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- W2895895326 startingPage "238" @default.
- W2895895326 abstract "Abstract The oxygen evolution reaction (OER) on the anode is a vital electrocatalytic reaction in the field of energy conversion. Currently, transition metals-based nanomaterials are promising Ir/Ru-alternative OER electrocatalysts in alkaline media. In this work, we report that in-situ direct growth of atomically thick Fe doped Co3O4 holey nanosheets on nickel foam (Fe-Co3O4 H-NSs/NF) using a simple cyanogel−NaBH4 route, which effectively avoids the tedious post-etch process of nanosheets using plasma, acid, alkali, and so on. Benefiting from ultrathin thickness (1.5 nm), numerous holes, and synergistic effect between Co and Fe atoms, Fe-Co3O4 H-NSs/NF provide a large specific surface area (199.12 m2 g−1) and highly active catalytic sites for the OER. Meanwhile, nickel foam substrate with three-dimensionally porous structure and high conductivity accelerates molecules/ions/gases transportation and electron transfer. Consequently, Fe-Co3O4 H-NSs/NF with optimal Co/Fe composition show super electrocatalytic performance for the OER, including an overpotential as small as ∼204 mV at 10 mA cm−2 current density and a small Tafel slope of 38 mV dec−1, which is much better than commercial RuO2 nanoparticles." @default.
- W2895895326 created "2018-10-26" @default.
- W2895895326 creator A5026605210 @default.
- W2895895326 creator A5035315138 @default.
- W2895895326 creator A5052676364 @default.
- W2895895326 creator A5056532246 @default.
- W2895895326 creator A5060002817 @default.
- W2895895326 creator A5064680649 @default.
- W2895895326 date "2018-12-01" @default.
- W2895895326 modified "2023-09-27" @default.
- W2895895326 title "Direct chemical synthesis of ultrathin holey iron doped cobalt oxide nanosheets on nickel foam for oxygen evolution reaction" @default.
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