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- W2804405495 abstract "The hierarchical CuCo2O4@carbon quantum dots (CQDs) hollow microspheres constructed by 1D porous nanowires have been successfully prepared through a simple CQDs-induced hydrothermal self-assembly technique. XPS analysis shows the CuCo2O4@CQDs possesses the Co(II)-rich surface associated with the oxygen vacancies, which can effectively boost the Faradaic reactions and oxygen evolution reaction (OER) activity. For example, the as-synthesized 3D porous CuCo2O4@CQDs electrode exhibits high activity toward overall electrochemical water splitting, for example, an overpotential of 290 mV for OER and 331 mV for hydrogen evolution reaction (HER) in alkaline media have been achieved at 10 mA cm-2, respectively. Furthermore, an asymmetric supercapacitor (ASC) (CuCo2O4@CQDs//CNTs) delivers a high energy density of 45.9 Wh kg-1 at 763.4 W kg-1, as well as good cycling ability. The synergy of Co(II)-rich surface, oxygen vacancies, and well-defined 3D hollow structures facilitates the subsequent surface electrochemical reactions. This work presents a facile method to fabricate energetic nanocomposites with highly reactive, durable, and universal functionalities." @default.
- W2804405495 created "2018-06-01" @default.
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- W2804405495 date "2018-05-25" @default.
- W2804405495 modified "2023-09-30" @default.
- W2804405495 title "Rational Design of Co(II) Dominant and Oxygen Vacancy Defective CuCo<sub>2</sub>O<sub>4</sub>@CQDs Hollow Spheres for Enhanced Overall Water Splitting and Supercapacitor Performance" @default.
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- W2804405495 doi "https://doi.org/10.1021/acs.inorgchem.8b01020" @default.
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