped Carbon for Electrochemical Oxygen Production" @default.
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• W4366606446 doi "https://doi.org/10.1021/acsanm.3c00845" @default.
• W4366606446 hasPublicationYear "2023" @default.
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