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- W2903269867 abstract "Doping homogeneous elements and conducting morphological adjustment as commonly-used modification methods are both effective to promote the electrochemical properties of electrode materials. In this work, nickel-doped manganese carbonate with 3D flower-like structure was synthesized by a one-step hydrothermal method, and the corresponding growth mechanism was investigated. The electrochemical characteristics of as-fabricated electrode materials were measured, among which 3D self-assembled Ni0.2Mn0.8CO3 nanoflower with large surface area exhibited superior areal capacitance of 583.5 F g−1 at 1 A g−1 (fourfold more than MnCO3 microcubes), excellent electrical conductivity as well as satisfactory cycling stability (84.78% capacitance retention after 2000 cycles at 2 A g−1). In addition, the asymmetric supercapacitor assembled with Ni0.2Mn0.8CO3 as cathode and commercial activated carbon as anode displayed a high energy density of 24.1 Wh kg−1 at the power density of 0.74 kW kg−1 and showed a desirable cycle life. In summary, the unique 3D flower-like Ni0.2Mn0.8CO3 nanomaterial could be regarded as a promising electrode material for high-performance supercapacitors." @default.
- W2903269867 created "2018-12-11" @default.
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- W2903269867 date "2019-04-01" @default.
- W2903269867 modified "2023-09-27" @default.
- W2903269867 title "Facile preparation of Ni-doped MnCO3 materials with controlled morphology for high-performance supercapacitor electrodes" @default.
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- W2903269867 doi "https://doi.org/10.1016/j.ceramint.2018.11.224" @default.
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