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- W4297372614 abstract "Inspired by electrocatalytic kinetics, the design of hollow hierarchical structure through the integration of three-dimensional (3D) scaffolds and two-dimensional (2D) sheet-like materials was considered as an effective approach to achieve superior electrocatalytic activity. Ni(OH)2 [email protected] nanosheets hollow hierarchical structure (Ni(OH)2 [email protected] NSs HHS) was synthesized by a sulfidation involved coordinated etching and precipitation (CEP) process for the first time. Interestingly, CuS nanosheets were vertically distributed on Ni(OH)2 NBs. As a sensitive electrode for dopamine, Ni(OH)2 [email protected] NSs HHS modified glassy carbon electrode (GCE) showed a sensitivity as high as 1011.7 μA mM−1 cm−2, which was greater than those of Ni(OH)2 [email protected] NSs fragmentized HHS/GCE (Ni(OH)2 [email protected] NSs FHHS/GCE, 354.1 and 717.2 μA mM−1 cm−2), CuS NBs/GCE (646.2 μA mM−1 cm−2) and Ni(OH)2 NBs/GCE (472.1 and 848.2 μA mM−1 cm−2). Moreover, Ni(OH)2 [email protected] NSs HHS/GCE showed an ultralow detection limit of 3.2 nM. According to theoretical calculation, the excellent electroactivity was attributed to the enhanced kinetics issued from the combination of 3D Ni(OH)2 NBs and 2D CuS NSs. Ni(OH)2 [email protected] NSs HHS was expected as an ideal electrocatalyst for dopamine electrochemical sensing, and the integrating of transition metal-based hollow scaffolds and 2D materials provided new thought to acquire high electrocatalystic activity." @default.
- W4297372614 created "2022-09-28" @default.
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- W4297372614 date "2022-12-01" @default.
- W4297372614 modified "2023-10-18" @default.
- W4297372614 title "Design of Ni(OH)2 nano-boxes@CuS nanosheets hollow hierarchical structure to achieve synergistic catalysis for high sensitivity dopamine electrochemical sensing" @default.
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- W4297372614 doi "https://doi.org/10.1016/j.jallcom.2022.167390" @default.
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