Emphasizing the potential of hybrid transition-metal selenide@transition metal oxide based core-shell electrode for supercapacitor applications
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초록
내용
High-capacity electrode materials for use in energy storage devices was achieved via nano-hybridization of a core–shell structure integrating a transition metal selenide (TMSe) with transition metal oxides (TMO) on the surface of 3D conductive substrate. In this work, Ni–Co–Se (NCSe) nanorods, templated by oxalic acid and selenium processed, are synthesized on the surface of rGO-NF surface. The NCSe nanorods surface is subsequently adorned with hydrothermally generated NiMoO4 (NMO) nanosheets, resulting in a hierarchical NCSe@NMO@rGO-NF hybrid core-shell structure. The NCSe@NMO@rGO–NF hybrid electrode, as constructed, demonstrates exceptional electrochemical performance with a high specific capacity, exceptional rate performance and notable cyclic performance. A hybrid supercapacitor (HSC) device, was assembled to demonstrate its practical usefulness, which delivered high energy density and power density.