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- W3208484423 abstract "Electrochemical water splitting is convinced as one of the most promising solutions to combat the energy crisis. The exploitation of efficient hydrogen and oxygen evolution reaction (HER/OER) bifunctional electrocatalysts is undoubtedly a vital spark yet challenging for imperative green sustainable energy. Herein, through introducing a simple pH regulated redox reaction into a tractable hydrothermal procedure, a hierarchical Fe3O4@MnOx binary metal oxide core-shell nano-polyhedron was designed by evolving MnOx wrapped Fe3O4. The MnOx effectively prevents the agglomeration and surface oxidation of Fe3O4 nano-particles and increases the electrochemically active sites. Benefiting from the generous active sites and synergistic effects of Fe3O4 and MnOx, the Fe3O4@MnOx-NF nanocomposite implements efficient HER/OER bifunctional electrocatalytic performance and overall water splitting. As a result, hierarchical Fe3O4@MnOx only requires a low HER/OER overpotential of 242/188 mV to deliver 10 mA cm-2, a small Tafel slope of 116.4/77.6 mV dec-1, combining a long-term cyclability of 5 h. Impressively, by applying Fe3O4@MnOx as an independent cathode and anode, the overall water splitting cell supplies a competitive voltage of 1.64 V to achieve 10 mA cm-2 and super long cyclability of 80 h. These results reveal that this material is a promising candidate for practical water electrolysis application." @default.
- W3208484423 created "2021-11-08" @default.
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- W3208484423 date "2021-01-01" @default.
- W3208484423 modified "2023-10-15" @default.
- W3208484423 title "Hierarchical Fe–Mn binary metal oxide core–shell nano-polyhedron as a bifunctional electrocatalyst for efficient water splitting" @default.
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- W3208484423 doi "https://doi.org/10.1039/d1dt03048e" @default.
- W3208484423 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34787163" @default.
- W3208484423 hasPublicationYear "2021" @default.
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